210. The mass number of an atom is the number of A. protons in the atom. B. neut

Question

210. The mass number of an atom is the number of A. protons in the atom. B. neutrons in the atom. C. protons and electrons in the atom D. electrons and neutrons in the atom. E. neutrons and protons in the atom. 11. Which of the following is mismatched? A. aplastic anemia-bone marrow fails to produce erythrocytes B. hemolytic anemia - increased destruction of erythrocytes C. pernicious anemia- loss of blood from the body D. iron deficiency anemia - lack of iron absorption for erythropoiesis E. hemorrhagic anemia - loss of blood from the body 12. Consider the following structural levels: chemical, organ, tissue, cell, and organ system. Which level encompasses the other four? A. tissue B. organ system C. organ D. chemical E. cell 13. A red blood cell that is placed in a hypertonic solution A. gains water. B. loses water. C. floats. D. ruptures. E. neither gains nor loses water 14. What type of connective tissue is found between the vertebrae? A. hyaline cartilage B. fibrocartilage C. elastic cartilage D. dense irregular elastic tissue E. dense regular collagenous tissue

Explanation / Answer

10. E.number of neutron and number of proton

MASS NUMBER = number of protons + number of neutrons

11C. Pernicious anemia-------loss of blood from the body.

Pernicious anemia is an  autoimmune disorder, it is caused by lower vitamin B-12  absorption capacity of gastrointestinal tract.

12 B organ system

Among all of these organ system is the highest structral organisational level, which is formed by combinig of organ, performing similiar function.

13. B losses water

Hypertonic solution contains less amount of water, it is more concentrated. Water moves from higher concentration to lower concentration, so it moves from the RBC molecule to the solution and RBC molecule will shrink.

14.B. fibrocartilage.

fibrocartilage is found in between the intervertebral discs.

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