Chapyer 3.4

Question 1

What the type of organisms are the protozoans, algae, fungi, plants, and animals?
Are the eukaryotic organisms similar in terms of structure and function?

Answer 1

They are Eukaryotic and vary in structure and function

Question 2

Describe nucleus, nuclear envelop and nuclear pores in eukaryotes.

Answer 2

Nucleus: holds the dna, command center
Nuclear envelope: complex nuclear membrane
Nuclear pores: allows movement in and out of nuclear envelope.

Question 3

How many nucleus does a typical eukaryotic cell have? Which types of cells may
have 2 nuclei?

Answer 3

Eukaryotic cells usually have one nucleus. Protozoans usually have two nucleus.

Question 4

How many types of ribosomes can be found in a typical eukaryotic cell? What and
Where are they inside the cell?

Answer 4

80s ribosomes. They are usually inside the cytoplasm a and their function is to synthesize water-soluble proteins. Membrane-bound ribosomes are found attached to the rough endoplasmic reticulum and make proteins for insertion into the cell membrane or proteins destined for export from the cell.

Question 5

Which type of those organisms have cell walls in their individual cell level? What are
their roles?

Answer 5

Fungi - chitin
• Algae and Protists - biogenic silica, calcium carbonate, agar, and
carrageenan
• Plants, algae and fungi - cellulose
Cells walls provide structure and stability.

Question 6

Compare and contrast Prokaryotes (Bacteria, Archaea) and Eukaryotes.

Answer 6

Prokaryotes: high surface area to volume rate, no nucleus, single chromosome, haploid, and circular
Eukaryotes: low surface area to volume rate, nucleus, haploid or diploid, multiple chromosomes, and linear.