Worksheet comparing animal and plant cell structures and functions.

Let me work through this problem step by step.

Part a: Labeling the diagrams

Looking at the two cell diagrams (animal cell on left, plant cell on right), I need to identify which structures are present in each and match them with the labels provided.

The labels given are:
- CELL WALL
- CELL MEMBRANE
- CHLOROPLAST
- CYTOPLASM
- NUCLEUS

For the Animal Cell:
- The outer boundary is the cell membrane
- The dark circle in the center is the nucleus
- The jelly-like substance filling the cell is the cytoplasm

For the Plant Cell:
- The outermost rigid layer is the cell wall
- Inside the cell wall is the cell membrane
- The dark circle is the nucleus
- The small green oval structures are chloroplasts
- The jelly-like substance is the cytoplasm

Now I need to determine which label goes to which line. Looking at the diagram layout:

Top to bottom lines pointing to both cells or specific cells:

1. First line (top) - points to the outer structure of the plant cell → CELL WALL
2. Second line - points to the boundary of both cells → CELL MEMBRANE
3. Third line - points to the dark circle in both cells → NUCLEUS
4. Fourth line - points to the small structures in the plant cell only → CHLOROPLAST
5. Fifth line (bottom) - points to the jelly-like substance in both cells → CYTOPLASM

Part b: Functions of cell parts

i. Mitochondrion: Produces energy for the cell through cellular respiration
- Answer: to produce energy / site of respiration

ii. Vacuole: Stores water, nutrients, and waste; helps maintain cell shape
- Answer: to store substances / storage

iii. Chloroplast: Contains chlorophyll and performs photosynthesis
- Answer: to carry out photosynthesis / makes food for the plant

iv. Nucleus: Controls cell activities and contains genetic material (DNA)
- Answer: to control the cell / contains DNA / controls cell activities

v. Cell membrane: Controls what enters and leaves the cell
- Answer: to control what enters and leaves the cell / regulates movement of substances

Final Answer:

a. Labels (from top to bottom):
1. CELL WALL
2. CELL MEMBRANE
3. NUCLEUS
4. CHLOROPLAST
5. CYTOPLASM

b. Functions:
i. The function of the mitochondrion is to produce energy for the cell (site of respiration)

ii. The function of the vacuole is to store water, nutrients, and waste products

iii. The function of the chloroplast is to carry out photosynthesis (makes food for the plant)

iv. The function of the nucleus is to control cell activities and contain genetic material (DNA)

v. The function of the cell membrane is to control what enters and leaves the cell