Lecture 2 - White light/heat

Question 1

Use of CO₂ in organisms

Answer 1

Can be used to make amino acids and then proteins.

Question 2

Use of NH₃ in organisms

Answer 2

Can be used to make fatty acids and then they can be used to make phospholipids for the phospholipid bilayer.

Question 3

Use of CH₄ in organisms

Answer 3

Can be used to make sugars and then used to make certain compounds that form a cell wall such as chitin and cellulose.

Question 3

Use of SO₂ in organisms

Answer 3

Can be used to form nucleotides which then form nucleic acids and make genetic acids.

Sulfur is only present in Methionine (the “start” amino acid) and cysteine.

Question 4

Electron transport chain

Answer 4

Revise photosynthesis

Question 5

Rhodopsin

Answer 5

Main rod cells in the retina. It is the main component of vision.

Question 6

Bacteriorhodopsin

Answer 6

A membrane protein in the retina. It absorbs and uses light energy to move hydrogens. This change in the proton gradient is converted to chemical energy.

This is followed by more processes and then gives us vision (may learn more later idk)