Chapter 10

Question 1

Polysaccharide

Answer 1

carbohydrate made of many units of sugar

Question 2

Photosynthesis

Answer 2

process done by chlorophyll, light energy causes reactions where carbon dioxide + water –> glucose + oxygen.

Question 3

Epidermis

Answer 3

outer layer of cells of non-woody parts of plants

Question 4

Cuticle

Answer 4

thin layer of waxy material covering epidermis of plant.

Question 5

Stomata (stoma)

Answer 5

pores in epidermis of leaf

Question 6

Guard cell

Answer 6

pair of specialised cells surrounding the stoma, to open and close stomata

Question 7

Palisade mesophyll

Answer 7

layer below leaf upper epidermis, main site of photosynthesis

Question 8

Spongy mesophyll

Answer 8

layer below palisade layer in leaf, contains air sacs, main site of gas exchange

Question 9

Xylem

Answer 9

transport tissues, carries water and minerals up through plant from roots

Question 10

Transpiration stream

Answer 10

passage of water and minerals through roots, stem and leaves

Question 11

Phloem

Answer 11

transport tissues, carries products of photosynthesis from leaves to rest of plant

Question 12

Limiting factor

Answer 12

component of process/reaction in short supply preventing the rate of reaction increasing

Question 13

Monosaccharide

Answer 13

‘single’ sugar, cannot be broken down into a simpler sugar

Question 14

Fructose

Answer 14

monosaccharide sugar found in fruit

Question 15

Disaccharide

Answer 15

sugar made up of two monosaccharides

Question 16

Cellulose

Answer 16

polysaccharide of glucose, forms plant cell walls

Question 17

Hydroponics

Answer 17

crops grown with roots in a solution of mineral ions instead of soil