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Biology > Cell Structures > Flashcards

Cell Structures Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is the size of a cell surface membrane ?

What is its function?

A

7 nm thick.

Partially permeable membrane, controls what comes in and out of the cell.

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2
Q

What is the size of a nucleus ?

A

5 micro meters

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3
Q

Boundary membrane if nucleus?

A

Double bound membrane organelle.

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4
Q

What is the function of the nucleus?

A

It controls cell activity as it has DNA.

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5
Q

What does the nucleolus do?

A

Produces

ribosomes

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6
Q

What does the endoplasmic reticulum?

A

Can bud off vesicles from Golgi body

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7
Q

Does the endoplasmic reticulum have a boundary membrane organelle??

A

Yes, a single one

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9
Q

What does the rough endoplasmic reticulum do?

A

Transports newly synthesized molecule around the cell

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10
Q

Function of ribosomes?

A

Protein synthesis

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11
Q

What does the Golgi body do?

A

Sorts, processes, and modifies proteins.

Produces lysosomes

Converts sugars to cell wall components

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12
Q

What is the boundary organelle of the Golgi body?

A

It is single

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13
Q

What is the size of lysosomes ?

A

0.1 to 0.5 nm

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14
Q

What is there boundary organelle of lysosomes?

A

Single

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15
Q

What is is the function of a lysosome?

A

To digest worn and unwanted bacteria

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16
Q

Size of mitochondria ?

A

1 micro meter in diameter

2-8 micro meter in length

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17
Q

Boundary organelle of mitochondria?

A

Double bound membrane organelle

18
Q

WHAT is the function of mitochondria?

A

Produce ATP in plant cells and animal cells.

19
Q

WHAT is the size of micro tubules

A

25 nm
Small
Hollow tubes

20
Q

WHAT is the function of micro tubules

A

Provide mechanical strength, shape and ability to move

Involved in cell division

21
Q

Boundary membrane organelle? (Microtubules)

A

None

22
Q

WHAT is the size of centrioles?

A

2hollow Tunes
500 nm
Placed at right angles
Each are composed of 9 triplet micro tubules

23
Q

Boundary organelle? (Centrioles!

A

None

24
Q

Function of centrioles?

A

Can act as the staring point for the growth of spindle micro tubules during cell division

25
Q

Size of chloroplasts,

A

3 - 10 micro meters

26
Q

Boundary organelle? Chloroplasts

A

Double bound membrane organelle

27
Q

Function of chloroplasts

A

Involved in photosynthesis

28
Q

Size of plasmodesmata?

A

Channels 29-40 nm wide

29
Q

Boundary organelle of plasmodesmata

A

Don’t have one

30
Q

Function of plasmodesmata?

A

Facilitate the passage of molecules

Allows molecules and ions to pass through but not organelles

31
Q

What is the size of ribosomes ?

Boundary membrane ?

A

25 nm

Do not have a membrane

Biology (9 decks)

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