Cells

Question 1 of 18

1

CYTOPLASM contains ENZYMES that control the CHEMICAL REACTIONS.

Select one of the following:

True
False

Explanation

Question 2 of 18

1

What is the function of the cell wall?

Select one of the following:

support and strengthen the plant cell
to produce proteins
where photosynthesis takes place

Explanation

Question 3 of 18

1

What is the green substance in chloroplasts?

Select one of the following:

chlorophyll
cellulose
enzymes
mitochondria

Explanation

Question 4 of 18

1

What does the permanent vacuole contain?

Select one of the following:

cell sap (weak solution of sugars and salts)
chlorophyll
cellulose

Explanation

Question 5 of 18

1

This is a bacteria cell

Select one of the following:

True
False

Explanation

Question 6 of 18

1

Features of a bacteria cell

Select one or more of the following:

nucleus
mitochondria
cytoplasm
cell membrane
plasmid DNA
cell wall
vacuole
chloroplasts
flagella
chromosomal DNA (carries most of the genetic information)

Explanation

Question 7 of 18

1

Yeast cells do not contain ribosomes or mitochondria

Select one of the following:

True
False

Explanation

Question 8 of 18

1

Both yeast and bacteria are single celled organisms

Select one of the following:

True
False

Explanation

Question 9 of 18

1

Diffusion is the spreading of particles from a LOW concentration to a HIGH concentration

Select one of the following:

True
False

Explanation

Question 10 of 18

1

Diffusion only happens in liquids

Select one of the following:

True
False

Explanation

Question 11 of 18

1

Diffusion only happens in liquids

Select one of the following:

True
False

Explanation

Question 12 of 18

1

The BIGGER the DIFFERENCE IN CONCENTRATION the FASTER the diffusion rate

Select one of the following:

True
False

Explanation

Question 13 of 18

1

Dissolved substances can move in and out of cells by DIFFUSION. This is called OSMOSIS

Select one of the following:

True
False

Explanation

Question 14 of 18

1

Osmosis is the movement of water from a less concentrated solution to a more concentrated solution through a partially permeable membrane.

Select one of the following:

True
False

Explanation

Question 15 of 18

1

Particles move about randomly, so they move both ways through a semi permeable mebrane in osmosis. This means there is a NET (overall) movement FROM the HIGHER concentration

Select one of the following:

True
False

Explanation

Question 16 of 18

1

Adaptions of the PALISADE CELL or PHOTOSYNTHESIS

Select one or more of the following:

Packed with chloroplasts
More chloroplasts near the top of the cell so they're nearer the light
TALL meaning larger SURFACE AREA for ABSORBING CO2 from the air
THIN meaning they can be crammed tightly next to eachother at the top of the leaf
Special kidney-shape
When the plant has lots of water, the cells become TURGID so the stomata OPEN and gases can be exchanged
When the plant is short of water, the cells become FLACCID, making the stomata close, meaning less water vapour escapes.
THIN outer walls and THICKER inner walls make the opening and closing work
SENSITIVE TO LIGHT - CLOSE AT NIGHT to save water

Explanation

Question 17 of 18

1

Adaptions of the GUARD CELLS to OPEN and CLOSE PORES (STOMATA)

Select one or more of the following:

Packed with chloroplasts
More chloroplasts near the top of the cell so they're nearer the light
TALL meaning larger SURFACE AREA for ABSORBING CO2 from the air
THIN meaning they can be crammed tightly next to eachother at the top of the leaf
Special kidney-shape
When the plant has lots of water, the cells become TURGID so the stomata OPEN and gases can be exchanged
When the plant is short of water, the cells become FLACCID, making the stomata close, meaning less water vapour escapes.
THIN outer walls and THICKER inner walls make the opening and closing work
SENSITIVE TO LIGHT - CLOSE AT NIGHT to save water

Explanation

Question 18 of 18

1

Guard cells are grouped together at the top of the leaf where most of the photosynthesis happens

Select one of the following:

True
False

	Created by mollymalone98 almost 11 years ago

GCSE Science (Physics) Quiz on Cells, created by mollymalone98 on 06/01/2014.

Question 1 of 18

CYTOPLASM contains ENZYMES that control the CHEMICAL REACTIONS.

Select one of the following:

Explanation

Question 2 of 18

What is the function of the cell wall?

Select one of the following:

Explanation

Question 3 of 18

What is the green substance in chloroplasts?

Select one of the following:

Explanation

Question 4 of 18

What does the permanent vacuole contain?

Select one of the following:

Explanation

Question 5 of 18

This is a bacteria cell

Select one of the following:

Explanation

Question 6 of 18

Features of a bacteria cell

Select one or more of the following:

Explanation

Question 7 of 18

Yeast cells do not contain ribosomes or mitochondria

Select one of the following:

Explanation

Question 8 of 18

Both yeast and bacteria are single celled organisms

Select one of the following:

Explanation

Question 9 of 18

Diffusion is the spreading of particles from a LOW concentration to a HIGH concentration

Select one of the following:

Explanation

Question 10 of 18

Diffusion only happens in liquids

Select one of the following:

Explanation

Question 11 of 18

Diffusion only happens in liquids

Select one of the following:

Explanation

Question 12 of 18

The BIGGER the DIFFERENCE IN CONCENTRATION the FASTER the diffusion rate

Select one of the following:

Explanation

Question 13 of 18

Dissolved substances can move in and out of cells by DIFFUSION. This is called OSMOSIS

Select one of the following:

Explanation

Question 14 of 18

Osmosis is the movement of water from a less concentrated solution to a more concentrated solution through a partially permeable membrane.

Select one of the following:

Explanation

Question 15 of 18

Particles move about randomly, so they move both ways through a semi permeable mebrane in osmosis. This means there is a NET (overall) movement FROM the HIGHER concentration

Select one of the following:

Explanation

Question 16 of 18

Adaptions of the PALISADE CELL or PHOTOSYNTHESIS

Select one or more of the following:

Explanation

Question 17 of 18

Adaptions of the GUARD CELLS to OPEN and CLOSE PORES (STOMATA)

Select one or more of the following:

Explanation

Question 18 of 18

Guard cells are grouped together at the top of the leaf where most of the photosynthesis happens

Select one of the following:

Explanation