Unit 1 Review

Which pieces of equipment can be used to observe a lady bug's wings?

• telescope and hand lens
• binoculars and microscope
• hand lens and microscope
• binoculars and hand lens

Which of the following statements is true?

• Both plant and animal cells contain identical cell structures.
• The activities of both plant and animal cells are controlled by a nucleus within the cell.
• Plant cells are surrounded a thick cell membrane that supports and protects the plant cell.
• Animal cells contain chloroplasts that store food, water, or wastes.

Scientists discovered three things when they observed cells through a microscope. Which of the following did they NOT observe?

• All living things are made of cells.
• All cells share some characteristics.
• Different kinds of cells do different jobs.
• Plant cells an animal cells have the same structures.

Laura looked at a cell through a microscope. She observed the following structures:

*nucleus
*cytoplasm
*vacuole

What kind of cell did Laura possibly observe?

• animal only
• both plant and animal
• plant only

The organelle that directs all of cell's activities is the

• Cytoplasm
• Mitochondria
• Nucleus
• Vacuole

Which of the following statements is NOT true about plant cells?

• the cell membrane of a plant cell is surrounded by a cell wall
• chloroplasts make food for the cell
• plant cells do not have a mitochondria
• plant cells have a nucleus

Which statement is true of both single-celled organisms and an organism with millions of cells?

• each organism is able to carry out its own life functions
• each organism is covered with epithetical tissue
• cells are organized into tissues that perform a specific function
• different kinds of tissues form organs

If an apple or pear is not eaten, it will spoil. Spoiling fruit is a harmful effect of

• many plants and animals
• gases in the air
• Water
• Microorganisms

Which statement is NOT true?

• microorganisms are too small to see without a microscope
• bacteria are made up of multiple cells
• some fungi can rot wood and spoil food
• microorganisms cause dead things to decay

Milk can be transformed into yogurt. What type of microorganisms cause this transformation?

• Yeast    
• Algae
• Bacteria