Exam 2 pt. 2

Question 1

Which of the following molecules is a reactant of photosynthesis

Answer 1

CO2

Question 2

What is the source of energy that provides the boost for electrons during photosynthesis?

Answer 2

Sunlight

Question 3

Which of the following statements comparing photosynthesis and cellular respiration is FALSE?

Answer 3

ATP is not produced during photosynthesis it is only produced during cellular respiration.

Question 4

Where does the light reaction occur?

Answer 4

Thylakoid membrane

Question 5

Calvin cycle occurs where?

Answer 5

Stroma

Question 6

Which of the following are produced during the light reaction of photosynthesis?

Answer 6

ATP, NADPH, & OXYGEN

Question 7

Which of the following are produced during calvin cycle?

Answer 7

GLUCOSE, ADP, & NADP+

Question 8

Carbon fixation:

Answer 8

Occurs when carbon atoms from co2 are incorporated into an organic molecule

Question 9

How many times do you go around the Calvin cycle for glucose molecules?

Answer 9

5 each time you go around

Question 10

Why are most plants green?

Answer 10

Because chlorophyll A reflects green light

Question 11

WHich of the following colors contributes the least energy to photosynthesis?

Answer 11

Green (because it’s reflecting off)

Question 12

Which of the following wavelengths of light would you expect to be reflected by chlorophyll A?

Answer 12

Green

Question 13

What do you call a molecule of light?

Answer 13

Photon

Question 14

The energy that excites the photosystems is supplied by?

Answer 14

Photons

Question 15

The electron transport chain of the light reaction:

Answer 15

Shuttles electrons from photosystem 2 to photosystem 1

Question 16

In chloroplast, ATP synthase:

Answer 16

Phosphorylates ADP —> ATP

Question 17

Where do photosynthetic organisms derive their carbon from?

Answer 17

Carbon Dioxide

Question 18

What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C3 plan?

Answer 18

They both plant synthesize glucose efficiently under dry conditions

Question 19

The ultimate source of all the food we eat and oxygen we breathe is?

Answer 19

Photosynthesis

Question 20

Plants use sugars as?

Answer 20

Fuel for cellular respiration and a starting material to make other organic molecules

Question 21

True or false: Plant cells lack mitochondria and chloroplast?

Answer 21

False

Question 22

True or false: Plant cells lack mitochondria but have chloroplast?

Answer 22

False

Question 23

True or false: Plants cells have mitochondria and cholorplast?

Answer 23

TRUE

Question 24

Global warming due to the greenhouse effect may be which of the following?

Answer 24

Moderated by photosynthesis which removes carbon dioxide from atmosphere

Question 25

which of the following statements about the greenhouse effect is true?

Answer 25

Exacerbated/Increased by use of fossil fuel

Question 26

Which of the following is NOT an expectation of global climate change?

Answer 26

lower sea levels (it will cause higher sea levels)

Question 27

It has been suggested that global warming could be halted by fertilizing the ocean to increase growth of algae, how might this affect the greenhouse effect?

Answer 27

Algal photosynthesis would use up more CO2 which traps heat

Question 28

What is the structure of a plant where gas exchanges CO2 and Oxygen?

Answer 28

STOMA

Question 29

What is the structure of a plant where gas exchanges CO2 and Oxygen?

Answer 29

STOMA

Question 30

In plants the vascular tissue made up of cells that transport water and minerals through the roots up thriugh the plants is called?

Answer 30

Xylem