Photosynthesis

Question 1

How does ATP transfer energy?

Answer 1

Transfers energy from breaking down food. The energy is released when a phosphate group is removed then ADP is turned into ATP when a phosphate group is added then repeat.

Question 2

What molecule is commonly broken down to make ATP

Answer 2

Carbohydrates

Question 3

What molecule is least likely to be broken down to make ATP

Answer 3

Protein

Question 4

Chemosynthesis

Answer 4

chemical energy is used to build carbon-based molecules

Question 5

Chlorophyll

Answer 5

A molecule that absorbs light energy

Question 6

What parts of the chloroplasts does photosynthesis occur in

Answer 6

Stroma and thylakoid

Question 7

Light-dependent reactions

Answer 7

Takes place in the thylakoid, water/sunlight is needed, energy is transferred along the thylakoid membrane to light-independent reactions, and oxygen is released.

Question 8

Light independent reactions

Answer 8

Makes sugars, takes place in stroma, needs carbon dioxide, and uses energy to build a sugar through chemical reactions

Question 9

Equation of photosynthesis

Answer 9

6CO2 + 6H20 ( sunglight) = C6H12O6 + 6O2

Question 10

Photosystem II

Answer 10

First chlorophyll absorbs energy, then electrons replace e- lost by chlorophyll while H2O is hydrolyzed and oxygen enters the atmosphere while hydrogen ions go across the thylakoid membrane

Question 11

What happens to the electrons in photosystem II?

Answer 11

they are moved from protein to protein and their energy is used to pump hydrogen ions from outside to inside the thylakoid membrane

Question 12

Photosystem I

Answer 12

First chlorophyll absorbs energy, then energized electrons are used to make NADPH from NADP after NADPH is transferred to light-independent reactions

Question 13

What is the reactant in light-dependent reactions?

Answer 13

Water

Question 14

What do light-dependent reactions produce?

Answer 14

ATP; when hydrogen ions flow through the thylakoid membrane ATP synthase is used to make ATP

Question 15

What happens in light-independent reactions?

Answer 15

Carbon dioxide molecules enter the Calvin cycle to form a 5 carbon molecule, ATP Is added to split the 6 carbon molecule into 3 and they leave the cycle every 3 CO2 molecule that enters

Question 16

Heterotrophs

Answer 16

get energy from eating other organisms

Question 17

Autotrophs

Answer 17

produces its own energy

Question 18

What does a plant do?

Answer 18

store and collect light energy, need to get building block atoms from the atmosphere ( C, H, O, N), produce organic molecules for growth

Question 19

How do plants obtain raw materials?

Answer 19

The leaves collect sunlight, CO2 is collecting from stomates, H2O is from the uptake of roots, and nutrients like N or P from roots

Question 20

What type of process are photosynthesis and cellular respiration

Answer 20

Photo- endergonic cellular- exergonic

Question 21

Factors that affect photosynthesis are?

Answer 21

temperature, pH levels, amount of light, shortage of reactants `

Question 22

noncyclic photophosphorylation

Answer 22

Photosystem 1 and 2 are both working properly

Question 23

cyclic photophosphorylation

Answer 23

the electrons cycle back to p2 and make more ATP instead of NADPH because p1 cant pass electrons to NADP