Cellular Biology Practice Questions for 2026
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1. Which statement best describes the cellular function of ANS: C
metabolic absorption? In metabolic absorption, all cells take in and use nutrients and other substances
a. Cells can produce proteins. from their surroundings. The remaining options are not inclusive in their
b. Cells can secrete digestive enzymes. descriptions of cellular metabolic absorption.
c. Cells can take in and use nutrients. PTS: 1 DIF: Cognitive Level: Remembering
Cellscansynthesizefats
1. Where is most of a cell's genetic information, including ANS: C
RNA and DNA, contained? The nucleus contains the nucleolus, a small dense structure composed largely of
a. Mitochondria RNA, most of the cellular DNA, and the DNA-binding proteins, such as the
b. Ribosome histones, which regulate its activity. The mitochondria are responsible for cellular
c. Nucleolus respiration and energy production.
d. Lysosome Ribosomes' chief function is to provide sites for cellular protein synthesis.
Lysosomes function as the intracellular digestive system.
PTS: 1 DIF: Cognitive Level: Remembering
1. Which component of the cell produces hydrogen ANS: B
peroxide (H2O2) by using oxygen to remove hydrogen
atoms from specific substrates in an oxidative reaction? Peroxisomes are so named because they usually contain enzymes that use
a. Lysosomes oxygen to remove hydrogen atoms from specific substrates in an oxidative
b. Peroxisomes reaction that produces H2O2, which is a powerful oxidant and potentially
c. Ribosomes destructive if it accumulates or escapes from peroxisomes. Ribosomes are RNA-
d. Endosome protein complexes (nucleoproteins) that are synthesized in the nucleolus and
secreted into the cytoplasm through pores in the nuclear envelope called nuclear
pore complexes. Lysosomes are saclike structures that originate from the Golgi
complex and contain more than 40 digestive enzymes called hydrolases, which
catalyze bonds in proteins, lipids, nucleic acids, and carbohydrates. An endosome
is a vesical that has been pinched off from the cellular membrane.
PTS: 1 DIF: Cognitive Level: Remembering
, 1. Which cell component is capable of cellular ANS: D
autodigestion when it is released during cell injury? The lysosomal membrane acts as a protective shield between the powerful
a. Ribosome digestive enzymes within the lysosome and the cytoplasm, preventing their
b. Golgi complex leakage into the cytoplasmic matrix. Disruption of the membrane by various
c. Smooth endoplasmic reticulum treatments or cellular injury leads to a release of the lysosomal enzymes, which
d. Lysosomes can then react with their specific substrates, causing cellular
self-digestion. The chief function of a ribosome is to provide sites for cellular
protein synthesis. The Golgi complex is a network of flattened, smooth vesicles
and membranes often located near the cell nucleus. The smooth endoplasmic
reticulum is involved in steroid hormone production and removing toxic
substances from the cell.
PTS: 1 DIF: Cognitive Level: Remembering
1. Which cAMP-mediated response is related to ANS: C
antidiuretic hormone? Antidiuretic hormone leads to increased retention of water in the body.
a. Increased heart rate and force of contraction Epinephrine causes increases in heart rate and force of contraction. Increased
b. Secretion of cortisol cortisol secretion is due to ACTH. Breakdown of fat is due to glucagon.
c. Increased retention of water PTS: 1 DIF: Cognitive Level: Remembering
d. Breakdown of fat
1. During which phase of the cell cycle is DNA B
synthesized? The four designated phases of the cell cycle are: (1) the G1 phase (G = gap), which
a. G1 is the period between the M phase (M = mitosis) and the start of DNA synthesis;
b. S (2) the S phase (S
c. G2 = synthesis), during which DNA is synthesized in the cell nucleus; (3) the G2 phase,
d. M during which RNA and protein synthesis occurs, the period between the
completion of DNA synthesis and the next phase (M); and (4) the M phase, which
includes nuclear and cytoplasmic division.
PTS: 1 DIF: Cognitive Level: Remembering
1. What organic compound facilitates transportation ANS: C
across cell membranes by acting as receptors, transport Proteins have several functions, including acting as receptors, transport channels
channels for electrolytes, and enzymes to drive active for electrolytes, and enzymes to drive active pumps Lipids help act as the "glue"
pumps? holding cell membranes together. Proteases cause the breakdown of protein.
a. Lipids Carbohydrates are involved in cellular protection and lubrication and help
b. Proteases produce energy via oxidative phosphorylation.
