B1 Microscopes and cells Flashcards

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1
Q

The maximum magnification you can get with standard student microscope is…

A

X 400

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2
Q

If the eyepiece of a microscope has a magnification of X 10 and the objective lens has a magnification of X 20, the total magnification is…

A

X 200

because you multiply the two magnifications to get the total

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3
Q

To make the specimen (the thing you are viewing) easy to see, you should…

A

Make sure it is thin

Place it on a glass slide

Use a stain

Flatten it with a coverslip

Use plenty of light

Adjust the focus

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4
Q

To stain the starch inside a cell, use…

A

Iodine Solution, which turns from yellow to…

black

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5
Q

To stain the nucleus of a cell, use…

A

Methylene Blue

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6
Q

If a waterflea measuring 4 mm was drawn to fill an A4 sized page, is the scale X 70 or X 0.07?

A

X 70

because it has been drawn 70 times bigger than normal

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7
Q

If a giraffe measuring 6 m was drawn to fill an A4 sized page, is the scale X 50 or X 0.05?

A

X 0.05

because it has been drawn much smaller than normal

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8
Q

Name part 1 of this animal cell

A

Cell surface membrane

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9
Q

Name part 1 of this plant cell

A

Cell wall

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10
Q

What four cell parts would you find in both plant and animal cells?

A

Cell surface membrane

Nucleus

Mitochondria

Cytoplasm

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11
Q

What three cell parts are only found in plant cells?

A

Cell wall

Vacuole

Chloroplasts

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12
Q

What is the function of the nucleus? (labelled 4 in this diagram)

A

stores the genes which control the production of protein

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13
Q

What is the function of the cytoplasm? (labelled 4 in this diagram)

A

watery contents of the cell where life processes take place

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14
Q

List these in order of size starting with the smallest: tissue, cell, organ, nucleus

A

Nucleus Cell Tissue (cells joined together) Organ (tissues joined together)

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15
Q

What is the function of the cell surface membrane? (labelled 1 in this diagram)

A

surrounds the cytoplasm and controls what goes in and out of the cell

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16
Q

What is the function of the mitochondria? (labelled 5 in this diagram)

A

release energy from food for the cell

17
Q

What is the function of the cell wall? (labelled 1 in this diagram)

A

provides strength and structure for a plant cell

18
Q

What is the function of the chloroplasts? (labelled 7 in this diagram)

A

absorb light to make food in plant cells, containing a green pigment called chlorophyll which helps a process called photosynthesis take place

19
Q

What is the function of the vacuole? (labelled 6 in this diagram)

A

permanent liquid-filled section of plant cells

20
Q

List these in order of size starting with the smallest: heart, mitochondria, muscle tissue, muscle cell

A

Mitochondria

Muscle cell

Muscle tissue (made of many muscle cells)

Heart (an organ made of several types of tissue)

21
Q

Genes are made of…

A

DNA

22
Q

We inherit characteristics from our parents because they pass on their…

A

genes

23
Q

Name part 1 of this typical microscope

A

eye-piece lens

24
Q

Name part 2 of this typical microscope

A

focus knob

25
Q

Name part 3 of this typical microscope

A

objective lens

26
Q

Name part 4 of this typical microscope

A

stage

27
Q

Name part 5 of this typical microscope

A

mirror

28
Q

Name part 2 of this animal cell

A

Nucleus

29
Q

Name part 3 of this animal cell

A

Mitochondria

30
Q

Name part 4 of this animal cell

A

Cytoplasm

31
Q

Name part 2 of this plant cell

A

Cell surface membrane

32
Q

Name part 3 of this plant cell

A

Cytoplasm

33
Q

Name part 4 of this plant cell

A

Nucleus

34
Q

Name part 5 of this plant cell

A

Mitochondria

35
Q

Name part 6 of this plant cell

A

Vacuole

36
Q

Name part 7 of this plant cell

A

Chloroplasts