Plant Form and Function 2

Question 1

What does an angiosperm seed consist of?

Answer 1

1. An embryo
2. Endosperm (3N)
3. Seed Coat

Question 2

What is seed dormancy?

Answer 2

Ensures germination will occur at a time advantageous to the seedling

-requires environmental cues like moisture, temperature, or lighting changes

Question 3

What does germination depend on?

Answer 3

Imbibition; the uptake of water in a dry seed leading to germination

Question 4

What emerges first in germination?

Answer 4

The radicle

Question 5

What does the radicle develop?

Answer 5

The root system

Question 6

What kinds of roots branch from the primary root?

Answer 6

Lateral roots

Question 7

The function of a root

Answer 7

Anchoring plant
Absorbing minerals and water
Storing carbohydrates

Question 8

RAM produces a cap of tissues called the ____ and covers the _____ tip of the root

Answer 8

Root cap
Distal

Question 9

What are the three zones of cells?

Answer 9

1. Zone of cell division
   -Close to the root cap
2. Zone of elongation
3. Zone of differentiation

Question 10

What are the two types of root systems?

Answer 10

1. Tap root system
   -Tall plants
   -Eudicots/gymnosperms
2. Fibrous root system
   -Lateral roots
   -Monocots

Question 11

Where do lateral roots arise from?

Answer 11

The pericycle
-in line with the xylem to facilitate transport

Question 12

How to tell a monocot root from a dicot root?

Answer 12

In monocot roots, the parenchyma cells are surrounded by rings of xylem then phloem

Question 13

What is the innermost layer of the cortex called and what does it do?

Answer 13

The endodermis
-Doesn’t allow things to enter the vascular cylinder