Chapter 4: Pollination&Plant Life Cycles

Question 1

Function of the nectaries?

Answer 1

Produces sweet substance that insects drink for energy(in the centre of the flower)

Question 2

Function of the stamen?

Answer 2

Produces a powder that makes new plants

Question 3

Function of the petals?

Answer 3

Brightly coloured to attract insects

Question 4

Function of the carpels?

Answer 4

Contains female reproductive parts (style,ovary,stigma)

Question 5

Function of the sepals?

Answer 5

Special type of leaves that form a ring around petals, they protect the flower when it’s a bud

Question 6

The function of the receptacles?

Answer 6

Top part of the flower stalk, where parts of flower are attached. Part of fruit after fertilisation.

Question 7

What does the anther do?

Answer 7

Makes pollen

Question 8

What does the filament do?

Answer 8

Supports anther

Question 9

What does the stigma do?

Answer 9

Receives pollen

Question 10

What does the ovary contain

Answer 10

Egg cells (ovules)

Question 11

What does semi-permeable mean?

Answer 11

Membrane can only absorb some substances

Question 12

What is osmosis?

Answer 12

Where water moves from a high conc. to a low conc.

Question 13

What does the seed coat do?

Answer 13

Protects the seed during dispersal

Question 14

What does the food source do?

Answer 14

Allow seeds to develop while underground

Question 15

What does the embryos leaf?

Answer 15

Allows photosynthesis to occur ASAP

Question 16

What does the embryos shoot do?

Answer 16

Ensures the leaves are as high as possible after germination

Question 17

What does the embryos root do?

Answer 17

Ensures plant can absorb water ASAP

Question 18

What is the xylem?

Answer 18

The structure in the stem that transports water

Question 19

Order of pollination

Answer 19

Pollination, pollen tube growth, fertilisation, seed production, seed dispersal, germination

Question 20

how is the wind plant adapted?

Answer 20

They are light so they can travel further in the wind and disperse lots of pollen

Question 21

How’s the insect plant adapted?

Answer 21

Bright colours to attract insects

Question 22

Adaptations of the insect pollen

Answer 22

Adapted bc it’s spiked and can latch onto insects fur and pollinated when move to another plant

Question 23

How is wind pollen adapted?

Answer 23

Bc it has a smooth surface area and is aerodynamic so it can travel faster and further in the wind

Question 24

Ways a seed can disperse

Answer 24

Latch, excretion, water, explode, wind