POST ASSESMENT 9-4

WHAT IS THE PHENOMENON CALLED WHEN SUNFLOWERS TURN TO FACE THE SUN?
A) PHOTOSYNTHESIS
B) PHOTOTROPISM
C) GERMINATION
D) POLLINATION

• A

• B

• C

• D

WHY DO SUNFLOWERS FOLLOW THE SUN THROUGHOUT THE DAY?
A) TO AVOID INSECTS
B) TO MAXIMIZE LIGHT ABSORPTION FOR PHOTOSYNTHESIS
C) TO COOL THEMSELVES
D) TO ATTRACT MORE BIRDS

• A

• B

• C

• D

AT WHAT STAGE OF GROWTH DO SUNFLOWERS TYPICALLY EXHIBIT PHOTOTROPISM?
A) SEED STAGE
B) LEAF STAGE
C) BUD STAGE
D) MATURE STAGE

• A

• B

• C

• D

Which part of the sunflower plant is primarily responsible for detecting sunlight?
A) Roots
B) Stem
C) Leaves
D) Flowers

• A

• B

• C

• D

What happens to a sunflower if it is planted in a location with very little sunlight?
A) It will grow taller than usual
B) It will thrive and produce more flowers
C) It may become leggy and weak
D) It will bloom faster

• A

• B

• C

• D