Transport In Plants

Question 1

Lignin

Answer 1

Lignin is very strong and it’s used to thicken xylem vessel walls answer xylem vessels held to support Plans by keeping them up right

Question 2

What is wood made of

Answer 2

What is almost completely composed of lignified xylem

Question 3

Structure of phloem tubes

Answer 3

Phloem tubes I made up cells joined end to end

Question 4

Companion cells

Answer 4

These are cells located right next to sieve tube elements and probably controls both cells

Question 5

Vascular boundaries

Answer 5

Vascular boundaries are made up of bundles of xylem vessels and phloem cubes close together.

Question 6

Movement of water through a plant

Answer 6

Water present in the soil moves into root hairs by osmosis

What’s that is sent up the plant by xylem vessels and into leaves for photosynthesis.

Water is diffused into the air by the leaves

Question 7

Transpiration in plants

Answer 7

The evaporation of water from the surface of leaves creates a pull of water through the plant

Question 8

Adhesion

Answer 8

This is the attraction between water molecules and the surface

Question 9

Cohesion

Answer 9

The attraction which makes water molecules tend to stick together

Question 10

Capillarity

Answer 10

Water molecules stick together on two surfaces of Naruto tubes and the water rises up the tube.

Question 11

Root pressure

Answer 11

Water constantly moves into Roots by osmosis because of the presence of sugars and other dissolved substances in The Roots

Question 12

How does water move in a plant

Answer 12

Water moves from high pressure in the roots to low pressure in the leaves

Question 13

Transpiration rate

Answer 13

The faster the transpiration rate the faster the plant takes up water

Question 14

Factors affecting transpiration rate

Answer 14

Temperature- with high temperatures transpiration rate increases

Humidity- transpiration decreases as humidity increases because the concentration gradient of water between the air spaces on the outside air is low on the rate of evaporation of water through the stoma is slow

Air movement- transpiration increases as wind speeds increase because water vapor is carried away rapidly

Light intensity- during a brightly the stoma is fully opened Woodstock, fully opened the rate of transpiration can be High

Question 15

What are xerophytes

Answer 15

These are plants that live in places where water is short in Supply

Question 16

Mesophites

Answer 16

These are plants that live in areas where water is readily available

Question 17

Hydrophytes

Answer 17

These are plants that live in very wet, freshwater environments

Question 18

Halophytes

Answer 18

Plants that live in water with the high concentration of salt

Question 19

Adoptions of xerophytes

Answer 19

Find spine like leaves to reduce the number of stoma

Thickened stems or leaves capable of storing large amounts of water

An extensive root system to absorb water quickly when it rains

A thickened epidermis covered with a thick waxy cuticle

The availability to trap carbon dioxide at night so that the stoma can be closed during the day

Are the features such as strong consumer, who leaves and interlocking hairs

Question 20

Translocation

Answer 20

The transport of organic food through a plant