In Semester Exam L4 Eukaryotes

Lesson 4

What are some of the differences between a prokaryote cell, and a eukaryote cell?

A eukaryote cell is much bigger

Eukaryotes have a nuclear envelope

Eukaryotes have membrane bound organelles in the cytoplasm

The complexity of flagella is greater in eukaryotes

Eukaryotes have greater complexity and greater structure than prokaryotes

Describe the nucleus of a eukaryotic cell

The nucleus is the control centre of cells.

It contains the genetic material, DNA, organised in chromosomes.

It is the site of synthesis of RNA.

It is highly regulated and organised.

What is the cytoplasm in a eukaryotic cell?

If the nucleus is the control centre of the cell, the cytoplasm is the factory floor. It contains the endomembrane system, ribosomes, cytoskeleton, mitochondria and plastids and plasma membrane.

What is the function of the cytoskeleton?

The cytoskeleton allows activities within the cell to occur.

It provides structural framework.

It is also responsible for cell movement.

It control cell division.

Describe mitochondria

Mitochondria have their own DNA

Mitochondria are the powerhouse of cells

Mitochondria generate ATP

What are chloroplasts?

Chloroplasts are plastids

They are found in plant and algal cells

They convert light energy to chemical energy

Chloroplasts have their own DNA

What’s an example of a unicellular eukaryote?

Yeasts and algae are examples of unicellular eukaryotes.