9.1 Cells

Question 1

Define Prokaryote

Answer 1

A prokaryote is a single-celled organism that lacks a nucleus and other organelles. The word prokaryote comes from the Greek word pró meaning “before”.

Question 2

Define Eukaryote

Answer 2

A eukaryote is an organism or cell that has a nucleus and membrane-bound organelles. The word “eukaryotic” means “true nucleus”.

Question 3

Give the function of a Spongy Parenchyma

Answer 3

The plant cells take in carbon dioxide from the air; using energy from the sun, they make it into sugar. Often they store things like nutrients and water.

Question 4

Give the function of an intestinal absorptive cell

Answer 4

These cells take up nutrients from food. They are also a part of a protective barrier that keeps partially digested food inside the intestinal tube and away from sensitive tissues.

Question 5

What cells have a cell wall? A cell membrane?

Answer 5

Bacteria cell, and Plant cell. All cells.

Question 6

What do all cells have?

Answer 6

Cell membrane, ribosomes, cytoplasm, and DNA