Biology Unit 3: Reproduction

Question 1

What is Asexual Reproduction?

Answer 1

Asexual Reproduction is Making more copies of the Original Organism, they are all Identical Clones.

Question 2

What is Sexual Reproduction?

Answer 2

Sexual Reproduction is Reproduction involving Two Individuals, Creates Variation in offspring

Question 3

What is Mitosis?

Answer 3

Mitosis is Cell Division for Growth and Repair, makes identical daughter cells

Question 4

What is Meiosis?

Answer 4

Meiosis is Cell Division for Producing Gametes, occurs in the Testis and Ovaries and makes Cells with Half the original Chromosome number

Question 5

What is Binary Fission?

Answer 5

Binary Fission is the way that Bacteria Reproduce, very Similar to Mitosis

Question 6

What is Budding?

Answer 6

Budding: is the Way that Single Celled Fungi like Yeast Reproduce, similar to Binary Fission

Question 7

What is Tubers?

Answer 7

Tubers is an Underground Nutrient Storage that some Plants use, can grow into new plants

Question 8

What is Corms?

Answer 8

Corms are and Underground Nutrient Storage used by some Plants, similar to Tubers but Grows Right next to the Parent Plant Stem

Question 9

What is Germination?

Answer 9

Germination is the Name of the Process when Seeds Start to Grow, requires Water, Oxygen and the Right Temperature for the type of seed

Question 10

What are Hormones?

Answer 10

Hormones are Chemicals that act as Messengers in the living things, they are Produced by Glands and are often Moved around the Body through the Bloodstream

Question 11

What are Runners?

Answer 11

Runners: Some Plants are able to send out A Shoot that touches the ground and Grows it’s own Roots, this will eventually develop into a new copy of the original Plant.

Question 12

What are Gametes?

Answer 12

Parents produce Reproductive Cells, called Gametes, that Fuse Together to form an Offspring. Each Gamete has Half the Genetic Information, so when they combine there is all the information required to make a new organism.

Question 13

What is the Life Cycle of Flowering Plants?

Answer 13

Life Cycle of Flowering Plants:

1. Seed
2. Germination
3. Seedling
4. Mature Plant
5. Flowering

Question 14

Explain a Plant Seed

Answer 14

Flowering Plants begin their lives as seeds. Seeds are like Baby Plants. They have a hard outer shell that protects the seed embryo inside

Question 15

What is Germination?

Answer 15

When a Seed begins to grow, this is called Germination.

The Conditions required for Germination are Oxygen, Water, and the Correct Temperature. The first growth will usually be roots (radicle) followed by the stem and leaves (plumule)

Question 16

What is a Seedling?

Answer 16

When the First Leaves and Stem Appears above the Soil, this is called a Seedling

Question 17

What is a Mature Plant?

Answer 17

The seedling will continue to grow into a Full Mature Plant with Leaves, Roots, and Stems.

Question 18

Define a Flowering Plant

Answer 18

The mature plant will Grow Flowers. Through Pollination, the Flowers will Produce Seeds.
When the Seeds end up on the Ground, the cycle will begin again.

Question 19

What are the Male and Female Parts of a Flower?

Answer 19

Male: The Stamen is the Male part of the plant, the Anther makes pollen

Female: The Carpel is the Female part of the plant, the pollen needs to get to the Stigma in order to produce seeds.

Question 20

What is Pollentation?

Answer 20

When a Pollen grain gets to the stigma of the Flower is called Pollination

Question 21

In a Plant, What is Fertilisation?

Answer 21

A Pollen Tube grows down through the Style until it reaches the Ovule, once it gets there it will fuse with the Ovum (egg cell). This is called Fertilisation

Question 22

Where is the Fruit Formed in a Flower?

Answer 22

The fruit of a plant is usually formed from the ovary of the flower

Question 23

What is a “False Fruit”?

Answer 23

False Fruits happen when Other parts of the Flower Fuse and Swell, not just the Ovary.

Question 25

What are the 2 Different Types of Pollination?

Answer 25

The 2 Different Types of Pollination are:

• Animal Pollination
• Wind Pollination

Question 26

What are the Attributes of Animal Pollinated Flowers?

Answer 26

Animal Pollinated Flowers:

• Tend to be Brightly Coloured
• Have a Distinctive Scent
• May Produce Nectar
• Have Larger Flowers with the Anther and Stigma separated
• Tend to Produce less Pollen than wind pollinated flowers

Question 27

What are the Attributes of Wind Pollinated Flowers?

Answer 27

Wind Pollinated Flowers

• Tend to be Green or Dull, they may not be easy to make out
• The Anthers are exposed to Catch the Wind
• Tend to Produce Large amounts of Pollen
• No Scent
• No Nectar