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Exam 4: A Tour of the Cell

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Question 31

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The function of chloroplasts is

A) cellular respiration.
B) lipid synthesis.
C) photosynthesis.
D) intracellular digestion.

E) A) and D)
F) A) and C)

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Question 32

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Which of the following structures is exclusively associated with prokaryotic cells?

A) membrane-bound nucleus
B) nucleoid
C) chromosome
D) ribosomes

E) A) and B)
F) B) and D)

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Question 33

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Secretory proteins are

Much of the intracellular structure of a eukaryote cell is involved in protein synthesis. The figure shows the amounts of protein in cells at different parts of the cell cycle between two cell divisions. G₁ is a stage just after the cell has divided, and G₂ is the stage just before the cell divides again. S is a stage when the cell is synthesizing material such as DNA, mitochondria, and other organelles. -Most of the protein measured in the cells was likely synthesized by

Unlike animal cells, plant cells have ________ and ________. Unlike plant cells, animal cells have ________.

A manufacturing company dumps its wastes into a nearby pond. One of the wastes is found to paralyze the contractile vacuoles of certain protists. A biologist looking at individual samples of these organisms taken from the pond would find that they

After reading the paragraph below, answer the questions that follow. The skin is the body's largest organ. It's made up of many different types of cells. Oils, produced by the sebaceous glands, prevent the skin from drying and splitting. The protein melanin, produced by melanocytes in the epidermis, protects the skin from the harmful effects of ultraviolet radiation. Sweat, released through ducts to the skin surface, helps to cool the body. The types of cells that produce these compounds have different numbers of specific organelles, depending on their function. -The oil from the sebaceous glands is produced by which of the following cell organelles?

The endomembrane system includes all of the following organelles except the

The function of mitochondria is

Which of the following statements regarding the endomembrane system is false?

A scanning electron microscope is used to study ________, whereas a transmission electron microscope is used to study ________.

Resolution is the

According to this figure, which of the following are large enough to see in the light microscope?

________ cells lack a membrane-enclosed nucleus.

After reading the paragraph below, answer the questions that follow. Studies of the endomembrane system often involve the use of a protein that can emit a green fluorescence (glow) . A researcher wants to make a video of cell behavior, so she initially tags the outer nuclear envelope of a cell with the fluorescent tag and records for several hours. Later, she sees that the tag is part of a secretory vesicle. -The fluorescent tag likely did not become incorporated into which of the following organelles?

Which of the following cell structures are associated with the breakdown of harmful substances?

Skin cells are fastened into strong sheets by

Which of the following statements regarding cells is false?

A basal body is

The endosymbiosis hypothesis proposes that