CBSE Class 7 Science Reproduction in Plants Worksheet Set A - Free Printable

Let's analyze the given matching problem between Column A and Column B. The task is to correctly match each item in Column A with its corresponding term in Column B based on biological concepts related to plant propagation and reproduction.

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Column A:

1. Sweet potato
2. Potato
3. Leaf buds
4. Grafting
5. Tissue culture
6. Bud
7. Fragmentation

Column B:

a. Micropropagation
b. Bryophyllum
c. Artificial propagation
d. Yeast
e. Spirogyra
f. Adventitious
g. Stem tuber

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Now, let’s go through each item in Column A and determine the correct match:

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1. Sweet potato → ?

- Sweet potato is a root tuber, not a stem tuber.
- But in the options, "g. Stem tuber" is listed — this is incorrect for sweet potato.
- However, sweet potato is often associated with adventitious roots that form tubers.
- But more importantly, sweet potato can be propagated via cuttings, but it doesn't directly match any of the terms clearly.
- Wait — actually, sweet potato is not a stem tuber; potato is.
- So let’s reevaluate.

Wait — perhaps there's a confusion here.

Let’s look at Potato first.

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2. Potato → g. Stem tuber

- Yes! The potato is a stem tuber (an underground stem that stores food).
- So:
- 2 → g

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1. Sweet potato → ?

- Sweet potato is a modified root (a root tuber), not a stem.
- But “Stem tuber” is already taken by potato.
- Is there another option?

Wait — maybe Sweet potato is not directly matched to anything? But we have to match.

But looking at the diagram, there's already a line from Sweet potato to Micropropagation?

No — let's check the lines drawn in the image.

But since you mentioned "I uploaded an image", and I don’t see it, but you provided a textual representation with lines drawn.

From your text:

```
1. Sweet potato → a. Micropropagation
2. Potato → g. Stem tuber
3. Leaf buds → f. Adventitious
4. Grafting → c. Artificial propagation
5. Tissue culture → a. Micropropagation
6. Bud → b. Bryophyllum
7. Fragmentation → e. Spirogyra
```

Wait — multiple items are pointing to same letters? That can’t be.

Let’s clarify.

Looking at the connections in your text:

- 1. Sweet potato → a. Micropropagation
- 2. Potato → g. Stem tuber
- 3. Leaf buds → f. Adventitious
- 4. Grafting → c. Artificial propagation
- 5. Tissue culture → a. Micropropagation
- 6. Bud → b. Bryophyllum
- 7. Fragmentation → e. Spirogyra

But now a. Micropropagation is linked to both Sweet potato and Tissue culture — that’s a problem.

So likely, the correct matches should be:

Let’s do it properly.

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Correct Matching Based on Biology:

#### 1. Sweet potato → ?
- Sweet potato is a root tuber.
- But in Column B, there's no "Root tuber".
- However, sweet potato can be propagated vegetatively, but it is not typically used in micropropagation.
- Wait — tissue culture is used for many plants including sweet potato, but micropropagation is the same as tissue culture.
- But tissue culture is #5.

Let’s try:

#### 5. Tissue culture → a. Micropropagation

Yes — micropropagation is another name for tissue culture.
So:
- 5 → a

Then Sweet potato cannot go to a.

But in your diagram, Sweet potato is connected to a — which may be wrong.

Let’s reconsider.

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Let's match each one logically:

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#### 1. Sweet potato → ?

- Sweet potato is a modified root (root tuber) used for vegetative propagation.
- But no direct match in B except possibly g. Stem tuber — but that’s for potato.
- Wait — perhaps Sweet potato is not directly matched to a biological structure like potato?
- But maybe it's a trick.

Wait — Bryophyllum (option b) produces plantlets from leaf margins — so leaf buds?

Hold on.

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#### 3. Leaf buds → ?

- "Leaf buds" — this might refer to adventitious buds on leaves.
- Bryophyllum has adventitious buds on leaf margins.
- So Leaf buds → Bryophyllum?

But in your diagram, Leaf buds → f. Adventitious

Hmm.

Let’s define:

- Adventitious refers to structures that arise from non-traditional places (like roots from stems or buds from leaves).
- Leaf buds — if they’re adventitious buds on leaves, then Leaf buds → f. Adventitious makes sense.

But Bryophyllum is a plant that has adventitious buds on leaves.

So perhaps:
- Bryophyllum → Leaf buds?

But Column B lists b. Bryophyllum, and Column A has 3. Leaf buds

So 3. Leaf buds → b. Bryophyllum? Or → f. Adventitious?

Possibly both.

But Leaf buds are adventitious in nature.

So 3. Leaf buds → f. Adventitious — yes.

And Bryophyllum is a plant where leaf buds occur.

So Bryophyllum is an example of a plant with leaf buds.

Thus:
- 6. Bud → b. Bryophyllum? No — bud is general.

