Teas Science 12, 13, 14, 15, 16, 17, 18, 19, 20

The hepatic portal vein carries nutrient-rich blood to which of the following organs?

Liver

The pharynx is largely made of which of the following types of tissues?

Muscle

Which of the following types of cells are most similar in function to cytotoxic T-cells?

B cells

Blockage and inflammation of which of the following structures most often leads to facial acne?

Sebaceous glands

Which of the following structures in the male reproductive system secretes a fluid that nourishes and protects sperm?

Prostate gland

Which of the following cells secrete bone material?

Osteocyte

Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions?

Exchanging oxygen and carbon dioxide

When experimental results seem to only partly support a hypothesis, a researcher should consider which of the following?

Exploring alternative explanations

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

Electrophoresis

Which of the following terms describe an allele that is expressed over another allele?

Dominant

Which of the following products results from a neutralization reaction between hydrochloric acid (HCI) and sodium hydroxide (NaOH)?

Cl2 and NaOH

Which of the following conditions results in a faster heartbeat?

Increased sympathetic nerve output

Which of the following bacteria are spherical-shaped?

Staphylococcus aureus

Which of the following organs is responsible for secretion of the hormone insulin?

Pancreas

In the graph below which of the following letters indicate the activatation energy of a reaction that is catalyzed by an enzymes

C

B

D

A

B second option

A study evaluated the effect of different concentrations of a new drug on patients with high blood pressure. One group of volunteers was given a low concentration of the drug, a second group was given a medium concentration, and a third group was given a high concentration. A control group received a placebo. The results showed the following changes in blood pressure: low concentration (-5mm Hg), medium concentration (-10 mm Hg), high concentration (-15 mm Hg), and placebo group (-1 mm Hg). Whic

The reduction of blood pressure is proportional to the concentration of the drug.

Which of the following options lists the correct order in which inspired air passes into the respiratory system?

Nose, pharynx, larynx, trachea, bronchi

Which of the following statements is true regarding the number of water molecules in liquid and gaseous phase in a closed container?

The liquid will evaporate until equal amounts of gaseous water molecules are returning to the liquid phase.

Pepsin, which speeds up the breakdown of proteins, is classified as

an enzyme.

Cholesterol is classified as which of the following types of organic molecule?

Protein

Which of the following is a balanced chemical reaction?

H20 > H2 + 2 O2

The enzyme catalase is classified as which of the following?

Protein

Which of the following best explains why elements in the same vertical column of the periodic table exhibit similar chemical reactivities?

They have the same number of valence electrons.

Graph shown

cryophile

mesophile

Themophile

0c

65c

35c

85c

0° C first option

Which of the following hormones increases blood glucose and fatty acid levels?

Insulin

Which of the following number of electrons are found in a boron atom with an atomic number of 5 and a mass number of 11?

5

A doctor explains that a patient has a pulled muscle in his back which of the following muscles could have been injured in the patient's back?

Latissimus dorsi

A study investigated the effects of a high-sugar diet on insulin resistance in mice. Mice were fed a diet continuing 50% sugar (high-sugar diet) for six months. At the end of the study, these mice exhibited a significantly higher level of insulin resistance compared to the control group that was fed a standard diet. Researchers concluded that a high-sugar diet caused increased insulin resistance. Which of the following explanations best identifies the effect of a high-sugar diet?

Increased insulin resistance

Which of the following levels of organization is considered the simplest living unit?

Cells

Which of the following types of muscle tissue is responsible for peristalsis in the sigmoid colon?

Smooth

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

Proteins

Which of the following correctly describes the result of a P1 cross between a homozygous dominant female and a homozygous recessive male for a single gene? (Select all that apply.)

-F1 generation will result in offspring that all express the dominant phenotype

-F1 generation will result in offspring that are all heterozygous

The hip is an example of which of the following type of joints?

Ball-and-socket

Which of the following respiratory structures is affected by a disease that disrupts gas exchange, such as emphysema?

Alveoli

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

Diffusion down a concentration gradient

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?

