Can someone please do this worksheet for me it will be really helpful!
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Answer:
1. The difference is The outermost layer which surrounds the plasma membrane of an onion cell is a rigid cell wall made up of cellulose while in cheek cells, no such cell wall is present.
2. one cell
3. Protoplasm is the colorless material consisting of the living part of a cell, including the cytoplasm, nucleus, and other organelles.
Cytoplasm is the fluid that consists of all of the contents outside of the nucleus sand enclosed within the cell membrane of a cell.
4. Biological membranes have three primary functions:
(1) they keep toxic substances out of the cell;
(2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the ...
5. Microscope
6. True
7. True
8. The structure of the nucleus includes nuclear membrane, chromosomes, nucleoplasm, and nucleolus. ... The Nucleus is detached from the rest of the cell or the cytoplasm by a nuclear membrane.
9. Different organelles play different roles in the cell — for instance, mitochondria generate energy from food molecules; lysosomes break down and recycle organelles and macromolecules; and the endoplasmic reticulum helps build membranes and transport proteins throughout the cell.
10. The nerve cells are elongated as their main task is to transmit impulses over long distances. Nerves pick up electrical impulses from all over the body, and these impulses must travel along an unbroken path to reach the brain. And for the same reason,nerve cells do not divide.
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