11. Three students are talking about cells. Their conversation is as below. Mei Foong: In my opinion, all organisms consist of one cell only. Keetha: My opinion is that some organisms consist of one cell while other organisms consist of many cells to carry out various functions. Hidayah: I do not agree. All living things are complex and consist of many cells to carry out various functions. In your opinion, which student's statement is correct? Give reasons to support your choice.
In my opinion, Keetha's statement is correct. Some organisms consist of one cell while other organisms consist of many cells to carry out various functions. This is because the number of cells an organism has is dependent on its complexity and the functions it needs to carry out. Single-celled organisms like bacteria and protozoa can carry out all their life processes with just one cell, while complex organisms like humans, animals, and plants require many cells to carry out various functions such as respiration, digestion, and reproduction. Therefore, the number of cells an organism has is not fixed and can vary depending on the organism's complexity and the functions it needs to carry out.