science - plants and their reproduction

Question 1

How is asexual reproduction different from sexual reproduction?

Answer 1

does not involve fusions of gametes

Question 2

state one advantage and one disadvantage of asexual reproduction

Answer 2

advantage: Does not need another organism / lower risk of mutation

Disadvantage: No adaptation from gametes

Question 3

What is the term that describes the offspring resulting from asexual reproduction?

Answer 3

clones/cloning

Question 4

Name two organisms that reproduce through asexual reproduction.

Answer 4

Any two from Hydra / amoeba / bacteria / starfish

Question 5

The diagram below shows the parts of a flowering plant, with various parts numbered
Fill in the table below listing the names of the numbered parts.

Answer 5

1. anther
   2.filament
2. petal
3. sepal
4. stigma
5. style
6. ovary
7. ovule

Question 6

what part of the flower produces pollen?

Answer 6

anthers

Question 7

what part of the flower produces seeds?

Answer 7

ovule

Question 8

what would you find inside the male and female sex cells

Answer 8

you would find a nucleus

Question 9

Describe how the anther and stamen of the flower could be adapted to prevent self-pollination

Answer 9

Positioned so as to prevent self-pollination (or something reasonable) / ripening at different times

Question 10

Give one advantage and one disadvantage of self-pollination.

Answer 10

Advantage: Does not need another factor / good for mass production

Disadvantage: No variation / adaptation due to cross pollination

Question 11

The number of bee colonies has been steadily declining. Explain why this is a concern for farmers.

Answer 11

Some flowers rely on bees for pollination so crops affected / commercial issue / any reasonable argument including honey production [

Question 12

State the name of the process by which seeds are distributed away from the parent plant

Answer 12

Dispersal / dispersion

Question 13

If the pea pod is left on the plant, it slowly dries out, which makes the pod twist. At a certain point, the pod suddenly splits open and flicks out the seeds.

Explain why the plant does this

Answer 13

Sends seeds away from plant
Reduces competition for resources

Question 14

Describe two other ways in which plants send their seeds away from the parent plant

Answer 14

Using animals - consumed / attached to fur or clothing
Using water - floating away from plant
Air using parachute or spinners

Question 15

Name three other life processes.

Answer 15

growth, excretion, nutrition, reproduction, sensitivity. .

Question 16

Seeds are able to remain dormant for very long periods. Explain what is meant by dormant.

Answer 16

Life processes extremely slow / words to that effect

Question 17

Seed growth is known as?

Answer 17

germination

Question 18

Once the plant has produced green leaves, food is produced through a process called?

Answer 18

photosyphises

Question 19

what is The special pigment called in the seed?

Answer 19

chlorophyll

Question 20

The special pigment chlorophyll produces food using

Answer 20

light / sunlight.