2.4: Fall Coloration And Wilting

Question 1

Carotene

Answer 1

Yellow-orange

Question 2

Anthocyanin

Answer 2

Red, blue, and purple

Question 3

Abscission layer

Answer 3

Layer of cells which forms at base of petioles and severs the connections between petiole and stem

Question 4

Factors affecting the rate of transpiration

Answer 4

Humidity
Temperature
Intensity of sunlight 
Wind speed
Amount of carbon dioxide in air
Amount of soil water available

Question 5

Turgor pressure

Answer 5

Water within guard cells produces a pressure

Question 6

Turgid

Answer 6

Guard cells when they are filled with water and the stomata open

Question 7

Temporary wilting

Answer 7

Occurs when transpiration takes place faster than the roots can absorb soil water, causing a plant to lose its turgor

Question 8

Permanent wilting

Answer 8

Results in loss of leaves or death of plant

Question 9

Special leaf

Answer 9

One which has a special design for a special task

Question 10

Tendrils

Answer 10

Special leaves of vines which have the unique function of holding the vine upright by coiling around some support structure

Question 11

Spines

Answer 11

Of cactuses, special protective leaves which have no chlorophyll

Question 12

Insectivorous plants

Answer 12

Venus’s-flytrap, sundew, pitcher plant, bladderwort

Question 13

Xanthophyll

Answer 13

Yellow