Unit 6

Question 1

Mass cannot be created or destroyed but it changes form

Answer 1

Law of conservation of mass

Question 2

Sunlight is converted into energy

Answer 2

Photosynthesis

Question 3

Stored energy

Answer 3

Potential energy

Question 4

Energy in motion

Answer 4

Kinetic energy

Question 5

Wavelengths we are able to see

Answer 5

Visible light

Question 6

Wavelengths that are able to penetrate living tissue

Answer 6

Ultraviolet light

Question 7

Wavelengths also known as heat

Answer 7

Infrared

Question 8

Photosynthetic bacteria

Answer 8

Cyanobacteria

Question 9

Can only occur when sunlight is available

Answer 9

Light-dependent reactions

Question 10

Can occur when sunlight is not available

Answer 10

Light-independent reactions

Question 11

Tiny pores in leaves

Answer 11

Stomata

Question 12

Carbon sugar

Answer 12

G3P

Question 13

Enzyme that attaches the molecule of carbon dioxide to the 5-carbon molecule RUBP

Answer 13

Rubisco

Question 14

Loss of water through the stomata

Answer 14

Dehydration

Question 15

O2 is added to the Calvin cycle instead of CO2

Answer 15

Photorespiration

Question 16

Specialized storage organelles that produce and store starch

Answer 16

Amyoplasts

Question 17

Where does most of the mass plants gain come from? Who discovered this

Answer 17

Water from the soil and carbon from the air; Von helmont did the willow tree experiment to prove this

Question 18

What is the kinetic energy that plants utilize in photosynthesis? What form of potential energy are they producing

Answer 18

The conversion of sunlight to glucose; glucose

Question 19

What specific wavelengths of energy are utilized by plants in photosynthesis

Answer 19

Infrared

Question 20

What is the complete reaction for photosynthesis

Answer 20

Carbon dioxide and water are used to make sugar, which can then be used to produce starch or cellulose

    6 Co2            12 H2O 
          |             /     |            \
          |            /      |             \
  C6 H12 O6      6 H2O    6 O2

Question 21

Why is the enzyme rubisco called the bridge of life? What exactly does it do

Answer 21

Because carbon dioxide is considered a lifeless molecule and it attaches it to a different molecule

Question 22

Which pigments of visible light do plants absorb and use for photosynthesis? Which are reflected?

Answer 22

All but green; green

Question 23

What conditions lead to Photorespiration? Why is it considered a wasteful process for plants?

Answer 23

The stomata is closed; because no sugar is produced

Question 24

Compare how C4 and CAM plants are adapted to minimize the costs of Photorespiration. Give one example of each

Answer 24

C4 plants move the carbon fixation to the mesophyll. CAM plants only open their stomata at night.

C4-corn
CAM-cacti

Question 25

light, self, nutrition

Answer 25

Photoautotroph

Question 26

Know Calvin cycle

Answer 26

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