ATI TEAS7 - science (amanda_teas/naxlex)

What are the three types of salivary glands & where are they located? (Match the letter to the number.)

A) Parotid
B) Sublingual
C) Submandibular

1) Under the jawbone
2) Roof of the mouth
3) Within the cheeks

A2) Parotid is located in the roof of the mouth.
B3) Sublingual is within the cheeks.
C1) Submandibular is under the jawbone.

Which of the following substances is excreted by the kidneys to regulate blood pressure?

A) Renin
B) Erythropoietin
C) Calcitriol
D) Urobilinogen

What is the chemical formula for water?

A) H₂O
B) CO₂
C) NaCl
D) C₆H₁₂O₆

A) H₂O

What is the largest organ in the human body by surface area?

A) Brain
B) Heart
C) Liver
D) Skin

D) Skin

The skin is the largest organ in the human body, covering the entire exterior and serving as a protective barrier.

Which of the following units is used to indicate length?

A) kg
B) L
C) s
D) m

D) m

The unit used to indicate length is the meter (m). It is the base unit of length in the International System of Units (SI).

A researcher collects data on the number of cars passing through a busy intersection at different times of the day for a month. This data would be most useful to analyze which of the following:

A) Traffic patterns during rush hour
B) Pedestrian movement during the day
C) Air pollution levels in the area
C) Noise levels in the area

A) Traffic patterns during rush hour

Which of the following describes the function of ligaments?

A) Ligaments attach skeletal muscles to bone
B) Ligaments attach two bones
C) Ligaments attach bones to tendons
D) Ligaments attach skeletal muscles to tendons

B) Ligaments attach two bones

Ligaments are tough bands of fibrous tissue that connect two bones together in a joint. They provide stability and support to the joint, preventing excessive movement and helping to maintain proper alignment of the bones.

Which of the following is responsible for carrying amino acids to ribosomes during protein synthesis?

A) tRNA
B) mRNA
C) rRNA
D) DNA

A) tRNA

Each tRNA molecule has a specific anticodon that matches a codon on the mRNA molecule. When bonded, it brings the corresponding amino acid to the ribosome, where it is added to the growing polypeptide chain.

Which part of the respiratory system is responsible for regulating breathing rate & depth?

A) Bronchi
B) Alveoli
C) Diaphragm
D) Trachea

C) Diaphragm

Which of the following is the process by which DNA is copied into RNA?

A) Replication
B) Transcription
C) Translation
D) Mutation

B) Transcription

During transcription, DNA unwinds & RNA polymerase reads the DNA sequences & synthesizes a complementary RNA molecule using DNA as a template.

What is the difference between innate & adaptive immunity?

A) Innate immunity is present at birth while adaptive immunity is acquired after exposure to pathogens.
B) Innate immunity is specific to particular pathogens while adaptive immunity is nonspecific.
C) Innate immunity is mediated by antibodies while adaptive immunity is mediated by T cells.
D) Innate immunity provides long-term protection while adaptive immunity provides only short-term protection.

A) Innate immunity is present at birth while adaptive immunity is acquired after exposure to pathogens.

Innate immunity is the first line of defense & present at birth, it includes physical/chemical barriers. (Skin, mucous membranes, antimicrobial peptides, macrophages, natural killer cells).
Adaptive immunity is acquired after exposure to pathogens, it involves production of antibodies & activation of T cells specific to particular pathogens. It's longer to develop but more specific/targeted.

What are the steps involved in the scientific method?

A) Observation, hypothesis, prediction, experimentation, analysis, conclusion.
B) Hypothesis, observation, prediction, experimentation, analysis, conclusion.
C) Prediction, observation, experimentation, analysis, conclusion, hypothesis.
D) Observation, data collection, analysis, experimentation, hypothesis, conclusion.

A) Observation, hypothesis, prediction, experimentation, analysis, conclusion.

What is the difference between a solid and a liquid?

A) Solids have a definite shape & volume while liquids have a definite volume but no fixed shape.
B) Solids have no definite shape or volume while liquids have a definite volume and & the shape of their container.
C) Solids & liquids have the same physical properties.
D)Solids have a definite volume but take the shape of their container while liquids have a definite shape and volume.

