,
,C) forming tendons and the fascia that covers muscles.
D) filling spaces between tissues to keep organs in place.
10. Although all muscle tissue cells have some similarities, smooth muscle
(also known as involuntary muscle) differs by:
A) having dense bodies attached to actin filaments.
B) containing sarcomeres between Z lines and M bands.
C) having rapid contractions and abundant cross-striations.
D) contracting in response to increased intracellular calcium.
11. Which of the following aspects of the function of the nucleus is performed
by ribosomal RNA (rRNA)?
A) Copying and carrying DNA instructions for protein synthesis
B) Carrying amino acids to the site of protein synthesis
C) Providing the site where protein synthesis occurs
D) Regulating and controlling protein synthesis
12. Breakdown and removal of foreign substances and worn-out cell parts
are performed by which of the following organelles?
A) Lysosomes
B) Golgi apparatus
C) Ribosomes
D) Endoplasmic reticulum (ER)
13. Impairment in the function of peroxisomes would result in:
A) inadequate sites for protein synthesis.
B) an inability to transport cellular products across the cell membrane.
C) insufficient energy production within a cell.
D) accumulation of free radicals in the cytoplasm.
14. After several months of trying to conceive, a couple is undergoing fertility
testing. Semen analysis indicates that the mans sperm have decreased
motility, a finding that is thought to underlie the couples inability to become
pregnant.
, Which of the following cellular components may be defective within the mans
sperm?
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
15. Which of the following statements is true of glycolysis?
A) Glycolysis requires oxygen.
B) Glycolysis occurs in cells without mitochondria.
C) Glycolysis provides the majority of the bodys energy needs.
D) Glycolysis produces energy, water, and carbon dioxide.
16. Which of the following membrane transport mechanisms requires the
greatest amount of energy?
A) Facilitated diffusion
B) Passive transport
C) Vesicular transport
D) Simple diffusion
17. A male patient with a diagnosis of type 1 diabetes mellitus is experiencing
hyperglycemia because he lacks sufficient insulin to increase the availability
of glucose transporters in his cell membranes. Consequently, his cells lack
intracellular glucose and it accumulates in his blood. Which of the following
processes would best allow glucose to cross his cell membranes?
A) Facilitated diffusion
B) Simple diffusion
C) Secondary active transport
D) Endocytosis
18. Which of the following statements is true of skeletal muscle cells?
A) Skeletal muscle cells each have an apical, lateral, and basal surface.
,C) forming tendons and the fascia that covers muscles.
D) filling spaces between tissues to keep organs in place.
10. Although all muscle tissue cells have some similarities, smooth muscle
(also known as involuntary muscle) differs by:
A) having dense bodies attached to actin filaments.
B) containing sarcomeres between Z lines and M bands.
C) having rapid contractions and abundant cross-striations.
D) contracting in response to increased intracellular calcium.
11. Which of the following aspects of the function of the nucleus is performed
by ribosomal RNA (rRNA)?
A) Copying and carrying DNA instructions for protein synthesis
B) Carrying amino acids to the site of protein synthesis
C) Providing the site where protein synthesis occurs
D) Regulating and controlling protein synthesis
12. Breakdown and removal of foreign substances and worn-out cell parts
are performed by which of the following organelles?
A) Lysosomes
B) Golgi apparatus
C) Ribosomes
D) Endoplasmic reticulum (ER)
13. Impairment in the function of peroxisomes would result in:
A) inadequate sites for protein synthesis.
B) an inability to transport cellular products across the cell membrane.
C) insufficient energy production within a cell.
D) accumulation of free radicals in the cytoplasm.
14. After several months of trying to conceive, a couple is undergoing fertility
testing. Semen analysis indicates that the mans sperm have decreased
motility, a finding that is thought to underlie the couples inability to become
pregnant.
, Which of the following cellular components may be defective within the mans
sperm?
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
15. Which of the following statements is true of glycolysis?
A) Glycolysis requires oxygen.
B) Glycolysis occurs in cells without mitochondria.
C) Glycolysis provides the majority of the bodys energy needs.
D) Glycolysis produces energy, water, and carbon dioxide.
16. Which of the following membrane transport mechanisms requires the
greatest amount of energy?
A) Facilitated diffusion
B) Passive transport
C) Vesicular transport
D) Simple diffusion
17. A male patient with a diagnosis of type 1 diabetes mellitus is experiencing
hyperglycemia because he lacks sufficient insulin to increase the availability
of glucose transporters in his cell membranes. Consequently, his cells lack
intracellular glucose and it accumulates in his blood. Which of the following
processes would best allow glucose to cross his cell membranes?
A) Facilitated diffusion
B) Simple diffusion
C) Secondary active transport
D) Endocytosis
18. Which of the following statements is true of skeletal muscle cells?
A) Skeletal muscle cells each have an apical, lateral, and basal surface.
