Mod C Unit 1 Lesson 1 - Matter and Energy in Organisms

Why is the ability to move important to animals?

• It helps them find food.

• It is the only way they can stay warm.

• It helps them obtain oxygen.

• It helps them differentiate cells.

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What form of energy is stored in food?

• heat

• light energy

• energy of motion

• energy in molecules

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How do organisms get the energy they need?

• Plants get their energy from fertilizers. Animals get energy from water.

• Plants get energy from the soil. Animals get energy directly from sunlight.

• Plants do not need energy because they do not move. Animals get energy from food.

• Plants use energy from sunlight to make sugar molecules. Animals get energy from eatin other organisms.

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Carbon exists in many forms on Earth. The diagram shows part of the carbon cycle. What does this diagram show?

• It shows how matter can pass through an ecosystem.

• It shows each step in the correct order that carbon must pass through.

• It shows how more carbon is constantly being formed and passed along.

• It shows how carbon is running out because it is all being used up by animals.

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Worms break down dead plants in the soil to release nutrients. Which property of nutrients shows that they are matter?

• Nutrients are warm.

• Nutrients have mass and volume.

• Nutrients can do work.

• Nutrients contain energy.

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Some consumers, such as many flying insects, need large amounts of energy to grow and move from one place to another. How do consumer get energy to function?

• Consumers obtain all their energy by eating other organisms.

• Consumers obtain some energy from other organisms and some from sunlight.

• Consumers obtain most of their energy by absorbing it from their environments.

• Consumers convert light energy from the sun into chemical energy stored in food.

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What happens to the food after the snail eats it? (Choose 2)

• The snail breaks apart the food molecules to get energy.

• The snail uses the matter inthe food to grow.

• The snails uses the matter in the food to produce its own food.

• The snail uses energy from the sun to make food.

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Why do you think the starch molecule shown is a good source of energy for an organism?

• The many bonds in the starch molecule store energy.

• The starch molecule is made of atoms.

• The starch molecule is the only type of molecule that provides energy.

• A starch molecule is made of more than one kind of atom.

The plants in the photo get energy from the ______. The plants store energy in the ________ between ________ that make up the food molecules.

• air / bonds / atoms

• sun / bonds / atoms

• air / matter / cells

• air / matter / atoms

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In what order do the sentences show what will happen to an apple's matter and energy?

__ A dear eats the apple to get matter and energy.

__ The apple passes through the digestive system of the dear returning some of the apple's matter and energy to the environment.

___ An apple tree uses the matter from the air and soil for life processes.

___ An apple falls from a tree and lands on the ground ready for a deer to come by.

___ Decomposers break down the deer's waste to get matter and energy and return some matter to the air and soil.

• 1, 2, 3, 4, 5

• 2, 3, 5, 1, 4

• 5, 4, 3, 2, 1

• 2, 5, 1, 4, 3

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