Unit 3 Cells to Body Systems Review

What is the smallest part of a tree that can do all the things needed for life?

• the root

• the leaf

• the cell

• the nucleus

What takes place during mitosis?

• One cell divides into two identical cells.

• Cell parts release energy for the cell to do its job.

• The cell uses energy from sunlight to make sugar.

• Waste materials are removed from the cell.

What do we call a group of cells that are organized to do a certain job?

• connective

• organ

• organ system

• tissue

Which organs support the body, store minerals, and allow movement?

• bones

• ligaments

• pancreas

• skin

Which organ removes waste from the blood, controls the blood's salt level, and helps conserve water?

• bladder

• small intestine

• kidneys

• liver

Through which organ system does food get to your cells?

• the muscular system

• the circulatory system

• the excretory system

• the skeletal system

A blade of grass is long, thin, and flexible, yet it can stand up. What part of grass cells helps the plant keep its shape?

• cell wall

• chloroplast

• cell membrane

• nucleus

Which test verifies that the evaporation of alcohol decreases temperature more quickly that the evaporation of water?

• Test A

• Test B

• Test C

• Test D

Pete assumed all cells were the same, so he looked at only animal cells under the microscope. Then one day he used the microscope to study a plant cell. What new thing did he see?

• cell wall

• nucleus

• vacuole

• cell membrane

A cell’s shape helps it do its job. For example, skin cells are flat, which helps them protect the body. What are nerve cells shaped like?

• balls

• pancakes

• threads

• eggs