c. Proteins PTS: 1 DIF: Cognitive Level: Remembering
d. Carbohydrates
Leave the first rating
Save Groups
Students also studied
Flashcard sets Study guides
Biology and Chemistry: Key Concep... El cuerpo humano (Spanish with pict... Vocabulario ¿Qué llevas? (Spanish ... El impe
156 terms 20 terms 45 terms 25 terms
ItsMeSwag Preview Cathy_Wiskes Preview Cathy_Wiskes Preview Cat
Terms in this set (42) Hide definitions
1. Which statement best describes the cellular function of ANS: C
metabolic absorption? In metabolic absorption, all cells take in and use nutrients and other substances
a. Cells can produce proteins. from their surroundings. The remaining options are not inclusive in their
b. Cells can secrete digestive enzymes. descriptions of cellular metabolic absorption.
c. Cells can take in and use nutrients. PTS: 1 DIF: Cognitive Level: Remembering
Cellscansynthesizefats
1. Where is most of a cell's genetic information, including ANS: C
RNA and DNA, contained? The nucleus contains the nucleolus, a small dense structure composed largely of
a. Mitochondria RNA, most of the cellular DNA, and the DNA-binding proteins, such as the
b. Ribosome histones, which regulate its activity. The mitochondria are responsible for cellular
c. Nucleolus respiration and energy production.
d. Lysosome Ribosomes' chief function is to provide sites for cellular protein synthesis.
Lysosomes function as the intracellular digestive system.
PTS: 1 DIF: Cognitive Level: Remembering
1. Which component of the cell produces hydrogen ANS: B
peroxide (H2O2) by using oxygen to remove hydrogen
atoms from specific substrates in an oxidative reaction? Peroxisomes are so named because they usually contain enzymes that use
a. Lysosomes oxygen to remove hydrogen atoms from specific substrates in an oxidative
b. Peroxisomes reaction that produces H2O2, which is a powerful oxidant and potentially
c. Ribosomes destructive if it accumulates or escapes from peroxisomes. Ribosomes are RNA-
d. Endosome protein complexes (nucleoproteins) that are synthesized in the nucleolus and
secreted into the cytoplasm through pores in the nuclear envelope called nuclear
pore complexes. Lysosomes are saclike structures that originate from the Golgi
complex and contain more than 40 digestive enzymes called hydrolases, which
catalyze bonds in proteins, lipids, nucleic acids, and carbohydrates. An endosome
is a vesical that has been pinched off from the cellular membrane.
PTS: 1 DIF: Cognitive Level: Remembering
, 1. Which cell component is capable of cellular ANS: D
autodigestion when it is released during cell injury? The lysosomal membrane acts as a protective shield between the powerful
a. Ribosome digestive enzymes within the lysosome and the cytoplasm, preventing their
b. Golgi complex leakage into the cytoplasmic matrix. Disruption of the membrane by various
c. Smooth endoplasmic reticulum treatments or cellular injury leads to a release of the lysosomal enzymes, which
d. Lysosomes can then react with their specific substrates, causing cellular
self-digestion. The chief function of a ribosome is to provide sites for cellular
protein synthesis. The Golgi complex is a network of flattened, smooth vesicles
and membranes often located near the cell nucleus. The smooth endoplasmic
reticulum is involved in steroid hormone production and removing toxic
substances from the cell.
PTS: 1 DIF: Cognitive Level: Remembering
1. Which cAMP-mediated response is related to ANS: C
antidiuretic hormone? Antidiuretic hormone leads to increased retention of water in the body.
a. Increased heart rate and force of contraction Epinephrine causes increases in heart rate and force of contraction. Increased
b. Secretion of cortisol cortisol secretion is due to ACTH. Breakdown of fat is due to glucagon.
c. Increased retention of water PTS: 1 DIF: Cognitive Level: Remembering
d. Breakdown of fat
1. During which phase of the cell cycle is DNA B
synthesized? The four designated phases of the cell cycle are: (1) the G1 phase (G = gap), which
a. G1 is the period between the M phase (M = mitosis) and the start of DNA synthesis;
b. S (2) the S phase (S
c. G2 = synthesis), during which DNA is synthesized in the cell nucleus; (3) the G2 phase,
d. M during which RNA and protein synthesis occurs, the period between the
completion of DNA synthesis and the next phase (M); and (4) the M phase, which
includes nuclear and cytoplasmic division.
PTS: 1 DIF: Cognitive Level: Remembering
1. What organic compound facilitates transportation ANS: C
across cell membranes by acting as receptors, transport Proteins have several functions, including acting as receptors, transport channels
channels for electrolytes, and enzymes to drive active for electrolytes, and enzymes to drive active pumps Lipids help act as the "glue"
pumps? holding cell membranes together. Proteases cause the breakdown of protein.
a. Lipids Carbohydrates are involved in cellular protection and lubrication and help
b. Proteases produce energy via oxidative phosphorylation.
c. Proteins PTS: 1 DIF: Cognitive Level: Remembering
d. Carbohydrates
