Questions about roots, stems and leaves?

Question

1. The dissolved sugars produced in the leaves of a maple tree move to the tree's roots through the

1. xylem

2. guard cells

3. phloem

4. epidermal cells

2. Within a leaf, there are many air spaces between teh cells of the

1. palisade layer

2. meristem

3. spongy mesophyll

4. cuticle

Answer 1

1. phloem

2. spongy mesophyll

Answer 2

Both....number three (3)

Phloem carries sugars made in the leaves/green parts of the plants to parts of plants that depend on it...Phloem "flows" downward!!!

Spongy mesophyll is airy and has many spaces to allow the exchange of O2 and CO2 along with watervapor to and from the leaf during photosynthesis.

Answer 3

3. Phloem: Phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose, a sugar, to all parts of the plant where needed.

3. Spongy Mesophyll: Beneath the palisade layer is the spongy layer. The cells of the spongy layer are more rounded and not so tightly packed. There are large intercellular air spaces. These cells contain fewer chloroplasts than those of the palisade layer.