A) Solids have a definite shape & volume while liquids have a definite volume but no fixed shape.

Which part of the respiratory system is responsible for regulating breathing rate & depth?

A) Bronchi
B) Alveoli
C) Diaphragm
D) Trachea

C) Diaphragm

What is the difference between a monosaccharide & a disaccharide?

A) Monosaccharides are composed of two sugar molecules while disaccharides are composed of a single sugar molecule.
B) Monosaccharides are simple sugars that cannot be further broken down into simpler sugars while disaccharides are composed of two simple sugars.
C) Monosaccharides are only found in plants while disaccharides are only found in animals.

B) Monosaccharides are simple sugars that cannot be further broken down into simpler sugars while disaccharides are composed of two simple sugars.

Which of the following is the process by which DNA is copied into RNA?

A) Replication
B) Transcription
C) Translation
C) Mutation

B) Transcription

What is the role of calcium in muscle contraction?

A) Calcium binds to tropomyosin to expose the myosin-binding sites on actin.
B) Calcium is released from the sarcoplasmic reticulum to initiate the sliding of actin and myosin filaments.
C) Calcium activates the motor neurons to stimulate muscle contraction.
D) Calcium is required for the relaxation of muscles after contraction.

B) Calcium is released from the sarcoplasmic reticulum to initiate the sliding of actin and myosin filaments.

What is the name of the dome-shaped muscle that plays a key role in breathing?

A) Diaphragm
B) Trachea
C) Bronchus
D) Alveoli

A) Diaphragm

What is the role of the epididymis in sperm maturation?

A) The epididymis produces sperm cells.
B) The epididymis stores & protects sperm cells until ejaculation.
C) The epididymis is responsible for the transport of sperm cells from the testes to the urethra.
D) The epididymis provides nourishment to sperm cells.

B) The epididymis stores & protects sperm cells until ejaculation.

Which of the following is a function of the respiratory system?

A) Transport of nutrients to the body
B) Pumping of blood to the lungs
C) Exchange of gases between the body & the environment
C) Digestion of food in the stomach

C) Exchange of gases between the body & the environment

*What is the difference between isotonic & isometric muscle contractions?

A) Isotonic contractions produce no movement while isometric contractions produce movement.
B) Isotonic contractions produce movement while isometric contractions produce no movement.
C) Isotonic contractions generate tension in the muscle while isometric contractions involve the shortening of the muscle fibers.
D) Isotonic contractions involve the contraction of individual muscle fibers while isometric contractions involve the entire muscle.

B) Isotonic contractions produce movement while isometric contractions produce no movement.

Which type of immune response is the body's first line of defense against infections?

A) Adaptive immunity
B) Humoral immunity
C) Innate immunity
D) Cell-mediated immunity

C) Innate immunity

Which of the following is NOT one of the four primary tissue types found in the human body?

A) Epithelial
B) Nervous
C) Connective
D) Exocrine glandular

D) Exocrine glandular

Which of the following is a type of genetic mutation that involves the insertion or deletion of one or more nucleotides in a DNA sequence?

A) Silent mutation
B) Nonsense mutation
C) Frameshift mutation
D) Missense mutation

C) Frameshift mutation

Which of the following describes the process of osmosis?

A) Movement of substances from an area of high concentration to an area of low concentration.
B) Movement of substances against a concentration gradient with the help of transport proteins.
C) Movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.
D) Movement of substances into a cell by engulfing them with the plasma membrane.

C) Movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.

Which of the following is a chemical property of a substance?

A) Density
B) Melting point
C) Boiling point
D) Reactivity with acid

D) Reactivity with acid

Chemical properties are characteristics of a substance that describe its ability to undergo a chemical change or reaction with another substance.

Reactivity with acid is a chemical property because it describes how a substance will react with an acid to produce a new substance.

*What is the difference between a physical change & a chemical change?

A) A physical change involves the rearrangement of atoms & molecules while a chemical change involves the formation of new substances with different chemical properties.
B) A physical change involves the change of one state of matter to another while a chemical change involves.
C) The change of one substance into another.
D) A physical change involves the breaking of chemical bonds while a chemical change involves the breaking of intermolecular forces.

A) A physical change involves the rearrangement of atoms & molecules while a chemical change involves the formation of new substances with different chemical properties.

