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Biology > Cells > Flashcards

Cells Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What are the two main types of cell recognised by their structure?

A

Prokaryotic

Eukaryotic

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2
Q

What does the nucleus do?

A

Controls the cell, contains the genetic information

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3
Q

What does cytoplasm do?

A

Where chemical reactions take place

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4
Q

What does cell membrane do?

A

Controls what substances go in and out of the cell

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5
Q

What does chloroplast do?

A

Contains a green substance where photosynthesis takes place

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6
Q

What does the cell wall do

A

Made of cellulose, gives the cell structure and support

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7
Q

What do ribosomes do?

A

Where protein synthesis takes place. (Where protein is made)

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8
Q

What happens in mitochondria?

A

Where aerobic respiration takes place

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9
Q

Are we multicellular or unicellular?

A

Multicellular - we’re made up of around 200 different types of cell. They’re known as animal cells

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10
Q

What does the vacuole do?

A

Contains a liquid called cell spa that keeps the cell firm

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11
Q

What do you have to do to convert cm to mm?

A

x10

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12
Q

What do you have to do to convert mm to micrometer?

A

x1000

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13
Q

What do you do to convert micrometer to nanometer

A

x1000

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14
Q

What is magnification?

A

The number of times bigger the image looks compared to the real object.

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15
Q

What is the real object?

A

The specimen you out under the microscope.

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16
Q

What is the image?

A

What you see then you look through the microscope. The image of the real object appears magnified.

17
Q

What is resolution

A

Resolving power - the ability of a microscope or telescope to measure angular separation. (How much detail can be generated by the microscope)

18
Q

What is the equation for magnification?

A

Magnification = size of image / size of real object

19
Q

Is prokaryotic unicellular or multicellular? How old is it?

A

Unicellular

Around 4,000,000,000 years old

20
Q

What is the nucleoid?

A

Where DNA is located, not a membrane bound nucleus

21
Q

What is he function of the xylem cell?

A

Used to transport water and minerals from the roots to the leaves.

22
Q

What is a stem cell?

A

A stem cell is a cell that has not yet become specialised yet.

23
Q

Where does an embryonic stem cell come from?

A

These come from a developing embryo- usually discarded after IVP

24
Q

Name two types in stem cell

A

Adult and embryonic stem cells

25
Q

What is the most useful type of stem cell?

A

Embryonic stem cells are the most useful because they can be used for anything, adult stem cells can’t

26
Q 
What does
G
R
R
stand for in mitosis?
A

G:growth
R:
R:

Biology (2 decks)

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