### Questions based on Fig. 1:
1. Name each of the items labeled I, II, III, IV, and V:
- I: Grafting knife or cutting tool
- II: Rootstock (part of the plant that provides the root system)
- III: Scion (the plant section that will be grafted onto the rootstock)
- IV: Wound healing band or grafting tape (used to secure the graft union)
- V: Grafted plant
2. State one observable feature for the stages A1, A2, B1, and B2:
- A1: Clean cut made on both rootstock and scion, preparing for grafting.
- A2: Alignment of the cambium layers of rootstock and scion.
- B1: Proper wrapping of the graft with a healing band or tape.
- B2: Successful healing of the graft union with no visible gaps.
3. Name each of the methods of propagation illustrated in A and B:
- A: Wedge grafting (A method of grafting where a wedge-shaped cut is made in both scion and rootstock.)
- B: Whip grafting (This involves making diagonal cuts on both scion and rootstock and tying them together.)
4. State two precautions to be taken in the method labeled A:
- Ensure that the cuts made on the scion and rootstock are clean and precise to allow proper fusion.
- Properly align the cambium layers of the scion and rootstock to enhance the chances of a successful graft.
---
1. Name each of the items labeled I, II, III, IV, and V:
- I: Grafting knife or cutting tool
- II: Rootstock (part of the plant that provides the root system)
- III: Scion (the plant section that will be grafted onto the rootstock)
- IV: Wound healing band or grafting tape (used to secure the graft union)
- V: Grafted plant
2. State one observable feature for the stages A1, A2, B1, and B2:
- A1: Clean cut made on both rootstock and scion, preparing for grafting.
- A2: Alignment of the cambium layers of rootstock and scion.
- B1: Proper wrapping of the graft with a healing band or tape.
- B2: Successful healing of the graft union with no visible gaps.
3. Name each of the methods of propagation illustrated in A and B:
- A: Wedge grafting (A method of grafting where a wedge-shaped cut is made in both scion and rootstock.)
- B: Whip grafting (This involves making diagonal cuts on both scion and rootstock and tying them together.)
4. State two precautions to be taken in the method labeled A:
- Ensure that the cuts made on the scion and rootstock are clean and precise to allow proper fusion.
- Properly align the cambium layers of the scion and rootstock to enhance the chances of a successful graft.
---
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### Questions based on Fig. 2:
1. Name the group of crops to which the crop labeled C belongs:
- C: This looks like a tuber (possibly a sweet potato or cassava). It belongs to root crops.
2. Give one characteristic feature of the crop labeled C:
- Root crops like C store nutrients in their enlarged underground storage organs (tubers).
3. Describe damage from the crop pest labeled D:
- D appears to be a rodent (like a rat). Rodents damage crops by gnawing on roots, tubers, and stems, causing direct crop loss and contamination.
4. State one method of controlling the pest labeled D:
- Rodent control can be done by using traps or poison baits. Alternatively, physical barriers like fencing can be used to prevent access to crops.
5. Give two ways in which the crop labeled D can be propagated by tubers:
- Tubers can be propagated by:
- Cutting the tuber into pieces, each containing at least one eye (bud), and planting them.
- Direct planting of whole tubers in the soil
1. Name the group of crops to which the crop labeled C belongs:
- C: This looks like a tuber (possibly a sweet potato or cassava). It belongs to root crops.
2. Give one characteristic feature of the crop labeled C:
- Root crops like C store nutrients in their enlarged underground storage organs (tubers).
3. Describe damage from the crop pest labeled D:
- D appears to be a rodent (like a rat). Rodents damage crops by gnawing on roots, tubers, and stems, causing direct crop loss and contamination.
4. State one method of controlling the pest labeled D:
- Rodent control can be done by using traps or poison baits. Alternatively, physical barriers like fencing can be used to prevent access to crops.
5. Give two ways in which the crop labeled D can be propagated by tubers:
- Tubers can be propagated by:
- Cutting the tuber into pieces, each containing at least one eye (bud), and planting them.
- Direct planting of whole tubers in the soil
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Q.3 I - Flat bottomed flask
II- cork
III-Thistle funnel
IV-Delivery tube
V-Beaker
VI - CO2 gas
VII - conical flask
II- cork
III-Thistle funnel
IV-Delivery tube
V-Beaker
VI - CO2 gas
VII - conical flask
More Answers for Q.2๐
More Solutions๐
Q.2
(e)
(i) State one kind of damage caused by pest D to crop C:
Answer: Pest D might cause damage like defoliation (eating the leaves), boring into the stems or fruits, or sucking plant sap, leading to weakened plant growth.
(ii) Name the group of pests to which pest D belongs:
Answer: It could belong to a group like insects, mites, or nematodes, depending on the type of pest.
(iii) Name two other organisms that belong to the group named in (e)(ii):
Answer: If the pest is an insect, other organisms could include aphids, caterpillars, or whiteflies.
(f) State two ways in which pest D could be controlled on a farm of crop C:
Answer:
Chemical control: Use of pesticides to reduce the population of pest D.
Biological control: Introducing natural predators or parasites to control the pest.
(e)
(i) State one kind of damage caused by pest D to crop C:
Answer: Pest D might cause damage like defoliation (eating the leaves), boring into the stems or fruits, or sucking plant sap, leading to weakened plant growth.
(ii) Name the group of pests to which pest D belongs:
Answer: It could belong to a group like insects, mites, or nematodes, depending on the type of pest.
(iii) Name two other organisms that belong to the group named in (e)(ii):
Answer: If the pest is an insect, other organisms could include aphids, caterpillars, or whiteflies.
(f) State two ways in which pest D could be controlled on a farm of crop C:
Answer:
Chemical control: Use of pesticides to reduce the population of pest D.
Biological control: Introducing natural predators or parasites to control the pest.
Q.3
(g) Fig. 3 is an illustration of a setup used to produce gas in the laboratory:
Name each of the parts labelled I, II, III, IV, and V:
I: Flask โ Contains the reaction mixture (Acid + Calcium carbonate).
II: Delivery tube โ Allows the gas produced from the reaction to be transferred.
III: Thistle funnel โ Used to add the acid to the flask.
IV: Delivery tube โ Transfers the gas to the next apparatus or container.
V: Gas jar โ Collects the gas being produced in the reaction.
(g) Fig. 3 is an illustration of a setup used to produce gas in the laboratory:
Name each of the parts labelled I, II, III, IV, and V:
I: Flask โ Contains the reaction mixture (Acid + Calcium carbonate).
II: Delivery tube โ Allows the gas produced from the reaction to be transferred.
III: Thistle funnel โ Used to add the acid to the flask.
IV: Delivery tube โ Transfers the gas to the next apparatus or container.
V: Gas jar โ Collects the gas being produced in the reaction.
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