Paper 1 B1 Flashcards

1
Q

Eukaryotic cells have a nucleus?

A

Yes

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2
Q

Give an example of an prokaryotic cell

A

Bacteria

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3
Q

What is the cell wall made of

A

Cellulose

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4
Q

What is in the permanent vacuole

A

Cell sap

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5
Q

Where does photosynthesis happen in animal cell

A

Chloroplast

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6
Q

3 similarities with animal and plant cell

A

Nucleus
Cell membrane
Mitochondria

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7
Q

2 examples of specialised cells

A

Tail on the sperm
Nerve cells are long to cover more distance

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8
Q

What part of a cell contains chromosomes

A

Nucleus

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9
Q

What do chromosomes carry

A

Genes

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10
Q

What is mitosis

A

Cells divide into 2

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11
Q

What are cells not specialised called?

A

Stem cells

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12
Q

What is diffusion

A

Movement of particles high concentration to low concentration

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13
Q

What is the job of the cell membrane

A

Controlled what goes in and out of the cells

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14
Q

What is osmosis

A

Movement of water molecules from less concentrated to more concentrated

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15
Q

What is active transport

A

Substances absorbed from low concentration to a higher concentration

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16
Q

How do humans use active transport

A

Absorb nutrients from food

17
Q

Do single celled organisms have a small surface area

A

No

18
Q

Do multicellular organisms have a large surface area compared to their volume

A

No , smaller

19
Q

Where does gas exchange happen

A

Alveoli into capillaries

20
Q

What gives the small intestine a big surface area

A

Villi

21
Q

What three things to plant cells have the animal cells don’t?

A

Cell wall
Vacuole
Chloroplasts