Biology Essentials - Prokaryotic cells

Question 1

How is the nucleus different in prokaryotic cells?

Answer 1

Nuceloid

Question 2

What is the function of the cell wall?

Answer 2

Provides tensile strength and protection

Question 3

What are plasmids?

Answer 3

A small, extrachromosomal DNA molecule is physically separated from chromosomal DNA

Question 4

How do the sizes of ribosomes differ in prokaryotic cells?

Answer 4

In prokaryotic cells, the ribosomes are smaller, simpler and not bound by a membrane

Question 5

What assists the prokaryotic cells in movement?

Answer 5

Pili and flagella

Question 6

What do pili do?

Answer 6

Pili attach to surfaces and play a role in the transfer of genetic materials

Question 7

What are the 2 main differences between prokaryotic and eukaryotic cells?

Answer 7

Prokaryotic cells have no membrane-bound organelles so processes that usually happen in organelles take place in the cytoplasm. DNA in prokaryotes is circular, whereas DNA in eukaryotes is linear and arranged in chromosomes

Question 8

What is photosynthesis?

Answer 8

A process by plants to convert light energy into chemical energy

Question 9

What is the formula for photosynthesis?

Answer 9

Light + carbon dioxide + water = Glucose + oxygen

Question 10

What is the chemical formula for glucose?

Answer 10

C6H12O6