Activity 2.3 Let us investigate (Page 12) What similarities and differences did you observe between the cells of onion peel Class 8

Activity 2.3 Let us investigate (Page 12) Class 8

Activity 2.3 Let us investigate (Page 12)

Question 1.

What similarities and differences did you observe between the cells of onion peel in Activity 2.2 and human cheek cells in Activity 2.3? Class 8

Answer:

Similarities: Both onion peel cells arid human cheek cells have a cell membrane, cytoplasm, and a nucleus.

Differences:

1. Onion cells have a cell wall and are rectangular, while cheek cells do not have a cell wall and are round or irregular shapes.
2. Onion cells are plant cells, so they may have chloroplasts, but cheek cells are animal cells and do not have chloroplasts.

Question 2.

Do different animal cells also vary in their shape and structure? Class 8

Answer:

Yes, different animal cells also vary in their shape and structure.

Question 3.

Why do cells look so different from each other? Does the shape and structure of a cell relate to its function? Class 8

Answer:

Why cells look different: Cells look different because each type has a specific function to do in the body or plant.

Shape and function link: Yes, the shape of a cell helps it do its work better—like how red blood cells are round to carry oxygen easily.