Unit 3: Energy and Matter in Organisms

The diagram includes a producer and a consumer.

What do the arrows represent?

• Matter is transferred from the sun, to the grass, to the cow.

• Matter is transferred from the cow, to the grass, to the sun.

• Energy is transferred from the sun, to the grass, to the cow.

• Energy is transferred from the cow, to the grass, to the sun.

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What do all animals need for growth?

• oxygen, water, and food

• oxygen, sunlight, and food

• carbon dioxide, food, and water

• carbon dioxide, nutrients, and sunlight

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A bee collects nectar from a flower. The nectar is taken back to the beehive, where it is made into honey. The honey is used as food for the entire beehive.

Where does the energy of the honey originally come from?

• bee

• flower

• sugar

• sun

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What is the process that plants use to produce food?

• sunlight

• chloroplast

• photosynthesis

• carbon dioxide

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In a food chain, there are producers, consumers, and decomposers. What is the role of a producer in a food chain?

• to make food

• to eat plants

• to eat other living things

• to break down dead things

If you conduct an experiment to see what happens to plants and animals in an ecosystem that does not get enough sunlight, what should you measure?

• the growth of plants and animals

• the temperature of the water

• how much food they feed the plants

• how much water they put in the tank

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What is the name of the process shown in the picture?

• food chain

• decomposing

• photosynthesis

• food web

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What is an organism called that feeds on another organism?

• consumer

• scavenger

• producer

• decomposer

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How does most of the water needed by the plant get into its leaves?

• It enters through the stomata

• The roots absorb it and then it travels up the stem

• It's made during a chemical reaction in the leaf

• The flowers capture water and deliver it to the leaves

Which of the following is the correct equation for PHOTOSYNTHESIS?

• light + carbon dioxide + water --> glucose + oxygen

• carbon dioxide + sugar + water --> oxygen + light

• oxygen + light + water --> carbon dioxide + sugar

• carbon dioxide + oxygen + water --> Light+ Sugar

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