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Cell Structure And Transport Year9 Biology > Year 9 /topic 1GCSE > Flashcards

Year 9 /topic 1GCSE Flashcards

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1
Q

What is the role of the nucleus

A

The nucleus directs cell activates and it contains DNA

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2
Q

What is the role of the Mitochondria

A

Its to make energy out of food (glucose)

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3
Q

What is the role of the ribosomes

A

To make protein

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4
Q

What is the role of the permeant vacoule

A

It is used to store water and cell sapp

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5
Q

What is the role of the chloroplast

A

It is used to make food from photosynthesis

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6
Q

What is the role of the cell wall

A

It is to support the plants structure

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7
Q

What is magnificatiom

A

Magnification is the ability to make small objects seem larger

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8
Q

What is resolution

A

Resolution is the ability to distinguish two objects from each other

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9
Q

What are eukaryotic cells

A

Cells that have a nucleus,examples: plant and animal cells

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10
Q

What are prokaryotic cells

A

Prokaryotic cells are cells that luck lack nucleus and any membrane

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11
Q

How are prokaryotic and eukaryotic cells alike

A

Both cells have ribosomes and memebrane

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12
Q

How are prokaryotic and eukaryotic cells are different

A

Prokaryotic cells have no nucleus and have circular DNA, while eukaryotic have a nucleus and linear DNA

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13
Q

What is duffsion

A

Diffusion is a movement of particles from a high concentrated area to a low concentrated area, down gradient until equilibran is reached

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14
Q

What is osmosis?

A

Osmosis is the diffusion of water from a dilute solution to a concentrated solution across a partially permeable membrane.

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15
Q

What are the factors that effect diffusion

A

The higher the temperature the faster rate diffusion takes place,increases the concentration gradient

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16
Q

Why is diffusion important

A

Diffusion is important because it can help transport nutrients to the cells and can get rid of old cells

17
Q

What is active transport?

A

Transport where it goes from a lower concentration to higher concentration , it requires protein carriers and it goes against the concentration gradient.

18
Q

Surface area to volume

A

The ratio between the surface area and volume, how easy the exchange of substances depends on the organisms SA:V

Cell Structure And Transport Year9 Biology (3 decks)

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