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biology > cell wall > Flashcards

cell wall Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is the primary function of the cell wall?

A

To provide structural support and protection for the cell.

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2
Q

True or False: Animal cells have cell walls.

A

False

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3
Q

Fill in the blank: The cell wall is found in ________ cells.

A

Plant

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4
Q

What is the main component of plant cell walls?

A

Cellulose

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5
Q

What is the role of the middle lamella in the cell wall?

A

To cement adjacent plant cells together.

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6
Q

True or False: Fungi have cell walls made of chitin.

A

True

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7
Q

What is the function of the cell wall in bacteria?

A

To protect the cell from osmotic lysis.

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8
Q

Fill in the blank: The cell wall of bacteria is composed of ________.

A

Peptidoglycan

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9
Q

What is the outermost layer of the Gram-positive bacterial cell wall?

A

Teichoic acid

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10
Q

What is the function of the cell wall in archaea?

A

To maintain cell shape and resist osmotic pressure.

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11
Q

True or False: Archaeal cell walls contain peptidoglycan.

A

False

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12
Q

Fill in the blank: The cell wall of archaea is composed of ________.

A

Pseudopeptidoglycan

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13
Q

What is the purpose of the S-layer in archaeal cell walls?

A

To provide additional protection and structural support.

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14
Q

What is the role of the glycocalyx in the cell wall of some prokaryotes?

A

To help the cell adhere to surfaces and protect against desiccation.

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15
Q

Fill in the blank: The cell wall of algae is composed of ________.

A

Cellulose or other polysaccharides

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16
Q

True or False: The cell walls of diatoms are composed of silica.

A

True

17
Q

What is the function of the cell wall in protozoa?

A

To provide shape and protection.

18
Q

Fill in the blank: The cell wall of protozoa is composed of ________.

A

Protein or chitin

19
Q

What is the function of the pellicle in the cell wall of protozoa?

A

To provide flexibility and support.

20
Q

True or False: The cell walls of oomycetes are made of cellulose.

A

False

21
Q

Fill in the blank: The cell wall of oomycetes is composed of ________.

A

Cellulose and glucans

22
Q

What is the function of the cell wall in yeast cells?

A

To maintain cell shape and protect against environmental stresses.

23
Q

True or False: Yeast cell walls contain chitin.

A

True

24
Q

Fill in the blank: The cell wall of yeast is composed of ________.

A

Glucans and chitin

25
Q

What is the function of the periplasmic space in bacterial cell walls?

A

To contain enzymes involved in nutrient processing and cell wall synthesis.

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