EVERYDAY SCIENCE - CELLS

Question 2

Ace was given two different specimens of cells by his teacher and he was tasked to identify them as either plant cells or animal cells.

cells oeq2.jpg
Answer 1

Fill in the blanks with the keywords provided below.
[trap sunlight] • [attract] • [chloroplasts] • [cell parts] • [make food] • [chlorophyll] • [pollination] • [cell wall]

a) To identify plant cells, what are the characteristics that Ace has to look out for?

Answer:

He has to look out for that are unique to plant cells. Only plant cells have and .


b) Ace was given an additional specimen of a flower petal cell and he observed that there was no chloroplast. Why do you think that flower petal cells usually contain little or even no chloroplast?

Answer:

Chloroplasts are usually found in leaf cells which need to in order to (photosynthesise).
Flower petals should be brightly coloured to animals for .
They should not be green as it will cause them to blend into the surroundings. Therefore, they do not have chloroplasts with green in their cells.




DO YOU KNOW plain.png

“Chlorophyll makes leaves look green as it does not absorb the green wavelengths of white light. Instead the green light wavelength is reflected from the plant into our eyes, so it appears green.”