Biology 2

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Created by: kelz0209
Created on: 18-04-14 12:31

Give three ways in which animal cells are different from plant cells.

Plnt cells have a rigid cell wall, they have a permanent vacuole and they contain chloroplast.

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Define diffusion.

Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration.

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What is the function of a red bood cell?

To carry oxygen.

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Describe two ways in which the red blood cell is adapted to its function.

Concave shape gives the red blood cells a large surface area for absorbing oxygen/ concave shape helps the red blood cells pass through capillaries to body cells/ no nucleus maximises the space for haemoglobin.

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Name the process by which cells become specialised for a particular job.

Differentiation.

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What is an organ system?

An organ system is a group of organs working together to perform a particular function.

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Name five organs that are part of the human digestive system.

Salivary glands/pancreas/liver/stomach/large intestine/small intestine.

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The diagram shows a palisade cell from a leaf. Which label points to a chloroplast?

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Name the green substance present in chloroplasts.

Chlorophyll.

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Apart from having chloroplasts, suggest one other way in which a palisade cell is adapted for photosynthesis.

It has a tall shape/a large surface area for absorbing carbon dioxide.

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The three diagrams are showing cells surrounded by glucose. Into which cell, A,B or C, will there be a net movement of glucose? Explain your answer.

B-it has a higher concentration of glucose outside the cell than inside, so glucose will diffuse into the cell.

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Other than glucose, name one molecule that can diffuse through cell membranes into cells.

Oxygen.

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Other cards in this set

Card 2

Front

Define diffusion.

Back

Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration.

Card 3

Front

What is the function of a red bood cell?

Back

Card 4

Front

Describe two ways in which the red blood cell is adapted to its function.

Back

Card 5

Front

Name the process by which cells become specialised for a particular job.

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Biology 2