- Created by: Polly
- Created on: 13-04-15 12:46
1. What is the role of the stomata in gas exchange?
- Allow spongy cells to expand and contract
- Allow O2 to diffuse in, and CO2 to diffuse out
- Allow CO2 to diffuse in, and O2 to diffuse out
- No function
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Other questions in this quiz
2. What is the function of the upper epidermis?
- Contains stomata, allowing O2 to diffuse into leaf and CO2 to diffuse out
- Contains a few chloroplasts- relatively transparent
- Main sight of photosynthesis
- Protective layer of leaf and barrier to harmful micro-organisms
3. What 7 things do bacterium particles contain?
- Cell wall, flagella, plasmids, cytoplasm, chromosome, cell membrane, slime layer
- Cell wall, flagella, chromatids, cytoplasm, chromosome, cell membrane, slime layer
- Cell wall, plasmids, flagella, cytoplasm, nucleus, cell membrane, vacuole
- Cell wall, plasmids, cytoplasm, chloroplasts, nucleus, vacuole, slime layer
4. Which of these is an example of a virus?
- Lactobactillius bulgarius
5. What do potassium ions do?
- Make xylem and phloem
- Used for enzymes of respiration and photosynthesis
- Make amino acids, proteins, chlorophyll, and DNA
- Part of chlorophyll molecule