brodidit for students
حیاتی توانائی
نویں جماعت · حیاتیات · 10 سوالات
نام: ____________________ تاریخ: ____________
Plants make their food by:
- A Excretion
- B Photosynthesis
- C Respiration
- D Digestion
Which gas do plants take in for photosynthesis?
- A Carbon dioxide
- B Oxygen
- C Hydrogen
- D Nitrogen
Which pigment absorbs light in photosynthesis?
- A Haemoglobin
- B Keratin
- C Chlorophyll
- D Melanin
The energy currency of the cell is:
- A RNA
- B Glucose
- C DNA
- D ATP
Aerobic respiration needs:
- A Only light
- B Only nitrogen
- C No oxygen
- D Oxygen
Anaerobic respiration in yeast produces:
- A Oxygen
- B Water only
- C Lactic acid
- D Ethanol and carbon dioxide
Photosynthesis takes place mainly in the:
- A Leaves
- B Stem bark
- C Roots
- D Flowers only
The by product of photosynthesis is:
- A Water vapour only
- B Nitrogen
- C Oxygen
- D Carbon dioxide
Respiration releases energy from:
- A Chlorophyll
- B Glucose
- C Water
- D Light
Which is the correct word equation for photosynthesis?
- A Oxygen + water gives glucose
- B Carbon dioxide + water gives glucose + oxygen
- C Glucose gives oxygen only
- D Glucose + oxygen gives carbon dioxide + water
جوابی کلید
1. B, 2. A, 3. C, 4. D, 5. D, 6. D, 7. A, 8. C, 9. B, 10. B
Photosynthesis uses light energy to make glucose.
Carbon dioxide and water are the raw materials.
Chlorophyll absorbs light energy, mainly red and blue light.
ATP carries energy for cell activities.
Aerobic respiration uses oxygen to break down glucose.
Yeast ferments glucose to ethanol and carbon dioxide.
Leaves have the most chloroplasts.
Oxygen is released.
Glucose is broken down to release energy.
Light and chlorophyll are needed.