Wait — let's list all:

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Step-by-step correct matching:

#### 1. Sweet potato
- It is a root tuber, but not a stem tuber.
- But Column B has g. Stem tuber — which is for potato.
- So Sweet potato doesn’t match g.
- But Sweet potato is often propagated using cuttings or tissue culture.
- However, tissue culture is used for many plants.
- But micropropagation = tissue culture.
- So Tissue culture → a. Micropropagation — correct.

But Sweet potato is not directly linked to micropropagation unless specified.

Wait — perhaps the intended answer is:

- Sweet potato → g. Stem tuber? No — that’s wrong.

Wait — potato is a stem tuber — so 2 → g

So 2. Potato → g. Stem tuber ✔

---

#### 1. Sweet potato → ?

- Sweet potato is a root tuber, but not in column B.
- But column B has d. Yeast — irrelevant.
- e. Spirogyra — algae, reproduces by fragmentation.
- f. Adventitious — means arising from unusual places.
- g. Stem tuber — taken by potato.

So perhaps Sweet potato is not matched to any? But it must be.

Wait — maybe Sweet potato is used in tissue culture?

But tissue culture is #5.

Perhaps Sweet potato → Artificial propagation? But artificial propagation is grafting, etc.

Alternatively, Sweet potato can be propagated by cuttings — which is artificial propagation?

But grafting is a type of artificial propagation.

Let’s see:

#### 4. Grafting → c. Artificial propagation

Yes — grafting is a method of artificial propagation.

So 4 → c

#### 5. Tissue culture → a. Micropropagation

Yes — micropropagation is tissue culture.

So 5 → a

Now, Sweet potato — is it used in micropropagation? Possibly, but not uniquely.

But perhaps Sweet potato is not the best fit.

Wait — maybe the correct match is:

- Sweet potato → g. Stem tuber — but that’s incorrect because sweet potato is a root tuber, not stem tuber.

So that’s wrong.

Unless the question has a typo.

Wait — perhaps Sweet potato is meant to be matched to g. Stem tuber — but that’s biologically incorrect.

Alternatively, Potato is stem tuber → g

Sweet potato is root tuber — but not in B.

So maybe Sweet potato → f. Adventitious?

Because adventitious roots form the tuber?

But adventitious is a property, not a structure.

Wait — bud → adventitious?

Yes — adventitious buds.

So 6. Bud → f. Adventitious?

But in your diagram, 6. Bud → b. Bryophyllum

That seems odd.

Wait — Bryophyllum is a plant that has adventitious buds on leaves.

So Bryophyllum is an example of a plant with leaf buds.

So:

- 3. Leaf buds → b. Bryophyllum — possible
- 6. Bud → f. Adventitious — possible

But Bud is general.

Better:

- Leaf buds → Bryophyllum (because Bryophyllum has leaf buds)
- Bud → Adventitious (because buds can be adventitious)

But adventitious is a term, not a plant.

So:

- f. Adventitious → describes buds or roots that develop from non-traditional sites.

So 6. Bud → f. Adventitious — okay.

But 3. Leaf buds → b. Bryophyllum — also okay.

But Bryophyllum is a plant, so Leaf buds (as in, buds on leaves) → Bryophyllum as an example.

Similarly, Fragmentation → e. Spirogyra

Because Spirogyra (algae) reproduces by fragmentation.

So:

- 7. Fragmentation → e. Spirogyra ✔

d. Yeast → yeast reproduces by budding — so Bud → d. Yeast?

Ah! That’s a key point.

Yeast reproduces by budding — so bud is associated with yeast.

So 6. Bud → d. Yeast

But in your diagram, Bud → b. Bryophyllum

That’s confusing.

Let’s resolve:

Final correct matching:

| Column A | Column B | Reason |
|---------|----------|--------|
| 1. Sweet potato | ??? | Not clear — but sweet potato is a root tuber, not in B. Maybe it's a mistake. |
| 2. Potato | g. Stem tuber | Potato is a stem tuber — correct |
| 3. Leaf buds | b. Bryophyllum | Bryophyllum has leaf buds (plantlets on leaves) |
| 4. Grafting | c. Artificial propagation | Grafting is a method of artificial propagation |
| 5. Tissue culture | a. Micropropagation | Micropropagation = tissue culture |
| 6. Bud | d. Yeast | Yeast reproduces by budding |
| 7. Fragmentation | e. Spirogyra | Spirogyra reproduces by fragmentation |

Now, what about f. Adventitious?

It’s not yet matched.

Adventitious refers to adventitious roots/buds — so Leaf buds are adventitious, but we already matched Leaf buds → Bryophyllum

But f. Adventitious is still unassigned.

Wait — Leaf buds could be adventitious — so perhaps 3. Leaf buds → f. Adventitious

But Bryophyllum is the plant that has them.

So conflict.

But in matching questions, usually we match concept to concept or example to example.

So better:

- Leaf buds → Bryophyllum (as an example)
- Bud → d. Yeast (budding in yeast)
- Adventitious → ? — perhaps Leaf buds are adventitious, so Leaf buds → f. Adventitious

But Bryophyllum is a plant, so it's a different kind of match.

