Cells, Tissues and Organs: Cell Structure Flashcards

1
Q

What are all living things made out of?

A

cells

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2
Q

What type of microscopes are used to magnify x1000?

A

electron microscopes

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3
Q

What are organelles?

A

components of cells

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4
Q

What organelles do human and animal cells have?

A
  • nucleus
  • cytoplasm
  • cell membrane
  • ribosomes
  • mitochondria
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5
Q

What is the function of the nucleus?

A

contains genetic material which control the activities of the cell

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6
Q

What is the function of the cytoplasm?

A

place where chemical reactions occur

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7
Q

What is the function of cell membrane?

A
  • selectively permeable

- controls movement of substances in and out of cells

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8
Q

What is the function of mitochondria?

A

site of aerobic respiration

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9
Q

What is the function of ribosomes?

A

site of protein synthesis

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10
Q

What organelles do plant and algal cells have?

A
  • cellulose cell wall
  • chloroplasts
  • permanent vacuole
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11
Q

What is the function of cell wall?

A

strengthen cell

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12
Q

What is the function of chloroplasts?

A
  • contain chlorophyll for photosynthesis

- absorb light energy to make food

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13
Q

What is the function of permanent vacuole?

A
  • contains cell sap (water and minerals)

- gives support

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14
Q

What type of micro-organisms are bacteria and yeast?

A

single celled

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15
Q

What organelles do bacteria not/have?

A
  • cytoplasm
  • cell membrane
  • cell wall
  • dont have nucleus but contains genetic material
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16
Q

What organelles do yeast have?

A
  • nucleus
  • cytoplasm
  • cell membrane
  • cell wall
17
Q

What happens when bacteria multiply?

A

they form colonies

18
Q

what type of cells require lots of mitochondria?

A
  • muscle cell
  • sperm cell
    (cells that require a lot of energy)
19
Q

what type of cells require lots of ribosomes?

A

cells which produce proteins

- gland cells (produce enzymes

20
Q

How are neurons specialised?

A

to carry impulses from receptors to the CNS