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