Parts of a Cell Worksheet with diagram and labeling exercise.

Let’s solve this step by step.

We are given a list of cell parts on the left (Column A) and their functions or descriptions in Column B. We need to match each part with its correct description.

Here’s how we’ll do it:

1. Read each term in Column A.
2. Think about what that part does in a cell.
3. Find the matching description in Column B.
4. Write the letter next to the number.

Let’s go one by one:

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1. nucleus → This is the control center of the cell. It holds DNA.
→ Matches g. contains genetic material

2. nucleolus → Inside the nucleus, makes ribosomes.
→ Matches h. site of ribosome production

3. nuclear envelope → The membrane around the nucleus.
→ Matches i. double membrane surrounding nucleus

4. chromatin → DNA + proteins; becomes chromosomes when dividing.
→ Matches j. DNA-protein complex

5. cytoplasm → Jelly-like stuff inside cell where organelles float.
→ Matches k. gel-like substance filling cell

6. mitochondria → Powerhouse — makes energy (ATP).
→ Matches l. produces ATP for cell energy

7. rough endoplasmic reticulum → Has ribosomes; makes proteins.
→ Matches m. studded with ribosomes; protein synthesis

8. smooth endoplasmic reticulum → No ribosomes; makes lipids, detoxifies.
→ Matches n. lipid synthesis and detoxification

9. Golgi apparatus → Packages and ships proteins.
→ Matches o. modifies, sorts, packages proteins

10. lysosome → Digests waste and old parts.
→ Matches p. breaks down waste materials

11. vacuole → Stores water, food, waste. Big in plant cells.
→ Matches q. storage sac for water, nutrients, waste

12. chloroplast → Only in plants; does photosynthesis.
→ Matches r. site of photosynthesis in plant cells

13. cell wall → Rigid outer layer in plants; gives support.
→ Matches s. rigid structure outside plant cell membrane

14. cell membrane → Controls what enters/exits cell.
→ Matches t. regulates movement into/out of cell

15. ribosome → Makes proteins. Can be free or on ER.
→ Matches u. site of protein synthesis

16. centriole → Helps divide cell; found in animal cells.
→ Matches v. helps organize cell division in animals

17. cilia → Tiny hairs that move things across cell surface.
→ Matches w. short hair-like structures for movement

18. flagellum → Long tail for swimming (like sperm).
→ Matches x. long whip-like structure for locomotion

19. microvilli → Finger-like projections to increase surface area.
→ Matches y. increases surface area for absorption

20. vesicle → Small bubble that carries stuff around.
→ Matches z. small membrane-bound transport sac

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Now let’s write the answers clearly:

Final Answer:
1. g
2. h
3. i
4. j
5. k
6. l
7. m
8. n
9. o
10. p
11. q
12. r
13. s
14. t
15. u
16. v
17. w
18. x
19. y
20. z