TEAS-SECTION-2 Online Practice Questions and Answers

What is the longest phase of the cell cycle?

A. mitosis

B. cytokinesis

C. interphase

D. metaphase

What is the possibility that the offspring produced will have brown eyes? B = alleles for brown eyes; g = alleles for green eyes

A. 100%

B. 75%

C. 50%

D. 25%

Which group of major parts and organs make up the immune system?

A. nose, trachea, bronchial tubes, lungs, alveolus, and diaphragm

B. heart, veins, arteries, and capillaries

C. brain, spinal cord, and nerve cells

D. lymphatic system, spleen, tonsils, thymus, and bone marrow

The rate of a chemical reaction depends on all of the following except __________.

A. amount of mass lost

B. presence of catalysts

C. temperature

D. surface area

Prokaryotic and eukaryotic cells are similar in having which of the following?

A. Presence of a nucleus

B. Protein-studded DNA

C. Integral membrane proteins in the plasma membrane

D. Membrane-bound organelles

Which of these statements regarding the "oxygen debt" created during heavy exercise is true?

A. Oxygen debt is created due to build-up of acetic acid in the muscles, which needs a high level of oxygen to be oxidized.

B. Oxygen debt is created due to build-up of lactic acid in the muscles, which needs a high level of oxygen to be oxidized.

C. Oxygen debt is created due to build-up of lactic acid in the liver, which needs a high level of oxygen to be stored.

D. Oxygen debt is created due to build-up of lactic acid in the muscles, which needs a high level of carbon dioxide to be oxidized.

Which of these statements regarding facilitated diffusion across a cell membrane is true?

A. It is a kind of active transport (i.e., does directly use energy such as hydrolysis of ATP) that requires protein pumps.

B. It is a kind of passive transport (i.e., does not directly use energy such as hydrolysis of ATP) that does not require transmembrane/carrier proteins.

C. It is a kind of passive transport (i.e., does not directly use energy such as hydrolysis of ATP) that requires transmembrane/carrier proteins.

D. It is a kind of active transport (i.e., does directly use energy such as hydrolysis of ATP) that requires transmembrane/carrier proteins.

The law of conservation of mass states that __________.

A. The total mass of all products of a chemical reaction is independent of the total mass of all the reactants. They are not related.

B. The total mass of all products of a chemical reaction is equal to the total mass of all the reactants.

C. The total mass of all products of a chemical reaction is more than the total mass of all the reactants.

D. The total mass of all products of a chemical reaction is less than the total mass of all the reactants, because some mass coverts to energy during reaction.

A man of mass 60 kg, runs up the stairs of total height 5 meters in 4 seconds.

How much power is exerted by the man?

A. 800W

B. 750 W

C. 250W

D. 1000W

Pea plants can self-pollinate (sperm and eggs both come from the same plant) or they can cross-pollinate (sperm and eggs come from different plants). Gregor Mendel used this to study heredity. He found that if he took a plant that only produced yellow peas and crossed it with a plant that only produced green peas, all the offspring would only produce yellow peas. On the other hand, if he left the offspring (all yellow pea plants) alone and let them self-pollinate, then the second generation had a ratio of 3:1 yellow to green pea plants. Thus, Mendel could demonstrate that some traits are "dominant" while others are "recessive."

Referring to this passage, what could Gregor Mendel conclude from the result of his experiment with green and yellow pea plants?

A. Green peas are a recessive trait.

B. Pea plants have carbohydrates, like starch, that are coded for by their DNA.

C. Inbreeding of pea plants causes mutations.

D. All traits come in pairs and there is always a dominant trait and a recessive trait.