Revision

​Revision /unit 1/

Grade 6​

​Plant and animal cell

​The parts found inside animal and plant cell are called organelles.

Multiple Choice

a jelly-like substance in which chemical reactions take place

• cell membrane

• cytoplasm

• chloroplast

• mitochondrion

All cells have cytoplasm.

Cytoplasm is like clear jelly.

Chemical reactions happen inside the cytoplasm. These reactions keep the cell alive.

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​Cytoplasm

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Multiple Choice

the part of a cell that contains chromosomes, and that controls the activities of the cell

• cell membrane

• chloroplast

• vacuole

• nucleus

Most cells have a nucleus. The nucleus controls the activities of the cell.​

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​Nucleus

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Multiple Choice

a strong outer covering, found around plant cells but not animal cells

• cell wall

• cell membrane

• chloroplast

• mitochondrion

​Every plant cells has a cell wall. The cell wall is strong and stiff. It holds the plant cell in shape. 

Plant cell walls are made of a substance called cellulose.

​Cell wall

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Multiple Choice

a thin, flexible covering, found around all cells, that controls what enters and leaves the cell

• cell wall

• cell membrane

• sap vacuole

• cytoplams

RAll cells have a cell membrane. The cell membrane is very thin and flexible.

It is like the thin skin of a soap bubble. It lies along the inner edge of the cell wall. 

The cell membrane controls what goes in and out of the cell.

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​cell membrane

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Multiple Choice

a green colouring found in some plant cell

• cytoplasm

• sap vacuole

• mitochondrion

• chloroplast

Plant cells that are in the sunlight often contain chloroplasts.

This is where plants make their food. Chloroplasts look green because they contain a green substance called chlorophyll.​

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​chloroplast

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Multiple Choice

Where energy is released from nutrients

• cytoplasm

• sap vacuole

• mitochondrion

• chlorophyll

All plant cells have mitochondria (singular: mitochondrion). 

Inside mitochondria, energy is released from food.

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​Mitochondrion

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Multiple Choice

In what ways do plant and animal cells differ?

• Plant cells have cell walls and chloroplasts.

• Animal cells have cell walls and chloroplasts.

• Plant cells have a nucleus and mitochondria.

• Animal cells have a nucleus and mitochondria.

Multiple Choice

What organelle is #4?

• Vacuole

• Mitochondria

• Nucleus

• Chloroplast

Multiple Choice

Which organelle controls what enters and leaves the cell?

• Cell Wall

• Cell Membrane

• Vacuole

• Cytoplasm

Multiple Choice

The function of a red blood cell is to.....

• move mucus up and away from the lungs

• make food by photosynthesis

• transport oxygen around the body

• carry electronical signals

The cytoplasm contains a red pigment (colour) called haemoglobin. This carries oxygen around the body.

The cell has no nucleus. This leaves more space for haemoglobin.​

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​Red blood cell

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Multiple Choice

The function of a ciliated cell is to......

• move mucus up and away from the lungs

• make food by fotosynthesis

• absorb water and minerals

• carry electronical signal

The cilia can move.​

When you breathe in, the mucus traps dust and bacteria in the air, to stop them going into your lungs. 

The cilia sweep the mucus up to the back of your mouth and you swallow it.

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​Ciliated cell

Multiple Choice

The function of a root hair cell is to ........

• make food by photosynthesis

• absorb water and minerals from the soil

• transport oxygen around the body

• to electrical signals

Their function is to absorb water from the soil.

Each cell has a long, thin extension that allows water to move easily from the soil into the cell.

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​Root hair cell

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Multiple Choice

The function of a neurone is to ......

• move mucus up and away from the lungs

• make food by photosynthesis

• transport oxygen around the body

• carry electrical signals

Neurones carry electrical signals from one part of the body to another. They help all the different parts of the body to communicate with each other. For example, they can carry signals from the brain to muscles, to make the muscles move.

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​Neurones

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Multiple Choice

The function of a palisade cell is to....

• make food by photosynthesis

• absorb water and minerals from the soil

• transport oxygen around the body

• carry electrical signal

​Palisade cells are found in the leaves of plants. Their function is to make food by photosynthesis.

They have lot of chloroplasts containing chlorophyll.

The chlorophyll absorbs energy from sunlight, which is used to help the plant make food.

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​Paliside cell

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Multiple Choice

A structure made up of many different tissues, which work together to perform a particular function.

• cell

• tissue

• organ

• organ system

The bodies of plants and animals contain many different parts, called organs. For example, your organs include your brain, heart and muscles. Plants’ organs include leaves, roots and flowers.​

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​Organ

Multiple Choice

A set of organs that all work together to carry out the same function.

• cell

• tissue

• organ

• organ system

A set of organs that all work together to carry out the same function.​

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​Organ system

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