Plant/Animal Cells and Systems
- 1. According to the cell theory, cells are the _____.
A) smallest particles on Earth
B) same in plants and animals
C) largest parts of the body
D) basic units of life
- 2. A substance called glucose provides energy for _____.
A) large animals only
B) plants only
C) animals only
D) all living things
- 3. The skin and the heart are two kinds of
A) cells
B) organs
C) tissues
D) organ systems
- 4. Proteins are assembled at organelles called _____.
A) ribosomes
B) mitochondria
C) chloroplasts
D) vacuoles
- 5. People rely on photosynthesis in plants for food and ____.
A) carbon dioxide
B) oxygen
C) chlorophyll
D) minerals
- 6. Vascular tissues are important for the _____.
A) transport of materials
B) absorption of energy
C) opening of the stomata
D) diffusion of water
- 7. To make food, plants use energy from sunlight to combine water and _____.
A) sugar
B) minerals
C) carbon dioxide
D) oxygen
- 8. A plant cell in a nonvascular plant gets water from _____.
A) root pressure
B) diffusion
C) cohesion
D) gravity
- 9. How many chambers are in the human heart _____.
A) 3
B) 5
C) 4
D) 2
- 10. In the lungs, gas exchange occurs in tiny air sacs called _____.
A) villi
B) trachea
C) alveoli
D) bronchi
- 11. Saliva works to break down starch into_____.
A) proteins
B) vitamins
C) fats
D) sugars
- 12. Where are your kidneys located?
A) near the middle of the back
B) between the heart and lungs
C) behind the stomach
D) next to the liver
- 13. What is the main purpose of the Circulatory System?
- 14. What is the main purpose of the Respiratory System?
- 15. What is the main purpose of the Digestive System?
- 16. What is the main purpose of the Excretory System?
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