During embryonic development, which of the following germ layers forms the nervous system?

A) Ectoderm
B) Endoderm
C) Mesoderm
D) Exoderm

A) Ectoderm

The three germ layers that form during embryonic development are the ectoderm, mesoderm, & endoderm. The ectoderm is the outermost layer, & it gives rise to the skin, hair, nails, and nervous system.

What is the primary pigment responsible for photosynthesis in plants?

A) Chlorophyll a
B) Chlorophyll b
C) Carotenoids
D) Anthocyanins

A) Chlorophyll a

Chlorophyll a is the primary pigment responsible for photosynthesis in plants. It is a green pigment that is essential for capturing light energy from the sun & converting it into chemical energy that can be used by the plant

Which of the following is an example of an exothermic reaction?

A) Melting ice
B) Burning wood
C) Cooking an egg
D) Dissolving sugar in water

B) Burning wood

What is the function of ribosomes in a cell?

A) To produce energy for the cell
B) To store genetic information
C) To transport molecules within the cell
D) To synthesize proteins in the cell

D) To synthesize proteins in the cell

Which of the following is an example of a double-blind study?

A) Participants are randomly assigned to a treatment group or a control group
B) Participants & researchers both know which group participants are assigned to
C) Participants do not know which group they are assigned to, but researchers do
D) Both participants & researchers do not know which group participants are assigned to

D) Both participants & researchers do not know which group participants are assigned to

What is the name of the hormone that regulates blood sugar levels in the human body?

A) Insulin
B) Glucagon
C) Estrogen
D) Testosterone

A) Insulin

!: What is the primary physiological function of erythrocytes in the human circulatory system?

Transportation of oxygen to body tissues

What is the name of the joint that allows for rotation of the arm at the shoulder?

A) Elbow joint
B) Hip joint
C) Knee joint
D) Shoulder joint

D) Shoulder joint

What is the name of the valve that separates the left atrium and left ventricle in the heart?

A) Aortic valve
B) Mitral valve
C) Tricuspid valve
D) Pulmonary valve

B) Mitral valve

What is the molecular geometry of a molecule of Sulphur dioxide (SO₂)?

A) Linear
B) Trigonal planar
C) Bent
D) Tetrahedral

C) Bent

What is the name of the genetic disorder caused by the presence of an extra chromosome 21?

A) Turner syndrome
B) Klinefelter syndrome
C) Down syndrome
D) Huntington's disease

C) Down syndrome

What are the five regions of the vertebral column, starting from the top & moving downwards?

A) Cervical, thoracic, lumbar, sacral, coccygeal
B) Thoracic, cervical, lumbar, sacral, coccygeal
C) Lumbar, thoracic, cervical, coccygeal, sacral
D) Sacral, lumbar, cervical, thoracic, coccygeal

A) Cervical, thoracic, lumbar, sacral, coccygeal

Which of the following are the two major parts of the nervous system?

A) Autonomic nervous system & somatic nervous system.
B) Peripheral nervous system & somatic nervous system.
C) Peripheral nervous system & central nervous system.
D) Autonomic nervous system & central nervous system.

C) Peripheral nervous system & central nervous system.

The measurement indicated by the line across the center of the cell is best referred to as which of the following?

A) Area
B) Diameter
C) Volume
D) Radius

B) Diameter

Which of the following ions binds to the troponin complex, initiating muscle contraction?

A) Potassium
B) Calcium
C) Phosphorus
D) Sodium

B) Calcium

Which of the following microorganisms lack their own metabolic pathways and can reproduce inside a host cell?

A) Protozoa
B) Helminths
C) Viruses
D) Bacteria

C) Viruses

Which of the following is the atomic number of an atom that has 12 protons & 12 neutrons?

A) 24
B) 12
C) 1
D) 144

B) 12

Which of the following cell types produce & release antibodies?

A) T-cells
B) Dendritic cells
C) B-cells
D) Natural killer cells

C) B-cells

Which of the following types of cells produce and release antibodies?

A) Natural killer cells
B) Cytotoxic T-cells
C) Plasma B cells
D) Helper T-cells

C) Plasma B cells

Which of the following organic molecules contains both an amine and carboxyl group?

