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Science 7 > Cells > Flashcards

Cells Flashcards

1
Q

Who discovered bacteria?

A

Leeuwenhoek.

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2
Q

Who concluded that all plant parts were mad if cells?

A

Schleiden.

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3
Q

Who concluded that all animal tissue was made of cells?

A

Schwann.

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4
Q

Who said that all cells come from existing cells?

A

Virchow.

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5
Q

What kind of cells have cell walls?

A

Plants and fungi.

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6
Q

What are the three parts to the cell theory?

A

All organisms are made of cells.
The cell is the basic unit of all living things.
All cells come from preexisting cells.

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7
Q

Is a chicken egg a cell?

A

Yes.

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8
Q

Why can a chicken egg grow so large?

A

It does not need to take in nutrients.

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9
Q

What limits cells to a very small size?

A

The surface area to volume ratio.

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10
Q

How can you calculate the surface area to volume ratio?

A

Calculate the surface area, calculate the volume, then divide the surface area over the volume.

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11
Q

What part of the cell gives support to the cell?

A

Cell wall

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12
Q

What does the cell membrane do?

A

Controls what enters and exits the cell

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13
Q

What in a cell supports and protects the organelles?

A

The cytoplasm.

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14
Q

What controls the cell and holds the DNA?

A

The nucleus.

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15
Q

What does the nucleolus do?

A

Makes ribosomes.

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16
Q

What does the vacuole do?

A

Stores food and water in plants.

17
Q

What creates food for plants in sunlight or uses photosynthesis?

A

Chloroplast.

18
Q

What do Ribosomes do?

A

Make proteins

19
Q

What does mitochondria do?

A

Produces the cell’s energy.

20
Q

What takes out the wast in a cell?

A

The Lysosome.

21
Q

Is the cell wall in plants or animals?

A

Plants

22
Q

Is the cell membrane in plants or animals?

A

Both.

23
Q

Is cytoplasm in plants or animals?

A

Both.

24
Q

Is the nucleus in plants or animals?

A

Both.

25
Q

Is the nucleolus in plants or animals?

A

Both.

26
Q

Are ribosomes in plants or animals?

A

Both.

27
Q

Are mitochondria in plants or animals?

A

Both.

28
Q

Are vacuoles in plants or animals?

A

Plants.

29
Q

Is chloroplast in plants or animals?

A

Plants.

30
Q

Are lysosomes in plants or animals?

A

Both.

31
Q

What are closely stacked, flattened sacks?

A

Chloroplast.

32
Q

What provides support for the cell and has two subparts?

A

Cytoskeleton.

33
Q

What digests material?

A

Lysosomes.

34
Q

What produces energy for the cell?

A

Mitochondria.

35
Q

Name two storage organelles.

A

Vacuoles and vesicles.

36
Q

Who was the first person to describe cells?

A

Hooke

Science 7 (9 decks)

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