🌿 Comprehensive Question Set on ICSE Class 9 Chapter 7: Respiration in Plants
Enhance your ICSE Class 9 biology preparation with this detailed and structured question set on Chapter 7 – Respiration in Plants. Includes multiple-choice, short answer, long answer, and diagram-based questions with answers.
🌱 Check 1
- ✨ Write the key aspects about the overall chemical equation of respiration, focusing on:
- 🔄 Number of steps for glucose to break down into CO₂ and H₂O.
- ⚙️ Involvement of enzymes.
- ⚡ Forms of energy liberated.
- 🔥 List three ways respiration is different from burning.
- 🌬️ Name the three inlets of oxygen for respiration in plants.
🌿 Check 2
- 🧪 Provide the overall chemical equations for:
- Aerobic respiration.
- Anaerobic respiration.
- ✅ Mention any one key difference between aerobic and anaerobic respiration, excluding their chemical equations.
- 🍞 Name two organisms that respire anaerobically throughout their lives.
🌻 Progress Check 3
- 🔍 Why are seeds boiled when taken as control in respiration experiments?
- 🧪 State the use of the following in respiration experiments:
- Soda lime.
- Limewater.
- 🌿 What precaution is required when demonstrating respiration in a green plant?
- 💧 Why is mercury used in experiment no. 5 instead of water?
🍃 Progress Check 4
- 🔄 Fill in the blanks:
- In anaerobic respiration in plants, the end products are __________ and __________ instead of __________ in animals.
- ✅ Correct the wrong points in the table differentiating photosynthesis and respiration.
🌼 Multiple Choice Questions
- Glycolysis is a process:
- a) Breaking glycogen into glucose
- b) Occurring in mitochondria
- c) Breaking glucose into pyruvate ✅
- d) Occurs next to Krebs cycle
- Common respiration structures in plants are:
- a) Stomata and veins
- b) Stomata and lenticels ✅
- c) Lenticels and sepals
- d) Lenticels and hydathodes
- Anaerobic respiration normally occurs in:
- a) Grass
- b) Cactus
- c) Coconut
- d) Baker’s yeast ✅
- ATP produced in aerobic respiration from one glucose molecule:
- a) 2
- b) 20
- c) 18
- d) 38 ✅
- Respiration in plants occurs:
- a) Only in stomata
- b) Only in leaves
- c) Only in lenticels
- d) In all parts ✅
- Produced during anaerobic respiration in plants:
- a) Soda lime
- b) Ethyl alcohol ✅
- c) Lime water
- d) None of these
- Glycolysis takes place in:
- a) Chloroplast
- b) Mitochondria
- c) Cytoplasm ✅
- d) Ribosomes
- Lime water turns milky due to:
- a) Calcium carbonate ✅
- b) Sodium carbonate
- c) Calcium chloride
- d) Sodium chloride
🌸 Very Short Answer Type
- Fill in the blanks:
- __________ are openings found on older stems.
- Glycolysis takes place in the __________ of the cell
- __________ is a respiratory substance.
- Rate of __________ is more than __________ in daytime in green plants.
- __________ absorbs oxygen from air.
- __________ is utilized to create a vacuum during anaerobic respiration.
- Name the following:
- Energy currency of the cell.
- The process of breaking down carbohydrates in the presence of oxygen to release energy
- An organism which respires anaerobically.
- A phase that is common to both aerobic and anaerobic respiration.
- Chemical that removes CO₂ from air.
- Do plants respire all day or only at night?
- True or False with corrections:
- The aerobic breakdown of glucose produces 138 ATP molecules
- Lactic acid is produced during anaerobic respiration in plants.
- Carbon dioxide dissolves in lime water.
- Leaves respire anaerobically at night.
🌾 Short Answer Type
- Define:
- (a) Respiration
- (b) Combustion
- (c) ATP
- Name:
- (a) Two raw materials of respiration.
- (b) Name the two final products formed during aerobic respiration.
- (c) Two microbes that respire anaerobically.
- Full form of ATP and ADP.
- What happens to energy in respiration?
- How does tilling soil help crops?
- Why is it hard to demonstrate respiration in green plants?
- Can cell respiration occur at 65°C? Why or why not?
🌻 Long Answer Type
- Distinguish between:
- (a) Aerobic and anaerobic respiration.
- (b) Respiration and combustion.
- (c) Stomata and lenticels.
- (d) Photosynthesis and respiration.
- (e) Anaerobic respiration in plants and animals.
- How do these help in plant respiration?
- (a) Lenticels
- (b) Stomata
- (c) Root hairs
- Differences in aerobic and anaerobic respiration in plants.
- Why is respiration the reverse of photosynthesis?
- What is respiration? How is it similar/different from burning?
- Describe experiments to show:
- Germinating seeds produce heat.
- Seeds give out CO₂.
- Seeds can respire without air.
- Draw and label experimental setup for anaerobic respiration.
🌾 Structured / Application / Skill Type
- Identify reactions:
- (a) C6H12O6 + 6O2 → 6CO2 + …… + 38ATP
- (b) C6H12O6 → …… + 2CO2 + 2ATP
- Fill blanks and name processes.
State Mention the conditions required for reactions (a) and (b).
- Based on experiments:
- (a) How many flasks observed?
- (b) Purpose of limewater?
- (c) Which tubes will show milky limewater?
- (d) Purpose of setup F?
- (e) Conclusion from the experiment?
- Based on diagram apparatus:
(a) What is the role of potassium hydroxide in the test tubes?
- (b) Why rise in coloured water?
- (c) Why use boiled peas with disinfectant?
- (d) Name the biological process.
- (e) Define the process.
