Topics 06-08: Plant Nutrition, Transport, and Responses

Question 1

• Carbs enter sieve tubes with active transport (energy from companion cells)
• Lowered water potential brings water in and pushes it through phloem

Answer 1

Phloem loading

Question 2

Where does energy come from in phloem loading

Answer 2

Companion cells

Question 3

Carbs enter sieve tubes in phloem loading, what happens to water potential

Answer 3

Lowered

Question 4

Macronutrients:

Answer 4

C O H N K

Ca Mg P S

Question 5

Micronutrients:

Answer 5

Cl Fe
B Zn Mn
Cu Ni Mo

Question 6

Mycorrhizae are for intake of mainly what nutrients

Answer 6

Phosphorous and micronutrients

Question 7

Links embryo to nutrient tissue in seed

Answer 7

Suspensor

Question 8

Inhibits leaf abscission

Answer 8

Auxin

Question 9

Bends and elongates stems

Answer 9

Auxin

Question 10

Promotes adventitious roots

Answer 10

Auxin

Question 11

Promotes lateral bud dormancy

Answer 11

Auxin

Question 12

Plant hormone that promotes cell differentiation

Answer 12

Cytokinin

Question 13

Turns yellow leaves green

Answer 13

Cytokinin

Question 14

Promotes lateral buds into branches

Answer 14

Cytokinin

Question 15

Plant hormone that makes foot utilization enzymes

Answer 15

Gibberellins

Question 16

Hastens seed germination

Answer 16

Gibberellins

Question 17

Slows root and stem growth

Answer 17

Ethylene

Question 18

Suppresses growth, promoting seed dormancy

Answer 18

Abscisic acid

Question 19

Turns green leaves yellow

Answer 19

Abscisic acid

Question 20

Plant hormone found in mature parts

Answer 20

Abscisic acid

Question 21

Hormone for plant defense against pathogens

Answer 21

Salicylic acid

Oligosaccharins

Question 22

Plant hormone similar to auxins and gibberellins

Answer 22

Brassinosteroids

Question 23

Response to touch

Answer 23

Thigmotropism

Question 24

Result of a seedling growing in the dark

Long and pale shoots

Answer 24

Etiolation