Facilitated diffusion

Graph shown diagram looks blues

Gram-negative micrococcus

Gram-postive steptomyces

Gram-negative Lactobailus

Gram-postive Staphylococcus

Gram-positive Staphylococcus Last option

When converting a person's height from the centimeters to meters, which of the following calculations would be necessary?

Divide by 100

When a volcano erupts, its actions are similar to which of the following events?

A can of soda fizzing when it is opened.

Which of the following reactions separate polymers into monomers?

Hydrolysis

Which of the following is the point at which the nerve impulse is transferred to the target cell?

Synapse

Which of the following statements best explains how a single home can code for multiple proteins?

Alternative splicing can result in different combinations of exons from the same pre-RNA molecule

Which of the following correctly shows the order in which the filtrate moves through the structures of nephron?

proximal tubule→ loop of henle→ distal tubule→ collecting duct

Which of the following rows on the table indicates the correct phases of the solute and solvent when saltwater is made at room temperature using water and NaCl?

Row 4

Which of the following conclusions is supported by the data in the table?

Blood alcohol level is a function of body weight and number of drinks.

Which of the following best describes the function of a catalyst?

Increases reaction rate

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 indicates the function of sodium bicarbonate released by the pancreas?

Sodium bicarbonate neutralizes the acidity of chyme.

Which of the following is the primary function of red blood cells?

Carrying oxygen to other body cells

Which of the following respiratory structures is supported by the presence of hyaline cartilage rings?

Trachea

Which of the following is classified as a long bone?

Tibia

Which of the following statements explains the function of the uterus?

The uterus provides a location for a fetus to develop.

The covalent bonds between the monomers of an enzyme macromolecule are

peptide bonds.

Which of the following is the pH when the concentrations of hydrogen ions and hydroxide ions in an aqueous solution are equal?

7

Which of the following tissues would send a message to the brain indicating that someone has touched something hot?

Nervous tissue

Which of the following macromolecules serves as the primary energy storage molecule in animal cells?

Glycogen

Which of the following structure in the endocrine system is malfunctioning in a patient with type 1 diabetes?

Pancreas

which of the following codon changes represnt a slient mutation

CUC to CUG

CUC to CUG

Plant > Deer > Tiger

Which of the following is the original source of energy in the food chain above?

The photons the sun made.

Which of the following statements is true of saturated and unsaturated fats?

Unsaturated fats contain fatty acids chains with one or more double binder carbons, while the fatty acid chains of saturated fats have no double bonded carbons.

Which of the following describes how the carbonic acid bicarbonate blood buffer system responds when an alkaline substance enters the blood stream?

Hydrogen ions (H+) ions released from carbonic acid neutralizes hydroxide ions (OH-) to raise blood pH.

Which of the following glands secretes follicle-stimulating hormone?

Pituitary

Which of the following cells is a leukocyte?

Monocytes

Four groups of plants were exposed to the following light intensities: 30%, 50%, 70% and 100%. All other conditions of growth were controlled across the groups. Plants in the 50% intensity showed the best growth.

Which of the following hypothesis is best supported by this experiment?

Growth improves with light intensity up to a point and then decreases.

The highest activity rate for enzymes A occurs at pH between 2 and 3

The highest activity rate for enzymes A occurs at pH between 2 and 3

Which of the following molecules are the building blocks of proteins?

Amino acids

The component of an atom that possesses relatively little mass, thus being negligible in calculating the atomic mass number, is the

Electron

A study measures the growth rates of different pant species in various light conditions. The results show: Plant X grows rapidly in blue light, Plant Y grows rapidly in red light, and Plant Z had similar growth rates in both blue and red light but grows more in white light. Which of the following is a logical conclusion about Plant Z's response to light based on the study results?

Plants Z's growth receives a more effective spectrum from white light than individual colors.

Using the equation PH = -log (H+), a solution with a (H+)= 10-9 M has a PH of which of the following?

9

Which of the following reactions occurs during thermoregulation to increase body temperature?

