Question

water, sugar, and other important nutrients need to be transported from one part of a plant to another. which statement correctly describes the interaction of the root and shoot systems during nutrient transport?
a the leaves take in water and sugar, which are then transported to the rest of the plant through vascular tissues.
b the roots take in water and sugar, which are then transported to the rest of the plant through vascular tissues.
c the leaves take in water and the roots produce sugar that are transported to the rest of the plant through vascular tissues.
d the roots take in water and the leaves produce sugar that are transported to the rest of the plant through vascular tissues.
a flower that has both male and female reproductive structures is shown.
diagram of a flower with labels: filament, petal, anther with pollen grains, ovule, ovary, style, stigma
which statement best describes an interaction that will allow a flowering plant to reproduce by self - pollination?
f an anther is transferred from a filament to another filament within the same flower.
g an ovule is transferred from the ovary to a petal on a different flower.
h a pollen grain is transferred from an anther to the stigma of the same flower.
j an ovary is transferred from a flower on one plant to a flower on a different plant.

Explanation:

First Question (Nutrient Transport):

Step1: Recall plant transport systems.

Leaves perform photosynthesis to make sugar (glucose). Roots absorb water and minerals. Vascular tissues (xylem for water/minerals, phloem for sugar) transport these.

Step2: Analyze options.

• Option A: Leaves make sugar, not take in water (roots do). Incorrect.
• Option B: Roots absorb water, not sugar (leaves make sugar). Incorrect.
• Option C: Leaves make sugar (photosynthesis), roots absorb water. Vascular tissues transport both to the rest of the plant. Correct.
• Option D: Roots absorb water, leaves make sugar. Direction of transport (roots to leaves for water, leaves to rest for sugar) is misrepresented here. Incorrect.

Step1: Define self - pollination.

Self - pollination is the transfer of pollen from the anther of a flower to the stigma of the same flower or another flower on the same plant.

Step2: Analyze options.

• Option F: Anther to filament transfer is not pollination. Incorrect.
• Option G: Ovule to petal transfer is not pollination. Incorrect.
• Option H: Pollen grain from anther (male part) to stigma (female part) of the same flower. This is self - pollination. Correct.
• Option J: Ovary transfer between plants is not self - pollination (self - pollination is within the same plant or flower). Incorrect.

Answer:

C. The leaves take in water and the roots produce sugar that are transported to the rest of the plant through vascular tissues.

Second Question (Self - Pollination):