A) Lipids
B) Chitlin
C) Cellulose
D) Proteins

D) Proteins

Which of the following allows the AIDS virus, which contains RNA, to insert viral DNA into the DNA of a host cell after the AIDS virus enters the cell?

A) The phospholipids found on the envelope of the virus.
B) Reverse transcriptase, an enzyme encoded by the virus.
C) Receptor proteins located on the surface of the virus.
D) The protein that makes up the capsid of the virus.

B) Reverse transcriptase, an enzyme encoded by the virus.

Which if the following is the main function of centrosomes in animal cells?

A) Pathogen digestion
B) Organelle trafficking
C) Microtubule organization
D) Cytoplasm

C) Microtubule organization

Which of the following is a group that can be measured against the experimental group?

A) Responding
B) Control
C) Variable
D) Variables

B) Control

Which of the following are used to determine a persons DNA sequence?

A) Genes
B) Blood type
C) Hormone
D) Enzymes

A) Genes

The cytoskeleton of a cell is comprised of which of the following macromolecules?

A) Nucleic acids
B) Proteins
C) Carbohydrates
D) Lipids

B) Proteins

Which of the following properties of water explains its solvent abilities for certain substances?

A) High surface tension
B) Kinetic energy of liquid water molecules
C) Polarity of water molecules
D) High specific heat

C) Polarity of water molecules

Which of the following indicates the function of sodium bicarbonate released by the pancreas?

A) Sodium bicarbonate stimulates the pyloric sphincter
B) Sodium bicarbonate is a protease that digests carbohydrates
C) Sodium bicarbonate neutralizes the acidity of chime
D) Sodium bicarbonate inhibits peristalsis

C) Sodium bicarbonate neutralizes the acidity of chime

Osteoporosis results from which of the following?

A) A decline in osteoclast activity while osteoblast activity continues at expected levels
B) An increase in osteoblast activity while osteoblast activity continues at expected levels
C) A decline in osteoblast activity while osteoclast activity continues at expected levels
D) An increase is osteocyte while activity continues at expected level

C) A decline in osteoblast activity while osteoclast activity continues at expected levels

Which of the following is the process in which an ovarian follicles matures and releases a reproductive egg?

A) Menstruation
B) Ovulation
C) Fertilization
D) Oogenesis

B) Ovulation

Which of the following is the appropriate threshold valve for mammailian neurons?

A) -80 Mv
B) -55mV
C) +35 mV
D) 0 mV

B) -55mV

Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

A) Conversion to carbon monoxide
B) Diffusion down a concentration gradient
C) Passive transport using carrier proteins
D) Active transport using energy

B) Diffusion down a concentration gradient

A myocardial infarction affects which of the following blood vessels of the heart?

A) Aorta
B) Vena cava
C) Pulmonary
D) Coronary

D) Coronary

A myocardial infarction refers to heart attack, which result from blockage of blood flowing into the heart.

Blocking is caused by the deposition of fat or cholesterol that forms plaque on the surface of coronary arteries, which supply blood to the heart.

Which of the following structures is present in both prokaryotic and eukaryotic cells?

A) Chloroplast
B) Golgi apparatus
C) Endoplasmic reticulum
D) Cell membrane

D) Cell membrane

In the following data table of an experiment carried out at 4°C (39.2° F) over 4 hours, which of the following options represents the dependent variable?

Solution in bag/Solution outside bag/Bag mass change (g)
1. water/water/-0.2
2. 20% sucrose/water/+2.4
3. 40% sucrose/water/+4.3
4. 60% sucrose/water/+5.8

A) Duration
B) Temperature
C) Sucrose concentrations
D) Bag mass change

D) Bag mass change

Which of the following is the structure through which blood exits the glomerulus?

A) Proximal tubule
B) Distal tubule
C) Afferent arteriole
D) Efferent arteriole

D) Efferent arteriole

In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves?

A) ff x ff
B) Ff x Ff
C) FF x FF
D) Ff x ff

A) ff x ff

Which of the following represents the complementary strand of a DNA sequence 3' TCGATCGCA 5'?

