Photosynthesis, Respiration, and Ecology

How could you tell whether the material is an element or a compound?

• compounds contain only one type of atom

• elements contain only one type of atom

• compounds cannot be further broken down

• elements can be further broken down

Tags

NGSS.MS-PS1-1

Which claim explains why all organisms need food?

• it provides all water needed

• it provides all energy needed

• it provides all oxygen that is needed for respiration

• it provides all DNA needed to grow.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-LS2-3

What is matter?

• something that has mass and takes up space

• something that causes change

• something that conducts electricity

• something that cannot be seen

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is energy?

• something that has mass and takes up space

• something that causes change

• something that conducts electricity

• something that cannot be seen

What does the law of conservation of energy state?

• It is important to use as little energy as possible.

• Organisms save the energy that they create.

• Organisms change energy into mass.

• Energy cannot be created or destroyed.

Tags

NGSS.HS-PS3-2

During cellular respiration, cells break down food to release energy. During photosynthesis, cells produce food in the form of glucose. What is one difference between these two processes?

• Cellular respiration uses oxygen and photosynthesis produces oxygen.

• Cellular respiration uses carbon dioxide and photosynthesis does not.

• Cellular respiration produces oxygen and photosynthesis does not.

• Photosynthesis produces twice as much glucose than cellular respiration does.

Tags

NGSS.MS-LS1-6

In the carbon cycle, how do living things store most of their energy?

• water

• organic molecules

• light energy

• heat energy

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What do plants do with the oxygen produced in their cells during photosynthesis?

• reuse it during photosynthesis

• combine it with water to make sugar

• exhale it

• store it for later use

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False: Plants can use BOTH photosynthesis and cellular respiration.

• TRUE

• FALSE

Answer explanation

They use photosynthesis when light energy is present (the sun) and cellular respiration when there is no light present.

Tags

NGSS.MS-LS1-6

Where is the ultimate energy source for living things here on Earth?

• the ocean

• the soil

• the sun

• the wind

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3