Question

to support continued plant growth after the seed has germinated and has sprouted, the plant would need all of the following except?
a endosperm
b carbon dioxide
c nitrogen
d water
e light
question 9
plants grown aboard the international space station grow roots in all directions with the lack of a gravitational stimulus.
a true
b false
8.5 points
clear selection

Explanation:

First Question (Plant Growth Requirements)

Endosperm provides nutrients to the embryo during seed germination. After sprouting, plants perform photosynthesis (needing CO₂, light, water) and use nutrients like nitrogen from soil. So endosperm is not needed post - sprouting, while others are essential for growth.

Gravitropism (root growth direction due to gravity) is absent in space. Without gravitational stimulus, roots lack the signal to grow downwards and grow in all directions. So the statement is true.

Answer:

A. endosperm

Second Question (Plant Roots in Space)