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zzz > November-Cell Structure 19/10/16 > Flashcards

November-Cell Structure 19/10/16 Flashcards

1
Q

What organelles are in animal cells?

A 
Cell membrane
Cytoplasm
Nucleus
Ribosomes
Mitochondria
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2
Q

What organelles are in plant cells?

A 
Cell membrane
Cytoplasm
Nucleus
Ribosomes
Mitochondria
Chloroplast
Cellulose cell wall
Large (sap) vacuole
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3
Q

Cell membrane

A

Controls the movement of substances in and out of the cell

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4
Q

Vacuole

A

Stores sap(a solution of water, sugars, ions and other substances)

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5
Q

Nucleus

A

Controls the activities of the cell

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6
Q

Cell wall

A

Supports the cell and helps keep its shape

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7
Q

Chloroplast

A

Absorb light to make sugar in photosynthesis. Contains chlorophyll.

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8
Q

Cytoplasm

A

Where the chemical reactions take place.

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9
Q

Ribosomes

A

Site of protein synthesis

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10
Q

Mitochondria

A

Carry out aerobic respiration to release energy that the cell can use

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11
Q

How is red blood cell adapted?

A

Has a dip so it has a bigger surface to diffuse more oxygen and doesn’t have a nucleus so there’s more space to carry oxygen

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12
Q

Cells

A

Cells are the building blocks of all living organisms.

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13
Q

Tissues

A

Similar cells that do the same job and work together to make tissue

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14
Q

Organs

A

Different tissues work together to make an organ

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15
Q

Organ system

A

Organs work together to make an organ system

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16
Q

Organism

A

E.g. Homeosapiens

17
Q

Diffusion

A

Diffusion is the net movement of molecules from an area of high concentration to an area of lower concentration.

18
Q

What diffusion happens in respiration?

A

Oxygen in

Carbon dioxide out

19
Q

What diffusion happens in photosynthesis?

A

Carbon dioxide in

Oxygen out

20
Q

What factors affect the rate of diffusion?

A

The greater the difference in concentration the faster the rate of diffusion
The higher the temperature cause the particles’ll have more kinetic energy
Larger surface area
Short diffusion distances such as thin exchange surface

21
Q

What is osmosis?

A

It’s when water diffuses from an area of high water concentration to an area of low water concentration through a partially permeable membrane.

21
Q

Why do plants need to have turgid vacuoles?

A

So that the stems stay up right.

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