topi 5a

Question 1

taproot

Answer 1

root system whitch all branch off of one large root

Question 2

fibrosis

Answer 2

root ssytem of which is net - like

Question 3

monocot

Answer 3

Flower parts in groups of three
Leaves are smooth and parallel veins
Vascular bundles are scattered
Fibrous root system
One cotyledon in seed

Question 4

cotyledon

Answer 4

leaf within the embroy read to sprout
1 within monocot seeds
2 within dicot seeds

Question 5

Nodes

Answer 5

area where leafs leave the stem

Question 6

Dicot

Answer 6

Flower parts in groups of five
Leaves are palmate with netlike veins
Vascular bundles are ringed
Taproot system
Two cotyledons in seed

Question 7

Apical meristen

Answer 7

located in the tips of roots and shoot they boost vertical growth.

Question 8

Longitudial meristen

Answer 8

located in the perimeter of the roots and shoots they boost lateral growth (girth).

Question 9

periderm

Answer 9

dermial tissue type
( bark in stems and roots of trees and shrubs)
Replaces the epidermis as the plant ages for stems, trees and shrubs
Includes several layers of cork cells and lateral meristem (cork cambium) which is the outer dead bark

Question 10

collenchyma

Answer 10

type of ground tissue used for fexible support extra wall material in corners of cells

Question 11

mycorrhizae

Answer 11

nitrogen fixing bacteria

Question 12

nitrogen fixing

Answer 12

active transport assisted by mycorrhizae fungi and nitrogen-fixing bacteria. The fungi increase surface area for the plant and the bacteria digest the nitrogen the the product is usable by the plant, hence symbiotic relationship.

Question 13

cohesion/ ahesion theory

Answer 13

the suction of water from the leaves is built by the difference of atmospheric pressure built by the stomata causes the water to move due to the strong hydrogen bonds and the adhesion encourages the water to remain connected to the surface of the xylem and phloem.

Question 14

stomatal regulation how?

Answer 14

Stomatal opening is regulated as the water move through osmosis k+ ions

Question 15

source and sink theory

Answer 15

Sugars are moving from both roots and shoots (leaves)
Pressure flow hypothesis states that the sugar moves to sites of low concentration. The water absorbed creates a water slide (sink) (and pressure) for the sugar that is being pushed into the phloem towards the lower pressure, there is gets pushed to the lower concentrated areas known as the sinks

Question 16

Sclerenchyma

Answer 16

ground tissue used for support and strength, the thick cell walls

Question 17

Parenchyma

Answer 17

type of ground tissue used to phtosythesize, hormone secretion and nutrient storage, they have thin cell walls