Photosynthesis/Plant Structure and Function

This diagram represents how plants make their own food. Which word would replace letter Z in the diagram?

• Carbon dioxide

• Oxygen

• Water

• Energy

Tags

NGSS.MS-LS1-6

What is the role of a cactus in a desert ecosystem?

• Consumer

• Omnivore

• Abiotic

• Producer

A student conducted an experiment with two identical potted plants. One plant was placed in an open windowsill. The other plant was placed in a dark closet. The plants were watered equally. Here are the results:

Plant 1- By the window: The plant appears healthy. Stems are upright and leaves are green and firm.

Plant 2- In the dark closet: The plant appears to be dying. Stems have wilted to fall over the edge of the pot. Leaves are yellow and floppy. What do the results suggest? Choose TWO answers.

• Without sunlight, plants cannot make their own food effectively.

• Without water, plants cannot make their own food effectively.

• The amount of light a plant receives does not affect its overall health.

• The amount of light a plant receives affects its overall health.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Plants create their own food through photosynthesis.

Which statement about photosynthesis and the cycling of matter is NOT correct?

• Plants release a gas that animals must take in to survive.

• The energy that plants need to create their own food comes from the Sun.

• Plants take in water through their leaves.

• Animals release a gas that plants must take in to survive.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Three structures of some plants are shown below. Waxy leaves keep in moisture, Flowers bloom soon after rainfall to avoid drought, Spines provide shade. What type of environment are these plants best suited for?

• A cold tundra

• A pond

• A dry desert

• A tropical rainforest

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Many plants that grow in freshwater areas have floating roots or flexible stems. How do these structures benefit these plants?

• They protect the plants from predators.

• They allow them to move with the water.

• They allow them to pollinate more easily.

• They keep the plants in place more easily.

Drag and label each part photosynthesis to the part of the diagram to which it corresponds. HINT: the clouds represent gases!

a

b

c

d

e

Oxygen

Water

sunlight

glucose

Carbon Dioxide

Tags

NGSS.MS-LS1-6

Which part of the plant is primarily responsible for absorbing water?

• Stems

• Flowers

• Roots

• Leaves

What is the main function of leaves in plants?

• To absorb water

• To absorb sunlight

• To store nutrients

• To protect from herbivores

Plants need (a)   to make their own food.

• sun, sater, and animals
• sun, Diet Coke, and soil
• sun, water, and carbon dioxide
• Nothing at all

Tags

NGSS.MS-LS1-6