The body begins shivering.

Which of the following scenarios describes an ionic bond?

A bond that results in the formation of a charged atom

Which of the following is the term for the gap between two nerve cells?

A synapse

A scientist is conducting an experiment to determine the effect of different types of light on the growth of a particular plant species. They used three different groups of plants, each exposed to either fluorescent, LED, or natural sunlight, while keeping all other conditions such as soil type, water amount, and temperature constant. A fourth group is kept in complete darkness as a control. Which of the following is the independent variable in this experiment?

The type of light used

Which of the following types of membrane is associated with the skin?

Cutaneous

Amylase would be classified as which of the following?

Protein

Which of the following microscopes would be best suited for observing the surface structures of a virus particle?

Scanning electron microscope

Which of the following hormones increases the heart rate in response to stress?

Epinephrine

Which of the following is the function of pores in the nuclear membrane?

Permitting passage of molecules

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

Increase in water reabsorption in the collecting duct

Which of the following hypothesis might a scientist propose to investigate the impact of rising global temperatures on Arctic ice melt?

Melting sea ice will affect habitat space for polar bears.

Which of the following statements is correct regarding the influence of temperature on the solubility of a gas in an aqueous liquid?

Gases dissolve in inverse proportion to the temperature of the aqueous liquid.

During an observational study on birds, researchers propose that beak length affects the birds' ability to obtain food and survive. Which of the following pieces of evidence would best support the researchers' hypothesis?

Birds with longer beaks are better at accessing food hidden deep within flowers.

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

Motor neuron

Which of the following glands provides an oily substance that lubricates the hair and skin?

Sebaceous

Which of the following inner ear structures is a fluid-filled chamber that is connected to the auditory nerve?

Cochlea

Which of the following substances has the largest mass?

0.5 mL of a substance with a density of 10 g/mL

A scientist studies the effects of a new respiratory drug on oxygen levels in the blood. Which of the following conclusions is supported by the data in the table?

The experimental group showed the drug was effective at lowering blood oxygen saturation.

Which of the following is the most logical conclusions that can be made based on the data in the table?

The environment at pH 4 and pH 10 is too acidic or basic for bacteria to live.

Which of the following is the primary concern of a scientific study over the efficacy of a new medication if it is conducted by a private company that intends to market the medication?

Bias on the conclusions of the study

-The submingual route of adminstration would cause no response

-The intramuscular route of administration would have the fastest response.

-The oral capsule would cause faster response than the oral tablet

-The oral tablet would result in a faster response than the intramuscular adminstration

The intramuscular route of administration would have the fastest response. 2nd option

Both digestion and absorption happen in which of the following parts of the digestive system?

Small intestine

Which of the following body systems is the primary system involved in preventing an infection when a cut in the skin allows bacteria to enter the body?

The immune system

Which of the following describes one difference between skeletal muscles and cardiac muscles?

Cardiac muscles contain intercalated discs, whereas skeletal muscles do not.

Which of the following is the rhythmic contraction of smooth muscle that propels food through the esophagus?

Peristalsis

Which of the following body systems breaks down proteins into amino acids?

Digestive

In which of the following images are the pulomary veins correctly correctly highlighted

Yellow area

Which of the following structures serves the function of modifying and packaging proteins made by the endomembrane system?

Golgi apparatus

- The graph above shows a plot of DNA Melting temperature on the x-axis in degree celsius and the percent of GC in DNA. Which of the following is a logical conclusion based on the information is in the graph ?

-As the percent of GC content in DNA increases, its melting temperature increases.

-Melting temperature is independent of the amount of GC

- If the DNA has a high percent AT, it will melt at a higher temperature

- DNA with 60% AT content has the same melting temperature as DNA with 60c GC content

As the percent of GC content in DNA increases, its melting temperature increases.

The insulating sheath that facilitates rapid movement of the action potential down the axon is known as which of the following?

Myelin

Which of the following processes includes the synthesis of a messenger RNA molecule from a DNA segment?

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