Wait — f. Adventitious is a term, so it should match to something that is adventitious.

For example:
- Adventitious buds → f. Adventitious
- But "Leaf buds" are adventitious in Bryophyllum.

So 3. Leaf buds → f. Adventitious — correct.

Then Bryophyllum is an example of a plant with leaf buds — so Bryophyllum → Leaf buds

But in the table, Column B has b. Bryophyllum, so we need to match it to something in A.

So 3. Leaf buds → b. Bryophyllum — that would mean Leaf buds are Bryophyllum — which is incorrect.

Leaf buds are not Bryophyllum.

Bryophyllum is a plant that has leaf buds.

So the correct match is:
- Bryophyllum → Leaf buds — but in the format, it's Column A to Column B.

So 3. Leaf buds should match to b. Bryophyllum only if Bryophyllum is defined as having leaf buds.

But it's better to say:
- Bryophyllum → Leaf buds — but that’s not how it's structured.

Wait — perhaps b. Bryophyllum is meant to be matched to Leaf buds as an example.

So 3. Leaf buds → b. Bryophyllum — acceptable in some contexts.

But more accurately, Bryophyllum is the plant that produces leaf buds, so Leaf buds are found in Bryophyllum.

So 3. Leaf buds → b. Bryophyllum — okay.

But then f. Adventitious is left.

What about Sweet potato?

Is Sweet potato an example of adventitious? Yes — it develops from adventitious roots.

But adventitious is a term.

So Sweet potato → f. Adventitious?

Not directly.

Wait — Stem tuber is for potato.

Sweet potato is a root tuber, but not in B.

But d. Yeast — yeast reproduces by budding, so bud → yeast

So 6. Bud → d. Yeast

Then Bryophyllum → Leaf buds — 3 → b

Fragmentation → e. Spirogyra — yes

Grafting → c. Artificial propagation — yes

Tissue culture → a. Micropropagation — yes

Potato → g. Stem tuber — yes

Now, Sweet potato — what’s left?

Column B has: a, b, c, d, e, f, g

Used:
- a → tissue culture
- b → leaf buds
- c → grafting
- d → bud
- e → fragmentation
- g → potato
- f → unused

So f. Adventitious is unmatched.

But Sweet potato → f. Adventitious?

Because sweet potato tuber develops from adventitious roots.

So yes — Sweet potato is formed by adventitious roots.

So 1. Sweet potato → f. Adventitious

That makes sense.

So final correct matching:

1. Sweet potato → f. Adventitious
2. Potato → g. Stem tuber
3. Leaf buds → b. Bryophyllum
4. Grafting → c. Artificial propagation
5. Tissue culture → a. Micropropagation
6. Bud → d. Yeast
7. Fragmentation → e. Spirogyra

But wait — Bud → d. Yeast — yes, because yeast reproduces by budding

Leaf buds → b. Bryophyllum — because Bryophyllum has leaf buds

Fragmentation → e. Spirogyra — Spirogyra reproduces by fragmentation

Tissue culture → a. Micropropagation — same thing

Grafting → c. Artificial propagation — grafting is artificial

Potato → g. Stem tuber — correct

Sweet potato → f. Adventitious — because it arises from adventitious roots

But adventitious is a property, not a structure.

But it’s acceptable.

However, in your original diagram, you have:

- Sweet potato → a. Micropropagation
- Tissue culture → a. Micropropagation — conflict

So that’s wrong.

Correct should be:

- Tissue culture → a. Micropropagation
- Sweet potato → f. Adventitious

Also, Bud → d. Yeast, not b. Bryophyllum

Leaf buds → b. Bryophyllum

So your current diagram has errors.

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✔ Correct Answer:

| Column A | Column B |
|----------|----------|
| 1. Sweet potato | f. Adventitious |
| 2. Potato | g. Stem tuber |
| 3. Leaf buds | b. Bryophyllum |
| 4. Grafting | c. Artificial propagation |
| 5. Tissue culture | a. Micropropagation |
| 6. Bud | d. Yeast |
| 7. Fragmentation | e. Spirogyra |

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Explanation:

- Sweet potato: Develops from adventitious roots, so it's associated with adventitious structures.
- Potato: A stem tuber (underground stem modification).
- Leaf buds: Found in Bryophyllum (plantlets on leaf margins).
- Grafting: A method of artificial propagation.
- Tissue culture: Also known as micropropagation.
- Bud: In yeast, reproduction occurs by budding.
- Fragmentation: Spirogyra (algae) reproduces by breaking into fragments.

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Summary of Corrections:

- Sweet potato → f. Adventitious (not micropropagation)
- Tissue culture → a. Micropropagation (correct)
- Bud → d. Yeast (not Bryophyllum)
- Leaf buds → b. Bryophyllum (correct)
- Fragmentation → e. Spirogyra (correct)
- Grafting → c. Artificial propagation (correct)
- Potato → g. Stem tuber (correct)

Your original diagram has some mismatches — especially Sweet potato → micropropagation and Bud → Bryophyllum.

✔ The corrected matching is as above.