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

Answer Explanation:

Plasma B cells.

Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells).

When an antigen binds to the B-cell surface, it stimulates the B cell to divide and mature into a group of identical cells called a clone.

The mature B cells, called plasma cells, secrete millions of antibodies into the bloodstream and lymphatic system.

Choice A, Natural killer cells, is not the correct answer because natural killer cells are a type of white blood cell that play a major role in the host-rejection of both tumors and virally infected cells.

Choice B, Cytotoxic T-cells, is not the correct answer because cytotoxic T-cells are a type of white blood cell that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

Choice D, Helper T-cells, is not the correct answer because helper T-cells are a type of white blood cell that play an important role in the immune system by helping other white blood cells fight infections.

Therefore, the Correct Answer is C.

Q #1: Which of the following is the function of a totipotent cell?  

A. Fights infectious diseases.

B. Aids in the maturation of sex cells.

C. Carries electrical impulses.

D. Develops into any kind of cell.

Answer Explanation

A totipotent cell can self-renew by dividing and develop into the three primary germ cell layers of the early embryo and into extra-embryonic tissues such as the placenta.

A fertilized egg is a totipotent stem cell and as such can develop into any specialized cell found in the organism.

Choice A is not correct because totipotent cells do not fight infectious diseases.

Choice B is not correct because totipotent cells do not aid in the maturation of sex cells.

Choice C is not correct because totipotent cells do not carry electrical impulses.
Q #2: 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

Answer Explanation

ff.

In this cross, both parents are homozygous recessive for the smooth leaf trait

(ff).

This means that all of their offspring will inherit two copies of the recessive allele (f) and will therefore have smooth leaves.

Choice A.

FF x FF is not correct because both parents are homozygous dominant for the fuzzy leaf trait (FF) and all of their offspring will inherit two copies of the dominant allele (F) and will therefore have fuzzy leaves.

Choice B.

Ff x Ff is not correct because both parents are heterozygous for the leaf trait (Ff) and their offspring can inherit either one dominant allele (F) or one recessive allele (f) from each parent, resulting in a 3:1 ratio of fuzzy to smooth leaves. Choice D.

Ff x ff is not correct because one parent is heterozygous for the leaf trait (Ff) while the other is homozygous recessive (ff), resulting in a 1:1 ratio of fuzzy to smooth leaves in their offspring.
Q #3: Which of the following summarizes a change that takes place as a solid turns to a liquid?  

A. Particles become less ordered.

B. Particles have a decrease in mobility.

C. Particles move closer together

D. Intermolecular forces between particles become stronger.

Answer Explanation

As a solid turns to a liquid, the particles become less ordered and more free to move around.

Choice B is not correct because particles have an increase in mobility as a solid turns to a liquid.

Choice C is not correct because particles move further apart as a solid turns to a liquid.

Choice D is not correct because intermolecular forces between particles become weaker as a solid turns to a liquid.

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

More Questions on TEAS 7 Science

Q #1: Which of the following is the function of a totipotent cell?

Answer Explanation

Q #2: 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?

Answer Explanation

Q #3: Which of the following summarizes a change that takes place as a solid turns to a liquid?

Answer Explanation

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

More Questions on TEAS 7 Science

Q #1: Which of the following is the function of a totipotent cell? &nbsp;

Answer Explanation

Q #2: 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?&nbsp; &nbsp;

Answer Explanation

Q #3: Which of the following summarizes a change that takes place as a solid turns to a liquid? &nbsp;

Answer Explanation

Free Access on TEAS 7 Exams and Study Notes

TEAS 7 Exams (Q&A)

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Q #1: Which of the following is the function of a totipotent cell?

Q #2: 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?

Q #3: Which of the following summarizes a change that takes place as a solid turns to a liquid?