Chapter 22- Transport, Nutrition And Food Storage In Flowering Plants

Question 1

Flowering plants are autotrophic. What does this mean?

Answer 1

They make their own food

Photosynthesis

Question 2

Uptake of water in plants

Answer 2

Water is need for photosynthesis
Plants get water form soil
Water enters plants by osmosis

Question 3

Adaptions of root hairs for water intake

Answer 3

Root hairs and numerous
Root hairs are thin walled
Root hairs don’t posses cuticles

Question 4

Transport of water in plants

Answer 4

Water diffuse across ground tissue and into xylem

Question 5

Adaptions of xylem for water transport

Answer 5

Thin, hollow, continuous tubes with narrow bore
Strengthened with lignin
Pits to allow sideways movement of water

Question 6

What is root pressure?

Answer 6

Force that pushed water up the stem from the root

Question 7

What is transpiration?

Answer 7

Loss of water from surface of a plant

Question 8

What is the cuticle of a plant?

Answer 8

Controls use of transpiration

Question 9

What is a stoma?

Answer 9

Tiny openings on surface of leaves and stems allowing water vapour to escape

Question 10

Uptake of minerals into plant

Answer 10

Absorbed by plants form soil in the for of ions

Minerals enter root through root hairs by diffusion

Question 11

Transport of minerals through plant

Answer 11

Once in root, minerals pass across ground tissue to xylem

Question 12

Uptake of carbon dioxide by plant

Answer 12

Needed for photosynthesis

Get it from respiration within cells or by diffusion from air through stoma

Question 13

Transport of carbon dioxide

Answer 13

Diffuses through air spaces in leaf and from cell to cell

Used to make food

Question 14

Transport of products of photosynthesis

Answer 14

Glucose and oxygen
Glucose stored as starch
Or transported in for of sucrose

Question 15

Who founded cohesion-tension model?

Answer 15

Dixon and Joly