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Biology > Paper 1 B1 - Cell biology > Flashcards

Paper 1 B1 - Cell biology Flashcards

1
Q

2 types of cells?

A

Prokaryotic
Eukaryotic

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2
Q

What are eukaryotic cells?

A

Complex cells found in all animal and plant cells

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3
Q

What are prokaryotic cells?

A

Smaller and simpler cells
E.g. Bacteria

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4
Q

Name all the different parts of an animal cell?

A

Nucleus
Cytoplasm
Cell membrane
Mitochondria
Ribosomes

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5
Q

Name all the different parts the plant cell does have that the animal cell doesn’t?

A

Cell wall
Vacuole
Chloroplasts

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6
Q

What does the nucleus do?

A

Contains genetic material

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7
Q

What is the cytoplasm?

A

gel like substance that contains enzymes

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8
Q

What does the cell membrane do?

A

controls what goes in and out the cell

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9
Q

What does the Mitochondria do?

A

where aerobic respiration takes place

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10
Q

What does the ribosome do?

A

where proteins are made

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11
Q

What does the cell wall do?

A

supports and strengthens cell

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12
Q

What is the vacuole?

A

contains cell sap

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13
Q

What does the chloroplast do?

A

where photosynthesis occurs

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14
Q

How to calculate magnification of an image?

A

Image size / real size = magnification

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15
Q

Name all 6 specialised cells?

A

Sperm cells
Nerve cells
Muscle cells
Root hair cells
Phloem cells
Xylem cells

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16
Q

What ways is the sperm cell specialised?

A

Long tail and streamlined head to help it swing to the egg

17
Q

What way is the nerve cell specialised?

A

Carries electrical signals

18
Q

What way is the muscle cell specialised?

A

Contracts quickly
Contains lots of mitochondria to generate energy

19
Q

What way is the root hair cell specialised?

A

Big surface area for absorbing water and mineral ions from soil

20
Q

What way are phloem and xylem cells specialised?

A

Transports food and water around plants

21
Q

What is mitosis?

A

cell division that results in two daughter cells each having the same number of chromosomes as parents

22
Q

What is diffusion?

A

SPREADING OUT of particles from an area of HIGH CONCENTRATION to an area of LOWER CONCENTRATION

23
Q

what is osmosis?

A

Movement of water molecules across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration

24
Q

What is active transport?

A

movement of ions or molecules across a cell membrane into a region of higher concentration

25
Q

Name all 5 parts of the lungs used in gas exchange?

A

Capillary network
Bronchiole
Small artery
Alveoli
Small vein

Biology (4 decks)

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