CELLS Flashcards

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1
Q

Name the 3 parts of an animal cell

A
  1. Cytoplasm
  2. Nucleus
  3. Cell membrane
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2
Q

What happens in the cytoplasm?

A

Most chemical processes take place here and are controlled by enzymes

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3
Q

What happens in the nucleus?

A

It controls what happens in the cell and carries genetic information

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4
Q

What does the cell membrane do?

A

It controls the movement of substances into and out of the cell

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5
Q

What are the 7 parts of a microscope?

A
  1. Stage
  2. Eyepiece lens
  3. Objective lens
  4. Coarse focus
  5. Lamp
  6. Fine focus
  7. Clips
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6
Q

Who was Robert Hooke?

A

An astronomer, physicist and naturalist who built and used the first microscope - he gave the name to the cell

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7
Q

How should you handle a microscope? - 3

A
  1. Carry it with one hand underneath and
  2. One hand on the arm
  3. Never touch the glass of the lenses
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8
Q

Name 3 common mistakes with a microscope

A
  1. You should have a single layer of cells not folded over
  2. Try to ensure no air is trapped between the specimen and cover slip
  3. Ensure the slide is in focus
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9
Q

Name the 6 parts of a plant cell

A
  1. Cell membrane
  2. Cytoplasm
  3. Nucleus
  4. Chloroplast
  5. Vacuole
  6. Cell wall
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10
Q

What does the chloroplast do?

A

It contains the green pigment that traps light energy for making food

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11
Q

What does the cellulose/cell wall do?

A

It gives the cell shape and support

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12
Q

What does the vacuole do? - 2

A

It contains water and sugars which are called cell sap. This gives the cell support,making it firm.

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13
Q

What solution do you drop onto your cells before putting under a microscope?

A

Iodine solution

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14
Q

Why does an onion have no chloroplast?

A

Because it grows underground and does not need to absorb light to make food

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15
Q

Name 3 things animal and plant cells have in common

A
  1. Have a nucleus
  2. Have a cell membrane
  3. Have cytoplasm
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16
Q

Name 3 differences between animal and plant cells

A
  1. Animal cells do not have a cell wall
  2. Animal cells do not have chloroplasts
  3. Animal cells do not have a large vacuole
17
Q

What is cytoplasm like?

A

Jelly like substance which can flow

18
Q

What do chloroplasts contain?

A

Chlorophyll

19
Q

What does a plant cell wall do?

A

It strengthens the cell and gives it structural support