TEAS TEST : SCIENCE

Carbon has an atomic number of 6. Which of the following is true about isotope C-12

C-12 possesses 6 neutrons and 6 protons in its nucleus

Which of the following best describes adaptive immunity?

A response to specific traits of specific pathogens

Which of the following describes why water has a concave, or downward-curving meniscus when poured in a glass beaker?

The adhesive forces with the glass are greater than the cohesive forces

The following diagram summaries the carbonic acid-bicarbonate ion buffer system of the blood CO₂+H₂OH2CO3  HCO_3- +H⁺

Which of the following equations shows the reaction that takes place when there are excessive H+ ions?

HCO3- + H+ - H2CO3

A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2 month period, all with illumination at 1 meter distance from plants grown with the same sol and watering conditions

3 Arabidopsis plant exposed to ultraviolet light (UV)

3 Arabidopsis plants exposed to infrared light (IR)

3 Arabidopsis plants exposed to white light

At the end of the experiment, she finds that the IR treated plants are scorched, the UV treated plants have wilted, but the white light created plants are growing normally.

Which of the following statements is most likely to be correct?

wavelength of lights the only variable that has been changed between groups

Which of the following is a property of water?

Water dissolves polar iconic compounds

Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity?

Active

Which of the following is an example of active transport?

Movement of sodium and potassium across the cell membrane against their concentration gradient

Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities?

Ventral

Mutations in which of the following types of cells can be inherited by offspring?

Ovarian

Which of the following pancreatic secretions digests starch into disaccharides

Amylase

A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis?

There’s a net flow of water out of the cell

When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the formula for the salt?

K2CO3

Which of the following elements has the smallest atomic radius

C

Which of the following structures is a flap of cartilage that prevents the movement of food into the trachea?

Epiglottis

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

Cell membrane

Which of the following is a part of pulmonary circuit

Pulmonary vein

Carbohydrates are composed of which of the following?

Monosacchardies

Histones are proteins associated with which of the following?

DNA

Which of the following layers of skin contains glands and hair follicles

Dermis

Which of the following describes the function of tendons?

Tendons attach skeletal muscle to bone

Which of the following actions does a hydrophilic hormone take to activate a target cell

The hormone binds to cell-surface receptors of the target cells

Which of the following is a weakness of a correlational study?

Cannot determine causation

During muscle contraction, myosin is directly responsible for which of the following?

Forming cross bridges with actin molecules

Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart?

Superior vena cava

Which of the following statements correctly describes the change in coat colouring of an arctic for from brown in summer to white in winter?

The fox’s phenotype changes, but the genotype does not

Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis

Nervous tissue

The shortening of a sarcomere in skeletal muscle is directly due to the interactional of which of the following?

myosin and actin

Which of the following terms describes the removal of metabolic waste from the body?

excretion

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

Urea

A vasectomy is a procedure in which the vas deferens are cut. Which of the following describes why a vasectomy leads to infertility?

the vasectomy blocks movement of sperm from a testis into the epididmymis

Which of the following occurs during inhalation?

The diaphragm moves downward

A scientist predicts that germinating beans will use more oxygen than non-germinating beans. This prediction is referred to as which of the following?

A hypothesis

Which of the following describes the process by which solid carbon dioxide (dry ice) turns directly into carbon dioxide gas?

Sublimation

An equal mass of which of the following states of matter could completely fill either a 100 ml or 500 ml container?

gas

Which of the following parts of the central nervous system releases chemicals that regulate the pituitary gland?

Hypothalamus

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

Receptor proteins located on the surface of the virus

If a portion of a strand of DNA bases reads 5’AGCTAGCGT 3’. What would the sequence of bases on the complementary strand read?

3’TCGATCGCA5’

1Which of the following processes causes most of the carbon dioxide from the blood to move into alveoli

Diffusion down a concentration gradient

Which of the following units is used to indicate mass? 

Mg

Which of the following body systems develop from the same origin tissue as lungs?

gastrointestinal

A researcher is gathering large amounts of data about patients who have a common disease and the effectiveness of various medications in comparison to a placebo. Which of the following types of graphs is the best way for the researcher to present the data?

line graph

A researcher collects high-resolution photographs of the earth taken from outer space at annual intervals for the last decades. This data would be most useful to analyse which of the following?

weather patterns during hurricanes

Which of the following is the appropriate threshold value for mammalian neurons?

-55 mV

In a certain plant, red flowers are dominant over white flowers. A plant heterozygous for red flowers and a plant with white flowers are crossed. Which of the following is the expected proportion of phenotypes in the next generation?

2 red, 2 white

Which of the following structures is present in both prokarayotic cells?

cell membrane

Which of the following can lead to a tsunami?

Earthquakes

Which of the following are used to determine a person’s DNA sequence?

genes

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

proteins

Osteoporosis results from which of the following

a decline in osteoblasts activity while osteoblast activity continues at expected levels

Which of the following is released by one type of immune cell to directly activate type of immune cell?

cytokines

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

Diameter

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

polarity of water molecules

Which of the following vessels caries oxygenated blood?

pulmonary vein

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

corpus luteum

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

electrophoresis

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?

ff x ff

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

increase in water reabsorption in the collecting duct

Which of the following is the atomic number that has 12 protons and 12 neotrons

24

Which of the following glands synthesizes antidiuretic hormone?

hypothalamus

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

other scientists can validate or disapprove the findings

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

carbonic acid

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

efferent arteriole

Which of the following is the function of totipotent cell?

developed into any kind of cell

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

genes that regulate cell division are found in some viruses

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

triple point

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

viruses

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

sodium bicarbonate neutralizes the acidity of chime

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

plasma B cells

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

proteins

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

particles become less ordered

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

microtubule organization

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

androgen

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

peripheral nervous system and central nervous system

Hiker who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicate that he was shot with an arrow more than 5,000 years ago. Which of the following would be the best reason for prolonged preservation of the body?

the body was frozen in the cold temperature of the alps shortly after he died and remained frozen until it was found

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

triple covalent binds

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

the reaction is completed in a shorter amount of time

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

melanin

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?

osmosis

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

control

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

coronary artery

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

diffusion down a concentration gradient

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

urea

Lithium has an atomic number of 3 and a mass of 7, which of the following is the number of protons in a lithium atom

3

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

receptor proteins located in the surface of the virus

A patient’s urine output was 800 ml/hr. following a treatment, the patient’s urine output increased to 1200 ml/hr. What is the percentage change in the urine output? (round the answer to the nearest whole number)

50%

Mutations in which of the following types of cells can be inherited by offspring?

ovarian

Which of the following describes the function of tendons?

tendons attach skeletal muscle to bone

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

urea

Which of the following terms describes the removal of metabolic waste from the body?

excretion

A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis?

there is a net flow of water out of the cell

Which of the following is an example of active transport?

movement of a sodium and potassium across the cell membrane against the concentration gradient

Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart?

superior vena cava

Carbohydrates are composed of which of the following?

monosaccharides

Which of the following is a weakness of a correlational study?

cannot determine causation

Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity?

active

Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis

nervous tissue

 Which of the following statements about COVID-19 vaccine initiation is supported by the data below?

the daily rate for December 29 and January 5 are similar

How many times larger is the volume of a cube that is 4 mm on all sides compared to the volume of a cube that is 2 mm on all sides (round the answer to the nearest whole number)

8 times

Which of the following body systems develop from the same origin tissue as lungs?

gastrointestinal