Week L2 Plant Structure

Question 1

Egg cells?

Egg cells is f- by s- to make an e-

Answer 1

fertilised
sperm
embryo

Question 2

What is Endosperm?

S-

What is Micropyle?

is the d-

What is Synergid cells?

c- m- and they tell the p- messengers where to go

Answer 2

Sugar

Doorway

chemical
messengers
pollen

Question 3

Bisexual Flowers?

Change g-

Answer 3

Gender

Question 4

Cotyledon?

e- seed l-

Answer 4

embryonic

leaf

Question 5

hypogeal germination? (monocot)

is where the g- under g-

Answer 5

germinates

ground

Question 6

epigeal germination? (Dicot)

is a- ground for g-

Answer 6

above

germinates

Question 7

Xylem Cells?

Answer 7

is one of the two types of transport tissue in vascular plants, phloem being the other

Question 8

10 points about xylem cells

Answer 8

1. transport water from roots to stems and leaves
2. Also transfers nutrients
3. Have perforated walls and pits
4. Long cells
5. Dead at functional maturity
6. The dead cells are like pipes
7. Xylem is one of two tissues in the plant which transport substances that plants need to live
8. Xylem cells are present throughout a plant
9. Thick walls
10. Xylem formation begins when the actively dividing cells of growing root and shoot tip

Question 9

Primary growth?

Answer 9

The increase in length of the shoot and the root

Question 10

Secondary growth?

Answer 10

increases the girth of the plant root or stem, rather than its length