Which statement is not true of prokaryotic and eukaryotic cell walls?a)They are

Question

Which statement is not true of prokaryotic and eukaryotic cell walls?a)They are both composed primarily of the carbohydrate cellulose.b)They are both external to the cell membrane.c)Both are highly permeable to molecules, and not selectively permeable like the plasma membrane.d)Some bacterial cell walls are toxic, whereas plant cell walls are not.

6.Which structure attaches the prokaryotic cell to other cells or surfaces?a)Pili.b)Flagella.c)Capsule.d)Nucleoid.

7.Which structure is composed of the highly condensed, circular, prokaryotic chromosome?a)Pili.b)Flagella.c)Capsule.d)Nucleoid.

8.Which statement is not true of prokaryotes?a)They are less complex than eukaryotic cells.b)They lack a true nucleus.c)In addition to the chromosome they often have additional loops of DNA called plasmids.d)Photosynthetic bacteria may have sheets of internal plasma membranes.e)They tend to be as large as eukaryotic cells, 100um is a typical size.

9.What structure must be present for a cell to be considered a eukaryote?a)Cell wall.b)Cell membrane.c)Nucleus.d)Ribosome.e)Photosynthetic membranes

Question 101 pts

If a cell is metabolically very active, requiring it to process and use a great deal of energy, which organelle would be abundant in the cytoplasm?

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Question 111 pts

Which statement is not true?

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Question 121 pts

Which of the following is not found within the nuclear envelope?

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Question 131 pts

Which statement is not true of the cytoskeleton?

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Question 141 pts

Which of the following lacks a double plasma membrane, i.e. two separate bilipid membranes?

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Question 151 pts

Which of the following is not found inside the cell membrane?

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Question 161 pts

Where would one not encounter ribosomes in a cell?

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Question 171 pts

The liver is an organ that functions to detoxify body fluids of poisonous chemicals (like ethyl alcohol). What organelle within liver cells helps it to accomplish this function?

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Question 181 pts

The cell walls of what type of organism contain the chemical chitin.

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Question 191 pts

What organelle produces lysosomes?

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Question 201 pts

What structure is a large vacuole that lends internal support to plant cells when hydrated?

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Question 211 pts

Which statement is not true of plastids (chloroplasts, chromoplasts and leukoplasts)?

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Question 221 pts

Which of the following is not associated with eukaryotic cells?

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Question 231 pts

Which paired items are structurally identical to one another?

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Question 241 pts

Which statement is not true?

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Question 251 pts

Which structure is not found in plant cells?

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Question 261 pts

Which of the following is not found in animal cells?

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Question 271 pts

Which structure is found at the base of eukaryotic flagella and cilia and play a role in control of these structures?

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Question 281 pts

What statement is not true of cell fractionation?

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Question 291 pts

Which statement is not true?

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Question 301 pts

Which statement is not true of cells and cell size?

Explanation / Answer

6. Option A is correct. Pili attaches the prokaryotic cell to other cells or surfaces.

7. Option D is correct. Nucleoid is composed of the highly condensed, circular, prokaryotic chromosome.

9. Option C is correct. Nucleus must be present for a cell to be considered a eukaryote.

101. Option A is correct. If a cell is metabolically very active, requiring it to process and use a great deal of energy, mitochondria would be abundant in the cytoplasm.

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