A) 3' AGCTAGCGT 5'
B) 5' AGCTAGCGT 3'
C) 5' UCGAUCGCA 3'
D) 3' TCGUTCGCU 3'

B) 5' AGCTAGCGT 3'

Which of the following is a mass with the ovary that secrets hormones to maintain the uterine lining during pregnancy?

A) Umbilical cord
B) Corpus luteum
C) Oocyte
D) Oviduct

B) Corpus luteum

Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

A) Sebum
B) Water
C) Lysozymes
D) Urea

D) Urea

Which of the following glands synthesizes antidiuretic hormone?

A) Thymus
B) Pineal gland
C) Pancreas
D) Hypothalamus

D) Hypothalamus

In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following?

A) Osmosis
B) Diffusion
C) Active transport
D) Facilitated diffusion

A) Osmosis

Which of the following reasons explains why it is important for new scientific findings to be published?

A) Publishing findings will help scientists become more biased
B) Other scientists can validate or disapprove the findings
C) Scientists will get paid if their findings are published
D) This prevents other scientists from performing similar tests

B) Other scientists can validate or disapprove the findings

*Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

A) Worm infestation prevents the body from immune malfunction.
B) Worm infestation reduces the severity of certain autoimmune disorders.
C) Worm infestations exacerbate the body's immune reactions.
D) Lack of worm infestations is the cause of some autoimmune disorders

B) Worm infestation reduces the severity of certain autoimmune disorders.

Which of the following is correct regarding the pH scale?

A) A substance with a pH of 3 is two times more alkaline than a substance with a pH of 4
B) A substance with a pH of 3 is two times more acidic than a substance with a pH of 4
C) A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4
D) A substance with a pH of 3 is 10 times more alkaline than a substance with a pH of 4

C) A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4

Nitrogen gas is an extremely stable because its structure contain which of the following?

A) Hydrogen bonds
B) Triple covalent bonds
C) Resonance bonds
D) Ionic bonds

B) Triple covalent bonds

Which of the following substances protects the skin from ultraviolet radiation?

A) Kerstin
B) Melanin
C) Perspiration
D) Sebum

B) Melanin

Which of the following statements best supports the hypothesis that viruses can cause cancer?

A) Genes that regulate cell division are found in some viruses
B) Viruses and cancer cells both replicate rapidly
C) Cancerous and normal cells share genetic sequences
D) Cellular DNA has sequences related to viral sequences

A) Genes that regulate cell division are found in some viruses

Which of the following physiological responses is caused by the release of anti-diuretic hormones?

A) Decrease in water reabsorption in the collecting duct
B) Decrease in the concentration of calcium in the glomerulus
C) Increase in water reabsorption in the collecting duct
D) Increase in the concentration of calcium in the glomerulus

C) Increase in water reabsorption in the collecting duct

Lithium has an atomic number of 3 and a mass number of 7.
Which of the following is the number of protons in a lithium atom?

A) 12
B) 7
C) 4
D) 3

D) 3

The pleura is a connective tissue sheath that covers which of the following organs?

A) Lung
B) Heart
C) Spleen
D) Liver

A) Lung

Which of the following summarizes a change that takes place as a solid turns into a liquid?

A) Intermolecular forces between particles become stronger
B) Particles move closer together
C) Particles become less ordered
D) Particles have decrease in mobility

C) Particles become less ordered

Which of the following is the function of totipotent cell?

A) Carriers electrical impulses
B) Fights infectious diseases
C) Aids the maturation of sex cells
D) Develops into any kind of cell

D) Develops into any kind of cell

Which of the following can lead to a tsunami?

A) Sunspot activity
B) Lightening strike
C) Floods
D) Earthquakes

D) Earthquakes

Which of the following vessels carries oxygenated blood?

A) Inferior vena cava
B) Pulmonary vein
C) Pulmonary artery
D) Superior vena cava

B) Pulmonary vein

Testosterone is categorized as which of the following types of hormone?

A) Aldosterone
B) Progestin
C) Androgen
D) Estrogen

C) Androgen

In a phase diagram which of the following is the term used for a substance held at temperature & pressure where the solid, liquid and gaseous states of a substance exist simultaneously?

A) Critical point
B) Triple point
C) Critical temperature
D) Absolute zero

B) Triple point

Which of the following best describes the result of using a catalyst in a chemical reaction?

