Plants

Question 1

Herbaceous Plants

Answer 1

Do not contain wood

Question 2

Woody plants

Answer 2

Contain wood

Question 3

Node

Answer 3

The point on the stem where the leaf is attached

Question 4

Internode

Answer 4

The region on a steam between two nodes

Question 5

Bud

Answer 5

A potential growth point that may develop into a shoot, leaf or flower

Question 6

Lenticel

Answer 6

An opening on a stem for gaseous exchange

Question 7

Meristem

Answer 7

A plant tissue capable of mitosis

Question 8

Venation

Answer 8

The pattern of veins in a leaf (parallel or net)

Question 9

Lignin

Answer 9

A strengthening material found in some plant cell walls

Question 10

Cotyledon

Answer 10

A seed leaf

Question 11

Transpiration

Answer 11

The loss (by evaporation) of water vapour from the leaves and other aerial parts of the plant

Question 12

Cohesion

Answer 12

The sticking of similar molecules to each other

Question 13

Adhesion

Answer 13

Occurs when different molecules stick together

Question 14

Tropism

Answer 14

A change in the way a plant is growing in response to a stimulus

Question 15

Positive tropism

Answer 15

Growth towards the stimulus

Question 16

Negative tropism

Answer 16

Growth away from stimulus

Question 17

Phototropism

Answer 17

Light tropism

Question 18

Geo tropism

Answer 18

Gravity tropism

Question 19

Thigmotropism

Answer 19

Touch tropism

Question 20

Hydrotropism

Answer 20

Water tropism

Question 21

Chemotropism

Answer 21

Chemical tropism

Question 22

Growth regulator

Answer 22

A chemical that controls the growth of a plant

Question 23

Growth promoter

Answer 23

A chemical that increases growth in plants

Question 24

Growth inhibiter

Answer 24

A chemical that reduces growth in plants

Question 25

Stimulus

Answer 25

Anything that causes a reaction in an organism or any of its parts

Question 26

Response

Answer 26

The activity of a cell or organism as a result of a stimulus

Question 27

Asexual reproduction

Answer 27

Involves only one parent

Question 28

Sexual reproduction

Answer 28

Involves the union of two sex cells or gametes

Question 29

Gametes

Answer 29

Haploid cells capable of fusion

Question 30

Stamens

Answer 30

The male parts of a flower: Anther, Filament

Question 31

Carpels

Answer 31

The female parts of a flower: stigma, style, ovary

Question 32

Receptacle

Answer 32

Where the flowering parts of the plant arise from

Question 33

Sepals

Answer 33

Protect the flower when it is a bud

Question 34

Pollination

Answer 34

The transfer of pollen from the an anther to a stigma of a flower from the same species

Question 35

Self-pollination

Answer 35

The transfer of pollen from the an anther to a stigma of a flower on the same plant

Question 36

Cross-pollination

Answer 36

The transfer of pollen from the an anther to a stigma of a flower on a different plant

Question 37

Fertilisation

Answer 37

The union of the male and female gametes to form a diploid zygote

Question 38

Radicle

Answer 38

The part of the embryo that develops into a root

Question 39

Plumule

Answer 39

The part of the plant embryo that develops into the shoot

Question 40

Cotelydon

Answer 40

Seed eaf

Question 41

Non-endospermic seeds

Answer 41

Has no endosperm when fully developed (nutrients are in cotelydon)

Question 42

Endospermic seed

Answer 42

Contains some endosperm when fully formed

Question 43

Fruit

Answer 43

A developed ovary

Question 44

Dispersal

Answer 44

The transfer of a seed or fruit away from the parent plant

Question 45

Dormancy

Answer 45

A resting period when seeds undergo no growth and have reduced cell activity and metabolism

Question 46

Germination

Answer 46

The regrowth of the embryo, after a period of dormancy, if the environmental conditions are suitable

Question 47

Conditions needed for germination

Answer 47

Water Temperature Oxygen

Question 48

Vegetative propagation

Answer 48

Asexual reproduction in flowering planys

Question 49

Natural vegetative propagation

Answer 49

Involves plants forming a new stem, root, leaf or bud

Question 50

Runners

Answer 50

Horizontal stems that run above ground and from which new plants grow

Question 51

Root tuber

Answer 51

A swollen , underground root that remains dormant during winter and from which new plants may grow

Question 52

Bulb

Answer 52

A modified bud

Question 53

Cutting

Answer 53

A portion of a plant that is removed from the parent plant and grown into a new independent pant

Question 54

Grafting

Answer 54

The joining and uniting of a part of one plant with a second plant

Question 55

Layering

Answer 55

The growth of a new pant from a stem that is still attached to the parent plant

Question 56

Micropropagation

Answer 56

The growth of plants from small pieces of tissue under sterile conditions on a specially selected medium