7th Grade M-STEP Science Review #1

Mark sliced a plant’s stem into various sections and placed them under a microscope. He noticed that each of the sections had identical cell formations, which created tube-like structures in the stem.
A main function of the stem is to:

• absorb minerals from the soil.
• transport food and water.
• protect against diseases.
• capture sunlight for photosynthesis.

Which is the first thing that would happen if a plant could NOT obtain carbon dioxide?

• It would not be able to reproduce.
• It would not be able to absorb minerals.
• It would not be able to get rid of waste.

Plants absorb light energy and store that energy in the form of

• water.
• carbon dioxide.
• sugar.
• oxygen.

• Use many seeds to conduct the experiment.
• Start the samples on different days.
• Use different amounts of water.
• Place the seeds in new locations.

• Layer 4
• Layer 3
• Layer 2
• Layer 1

Which process will produce igneous rocks?

• deposition of sediments
• volcanic action
• earthquake activity
• erosion of surface rocks

Which motion describes molecules in a solid at extremely low temperatures?

• bumping together with some room to move
• vibrating while closely packed together
• moving freely and randomly in a space
• sliding around one another and colliding

Cindy dissected a flowering plant and looked at the stem, roots, leaves, and flower using a microscope. After her observations, Cindy should conclude that all flowering plant structures

• are not living.
• have the same function.
• have cells.
• are green.

• the test results were recorded
• the volunteer went to sleep
• the study was done overnight
• only one volunteer participated

Some insects consume nectar from flowering plants and help the plant by spreading pollen Which type of relationship between insects and plants does this demonstrate?

• parasitic
• competitive
• predator-prey
• mutually beneficial