CELLULAR ENERGETICS

Question 1

Adenosine Triphosphate

Answer 1

• it is a molecule of adenosine bonded to three phosphates
• it has an enormous amount of energy packed into those phosphate bonds, especially the third bond

Question 2

Sources of ATP

Answer 2

• Through photosynthesis
• through cellular respiration

Question 3

Photosynthesis

Answer 3

• transformation of solar/light energy into chemical energy
• plants use their leaves to capture sunlight and make glucose
• 6CO2 + 6H2O —> C6H12 + 6O2

Question 4

Where photosynthesis occurs

Answer 4

Chloroplast
- the primary sites for photosynthesis

Stroma
- Fluid-filled structures

Grana
- inside the stroma that look like stack of coins

Thylakoids
- What makes up the grana and are like disk-like structures

Question 5

Two stages of photosynthesis

Answer 5

• the light reaction (the light-dependent reaction)
• the dark reaction (the light-independent reaction)

Question 6

What is the purpose of the light reaction and what does it produce?

Answer 6

It produces two things:
1) energy in the form of ATP and
2) electron carriers, specifically NADPH

Question 7

What are the products of the light reaction then use for?

Answer 7

• the products of the light reaction, alongside with carbon dioxide will be used in the process of the dark reaction in order to make carbohydrates

Question 8

Cellular Respiration

Answer 8

• process of breaking down glucose and making ATP
• C6H12O6 + 6O2 —> 6CO2 + 6H2O +ATP

Question 9

Types of Cellular Respiration

Answer 9

Aerobic respiration
- If ATP is made with the presence of oxygen

Anaerobic respiration
- If the oxygen is not present