9. Connective tissue contains fibroblasts that are responsible for:
3i 3i 3i 3i 3i 3i 3i
A) providing a fibrous framework for capillaries.
3i 3i 3i 3i 3i
B) synthesis of collagen, elastin, and reticular fibers.
3i 3i 3i 3i 3i 3i
, C) forming tendons and the fascia that covers muscles.
3i 3i 3i 3i 3i 3i 3i
D) filling spaces between tissues to keep organs in place.
3i 3i 3i 3i 3i 3i 3i 3i
10. Although all muscle tissue cells have some similarities, smooth muscle (also
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
known as involuntary muscle) differs by:
3i 3i 3i 3i 3i
A) having dense bodies attached to actin filaments.
3i 3i 3i 3i 3i 3i
B) containing sarcomeres between Z lines and M bands. 3i 3i 3i 3i 3i 3i 3i
C) having rapid contractions and abundant cross-striations.
3i 3i 3i 3i 3i
D) contracting in response to increased intracellular calcium. 3i 3i 3i 3i 3i 3i
11. Which of the following aspects of the function of the nucleus is performed by r
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
ibosomal RNA (rRNA)? 3i 3i
A) Copying and carrying DNA instructions for protein synthesis
3i 3i 3i 3i 3i 3i 3i
B) Carrying amino acids to the site of protein synthesis 3i 3i 3i 3i 3i 3i 3i 3i
C) Providing the site where protein synthesis occurs 3i 3i 3i 3i 3i 3i
D) Regulating and controlling protein synthesis 3i 3i 3i 3i
12. Breakdown and removal of foreign substances and worn-
3i 3i 3i 3i 3i 3i 3i
out cell parts are performed by which of the following organelles?
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
A) Lysosomes
B) Golgi apparatus 3i
C) Ribosomes
D) Endoplasmic reticulum (ER) 3i 3i
13. Impairment in the function of peroxisomes would result in:
3i 3i 3i 3i 3i 3i 3i 3i
A) inadequate sites for protein synthesis. 3i 3i 3i 3i
B) an inability to transport cellular products across the cell membrane.
3i 3i 3i 3i 3i 3i 3i 3i 3i
C) insufficient energy production within a cell. 3i 3i 3i 3i 3i
D) accumulation of free radicals in the cytoplasm. 3i 3i 3i 3i 3i 3i
14. After several months of trying to conceive, a couple is undergoing fertility test
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
ing. Semen analysis indicates that the mans sperm have decreased motility, a fin
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
ding that is thought to underlie the couples inability to become pregnant.
3i 3i 3i 3i 3i 3i 3i 3i 3i 3i 3i
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