Lesson 12 Plant Anatomy and Plant Physiology

Q1. What is the major function of mitochondria?

ATP production Only storing DNA Making a cell wall Only photosynthesis

Q2. How does CO₂ enter a leaf for photosynthesis?

Through stomata Through xylem Through root hairs Through phloem

Q3. Growth of roots toward moisture is called:

Hydrotropism Phototropism Geotropism Chemotropism

Q4. Which tissue transports water and minerals in plants?

Xylem Phloem Parenchyma Collenchyma

Q5. Where does glycolysis occur?

Cytoplasm Only in mitochondrial matrix Nucleus Only in chloroplast

Q6. Which plant hormone strongly influences phototropism?

Auxin Ethylene Abscisic acid Cytokinin only

Q7. Which is the main organ where photosynthesis occurs?

Leaf Root Flower only Seed only

Q8. In which cell organelle is chlorophyll located?

Chloroplast Mitochondrion Ribosome Golgi body

Q9. Root growth downward in response to gravity is:

Positive geotropism Negative geotropism Positive phototropism Thigmotropism

Q10. What is a major feature of collenchyma?

Flexible support to growing parts Only rigid lignified support Food transport Water transport