Unit 1 - Eukaryotic cells (I)

All organisms are made up of more than one cell.

• True

• False

Answer explanation

There are unicellular organisms e,g, yeast.

Prokaryotic cells do not have a nucleus.

• True

• False

All cells have a cell membrane, cytoplasm and ribosomes.

• True

• False

Name this organelle.

(a)  

What is the function of this organelle?

• carries out respiration

• controls cell activities

• controls movement of substances in and out of cell

• protects the cell from injury and gives the cell a regular shape

What is the name of the dense structure in the middle of this organelle?

• chromatin

• nucleoplasm

• nuclear membrane

• nucleolus

• chromosome

Chromatin is visible under the light microscope.

• True

• False

Chromsome condense to form chromatin during cell division.

• True

• False

Answer explanation

Chromatin will condense to form chromosomes during cell division.

Which of the following biomolecules are found in the plasma membrane?

• phospholipid

• proteins

• cholesterol

• carbohydrates

What is the name of the model which describes the structure of cell membrane?

(a)