7.5a 7.5.b

All living organisms need gases to live. In plants, gas exchange occurs mainly in the

• waxy covering over the leaf

• stomata of the leaf

• roots

• lungs

What form of energy is stored in food?

• light energy

• kinetic energy

• chemical energy

• mechanical energy

Tags

NGSS.MS-LS1-7

Which of the following processes converts radiant energy from the sun into chemical energy that is stored inside a cell?

• excretion

• replication

• photosynthesis

• digestion

Tags

NGSS.MS-LS1-6

The equation above represents a biological process that takes place in the

• cell membrane

• mitochondrion

• cytoplasm

• chloroplast

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which diagram provides evidence of how gravity affects root formation in a sprouting seed?

• Seed A

• Seed B

• Seed C

• Seed D

Tags

NGSS.MS-LS1-5

Geotropism is a response of plants that causes the roots of seeds to grow

• towards the sky

• sideways

• towards the center of the Earth

• inwards

What is the main function of chloroplasts in a plant cell?

• They produce proteins.

• They store water and food.

• They perform photosynthesis.

• They protect cells from the surrounding environment.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Green plants produce their own food during photosynthesis. Which of these statements about photosynthesis is true?

• Water is one product of photosynthesis.

• Oxygen is one product of photosynthesis.

• Chlorophyll is one product of photosynthesis.

• Carbon dioxide is one product of photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Plant B is most likely showing a response to –

• Gravity

• light from the window

• touch

• dry soil

Tags

NGSS.MS-LS1-5

Plant A and Plant B were identical when the investigation began and were given the same amount of water and fertilizer. The most likely explanation for the differences in plant growth is that light –

• bends the stems of plants

• is needed for plant growth and development

• is not as important as water

• is not as important as fertilizer

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1