A) A more desirable product is often formed.
B) The reaction is completed in a shorter amount of time.
C) A greater amount of heat energy is released by the reaction.
D) The yield of product is increased.

B) The reaction is completed in a shorter amount of time.

Which of the following substances is responsible for donating H+ ions to act as a buffer when blood pH rises?

A) Oxygen
B) Carbon monoxide
C) Carbon dioxide
C) Carbonic acid

C) Carbonic acid

To separate genomic DNA fragments by size, which of these laboratory methods is most useful?

A) Spectrophotometry
B) Electrophoresis
C) Filtration
D) Titration

B) Electrophoresis

Experiments cannot validate hypotheses, only falsify them. The statement above can be restated in which of the following ways?

A) Until disproved, an explanation for an observation is valid.
B) Certain concepts cannot be subjected to direct experimentation.
C) A hypothesis that has not been falsified remains provisional.
D) Proving a hypothesis exempts it from further testing

C) A hypothesis that has not been falsified remains provisional.

*Hikers who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicated he was shot with an arrow more than 5,300 years ago. Which of the following would be the best reason for prolonged preservation of the body?

A) The food that the person ate contained toxins that killed the bacteria that would have otherwise destroyed the body.
B) The ultraviolet rays at such a high altitude caused all the body's molecules to be preserved.
C) The arrow wound caused blood to flow out of the body, which led the enzymes that would break down tissue to be cleared from the body.
D) The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.

D) The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.

In which of the following regions of the body are the tibia & fibula?

A) Coxal
B) Antecubital
C) Tarsal
D) Crural

D) Crural

The tibia and fibula are located in the crural region of the body, which is the lower leg between the knee and ankle. The coxal region refers to the hip area, the antecubital region is the front of the elbow, and the tarsal region is the ankle and foot.

Which of the following occurs in an oxidation reaction?

A) Removal of oxygen
B) Addition of carbon
C) Addition of neutrons
D) Removal of electrons

D) Removal of electrons

Which of the following functions does the myelin sheath perform for a nerve cell?

A) Nutrition
B) Sensory perception
C) Insulation
D) Regeneration

C) Insulation

To accurately measure the density of a series of small irregular solids made of plastic, wood, fibreglass, and glass, a student will need which of the following laboratory tools?

A) Graduated cylinder, water, weighing balance
B) Graduated cylinder, spectrophotometer, water
C) Graduated beaker, metric ruler, water
D) Weighing balance, Bunsen burner, metric ruler

A) Graduated cylinder, water, weighing balance

Emphysema caused by damaged to alveoli from toxins & pollutants is likely to result in the body have difficulty performing which of the following actions?

A) Exchanging oxygen & carbon dioxide
B) Producing enzymes
C) Releasing histamine & acetylcholine

A) Exchanging oxygen & carbon dioxide

For which of the following reasons does a chloride ion have a negative charge?

A) It gained an electron.
B) It lost an electron.
C) It lost a proton.
D) It gained a proton.

A) It gained an electron

Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

A) Sebum
B) Water
C) Lysozymes
D) Urea

D) Urea

The triple point of a substance is the temperature and pressure at which the substance exists as which of the following?

A) Simultaneously in sol, gel, and plasma phases
B) As a gel with solid and liquid trapped in gas
C) As a sol with gas and solid trapped in liquid
D) Simultaneously in solid, liquid, and gas phases

D. Simultaneously in solid, liquid, and gas phases

Which of the following is the process in which an ovarian follicles matures and releases a reproductive egg?

A) Menstruation
B) Ovulation
C) Fertilization
D) Oogenesis

B) Ovulation

Which of the following is an efferent neuron that is responsible for releasing a neurotransmiter that stimulates a muscle cell to contract?

A) Motor neuron
B) Interneuron
C) Sensory neuron
D) Neuroglia

A) Motor neuron

Which of the following structures is present in both prokaryotic and eukaryotic cells?

A) Endoplasmic reticulum
B) Chloroplast
C) Cell membrane
D) Golgi apparatus

C) Cell membrane

Which of the following structures is an exocrine gland?

A) Pineal gland
B) Parathyroid gland
C) Parotid gland
D) Pituitary gland

C) Parotid gland