Chapter 16

Question 1

What is a chromosome?

Answer 1

It is a threadlike structure that from DNA

Question 2

What is sexual reproduction?

Answer 2

Is the process of reproduction that involves two different gametes and produces a different offspring.

Question 3

What is asexual reproduction?

Answer 3

Is the process of reproduction that involves one parent and produces an identical offspring.

Question 4

Give 2 examples of plants that involve use asexual reproduction

Answer 4

• Potaoes

- Spider plant

Question 5

What is fertilization?

Answer 5

Is the fusion of the nuclei of two gametes

Question 6

What is a zygote?

Answer 6

Is a cell produced when two gametes fuse

Question 7

How many chromosomes does a human gamete contain?

Answer 7

23 chromosomes

Question 8

Name 5 parts of a flower

Answer 8

• Stigma
• Anther
• Petal
• Sepal
• carpel

Question 9

What is the female gamete in a plant called?

Answer 9

The ovule

Question 10

What is the male gamete in a plant called?

Answer 10

The pollen grain

Question 11

What is pollination?

Answer 11

Is the transfer of pollen grain from the male to the female part of the plant

Question 12

State 2 differences between a wind and a self pollinated flower

Answer 12

• Crossed pollinated flowers require pollinators, while wind pollinated flowers need to receive pollen moved by wind.
• wind pollinated flowers are not colourful, while crossed pollination flower have to be in order to attract pollinators

Question 13

What is a seed?

Answer 13

A seed is an ovule after fertilization that contains the embryo of a plant.