Biology- Chapter 6

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問題一覧

Which of the following structures is independent of the endomembrane system in eukaryotic cells?

Chloroplast

Which of the following parameters is most likely to limit the maximum size of a cell?

The ratio of surface area to volume of cytoplasm

A cell with a predominance of rough endoplasmic reticulum is most likely involved in which of the following processes?

Producing large quantities of proteins for secretion

A characteristic 9 + 2 arrangement of microtubules, consisting of nine doublet microtubules surrounding a pair of single microtubules describes the ultrastructure of which of the following cellular structures?

Eukaryotic flagella and motile cilia

Which of the following molecules is required by cells to assemble cilia or flagella?

tubulin

Which of the following organelles is primarily responsible for the production and modification of polysaccharides that will be secreted?

Golgi apparatus

Which cell would be best for studying lysosomes?

phagocytic white blood cell

When H. V. Wilson exposed two species of differently pigmented sponges to a chemical that disrupted intercellular junctions, the cells of the sponges dissociated. Wilson then removed the chemical that caused dissociation and mixed the cells of the two species. He found that the sponges reassembled and that the cells from one species did not interact or form associations with the cells of the other species. Which of the following statements provides the most plausible explanation for the results of this experiment?

The molecules responsible for cell-cell adhesion (cell junctions) differed between the two species of sponge.

Which of the following structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?

plasmodesmata

Disruption of the function of which of the following organelles would result in a dramatic decrease in ATP synthesis in eukaryotic cells?

mitochondrion

An organelle in a newly discovered cell contains thylakoids, DNA, and ribosomes. These findings suggest that this organelle is most likely similar to which of the following organelles?

Chloroplasts

Peroxisomes in liver cells detoxify alcohol by removing hydrogen atoms and combining them with which of the following molecules?

with oxygen molecules to generate hydrogen peroxide

Which of the following statements best describes some aspect of cytoskeleton structure or function in eukaryotic cells?

Movement of cilia and flagella is the result of motor proteins causing microtubules to move relative to each other.

Which of the following statements best describes one major difference between prokaryotic cells and eukaryotic cells?

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Which of the following structures is common to plant and animal cells?

mitochondrion

Which structure is part of the endomembrane system?

Golgi apparatus

A newly synthesized protein destined for secretion from a eukaryotic cell will generally follow which of the pathways listed below?

rough ER → lysosome → transport vesicle → plasma membrane

A cell with a predominance of smooth endoplasmic reticulum is most likely specialized to carry out which of the following processes?

synthesis of large quantities of lipids

An early step in the evolution of eukaryotic cells most likely involved which of the following events?

endosymbiosis of an oxygen-using bacterium in a larger bacterial host cell-the endosymbiont evolved into mitochondria

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quiz 1 for biochem

quiz 1 for biochem

問題一覧

Which of the following structures is independent of the endomembrane system in eukaryotic cells?

Chloroplast

Which of the following parameters is most likely to limit the maximum size of a cell?

The ratio of surface area to volume of cytoplasm

A cell with a predominance of rough endoplasmic reticulum is most likely involved in which of the following processes?

Producing large quantities of proteins for secretion

Eukaryotic flagella and motile cilia

Which of the following molecules is required by cells to assemble cilia or flagella?

tubulin

Which of the following organelles is primarily responsible for the production and modification of polysaccharides that will be secreted?

Golgi apparatus

Which cell would be best for studying lysosomes?

phagocytic white blood cell

The molecules responsible for cell-cell adhesion (cell junctions) differed between the two species of sponge.

Which of the following structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?

plasmodesmata

Disruption of the function of which of the following organelles would result in a dramatic decrease in ATP synthesis in eukaryotic cells?

mitochondrion

An organelle in a newly discovered cell contains thylakoids, DNA, and ribosomes. These findings suggest that this organelle is most likely similar to which of the following organelles?

Chloroplasts

Peroxisomes in liver cells detoxify alcohol by removing hydrogen atoms and combining them with which of the following molecules?

with oxygen molecules to generate hydrogen peroxide

Which of the following statements best describes some aspect of cytoskeleton structure or function in eukaryotic cells?

Movement of cilia and flagella is the result of motor proteins causing microtubules to move relative to each other.

Which of the following statements best describes one major difference between prokaryotic cells and eukaryotic cells?

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Which of the following structures is common to plant and animal cells?

mitochondrion

Which structure is part of the endomembrane system?

Golgi apparatus

A newly synthesized protein destined for secretion from a eukaryotic cell will generally follow which of the pathways listed below?

rough ER → lysosome → transport vesicle → plasma membrane

A cell with a predominance of smooth endoplasmic reticulum is most likely specialized to carry out which of the following processes?

synthesis of large quantities of lipids

An early step in the evolution of eukaryotic cells most likely involved which of the following events?

endosymbiosis of an oxygen-using bacterium in a larger bacterial host cell-the endosymbiont evolved into mitochondria