AP BIOLOGY

PLANTS

PLANT RESPONSES TO STIMULI

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an example of the effects of geotropism?
A
Monarch butterflies migrate from Canada to Mexico each year.
B
A hippopotamus submerges itself in water until the Sun goes down.
C
A wilted flower returns to an upright position after being watered.
D
A potted plant falls on its side, but it roots still grow downward.
Explanation: 

Detailed explanation-1: -Geotropism explains which of the following phenomena? A seed is planted upside-down, but the roots still grow in the direction of gravity.

Detailed explanation-2: -Likewise, if you plant a seed upside down, the roots will still grow downward, while the shoot will still grow upward. Plants that grow on steep hillsides are great examples of geotropism. They might start out growing horizontally, but they’ll eventually begin to grow away from gravity and toward the sunlight.

Detailed explanation-3: -This response to gravity is called Geotropism. Geotropism causes roots to grow downward, and stems and leaves to grow up.

Detailed explanation-4: -Which of the following is an example of the effects of geotropism? Monarch butterflies migrate from Canada to Mexico each year. A hippopotamus submerges itself in water until the Sun goes down.

Detailed explanation-5: -If a plant in a pot is laid on its side, the growth of the main stem will start to curve into an upright position, away from the gravitational pull, and the roots will curve down towards gravitational pull.

There is 1 question to complete.