Cell Structure (T1M2)

Question 1

What is the main difference between prokaryotes and eukaryotes?

Answer 1

Eukaryotes have an internal membrane network

Question 2

Describe chloroplasts

Answer 2

Have a double membrane around exterior

Filled with thylakoids

Responsible for photosynthesis

Question 3

A stack of thylakoids is called a(n):

Answer 3

Granum

Question 4

Collins, Tsui and Riordan

Answer 4

Discovered CFTR gene in 1989

Question 5

Dr. Surette

Answer 5

Studies microbial interactions

Investigates effect of normally good bacteria that become harmful in the lower airways of CF patients when combined with bad bacteria

Question 6

Ivacaftor and Lumacaftor

Answer 6

Pharmacochaperones on CF patients with rare strains of the disease

Question 7

Describe mitochondria

Answer 7

Produces ATP in plant and animal cells through cellular respiration

Consist of an inner folded membrane called cristae

Question 8

Dr Lynn Margulis (1981)

Answer 8

Chloroplasts and mitochondria were prokaryotes in the past but were invested by a larger host cell

Large cell provided protection, small cell provided energy

Endosymbiotic theory

Question 9

Define phagocytosis

Answer 9

the ingestion of bacteria or other material by phagocytes and amoeboid protozoans

Question 10

Give modern examples of phagocytosis

Answer 10

Green algae is a protist that lives in symbiosis with photosynthetic bacteria

Corals and diflagellates

Slugs eat photosynthetic algae and harvest their chloroplasts

Question 11

What are the two cycles of photosynthesis?

Answer 11

Light reactions in thylakoids in chloroplasts

Dark reaction aka Calvin cycle in stroma of chloroplasts

Question 12

Describe the formula for photosynthesis

Answer 12

6H2O + 6CO2 + light —> C6H12O6 + 6O2

NOTE: a product of photosynthesis includes water, but more is being used than produced