Asexual Reproduction

Q.

Explain binary fission of amoeba with the help of a diagram.
[5 MARKS]

Q.

Fungus, moss and fern reproduce by a common method of asexual reproduction. Name the method.

Q.

Explain the process of reproduction in hydra.

Q. Which of the following organisms reproduces by binary fission?

1. Rhizopus
2. Hydra
3. Amoeba
4. Plasmodium

Q.

How does an Amoeba reproduce? Describe with the help of labelled diagrams.

Q. A planaria worm is horizontally cut into two halves A and B such that A contains the head portion. Another planaria worm is vertically cut into two halves C and D such that each half contains half of the head. Which among the following will regenerate to form a new worm?

1. Only A
2. A, C, and D
3. A, B, C, and D
4. C and D

Q. The fusion of gametes occur in all the following processes except:

1. Internal fertilisation
2. External fertilisation
3. Binary fission
4. In vitro fertilisation

Q. Why can't humans reproduce asexually?

Q. Which among the following statements are correct with respect to asexual reproduction?

1. Offsprings are similar to parent
2. Single celled gametes are produced
3. Involves only one parent
4. Organisms show internal fertilisation

Q. The basic difference between binary fission in amoeba and budding in yeast is that ___________.

1. daughter cells in budding are bigger than those in fission compared to their parent cells
2. daughter cells in budding are smaller than those in fission compared to their parent cells
3. daughter cells of budding receive more cytoplasm than fission fragments
4. daughter cell in budding and binary fragments formed are of same size as that of their parent cells

Q.

How many parents are involved in asexual reproduction?

1. Four parents

2. Two parents

3. Three parents

4. One parent

Q.

A feature of reproduction that is common to Amoeba, Spirogyra and Yeast is that

1. they reproduce asexually.

2. they are all unicellular.

3. they reproduce only sexually.

4. they are all multicellular.

Q.

In which organisms fragmentation and/or regeneration is a mode of reproduction?

1. Simple unicellular organisms

2. Complex multicellular plants and animals

3. Complex unicellular organisms

4. Simple multicellular plants and animals

Q.

Which of the following organisms reproduce by budding?

1. Spirogyra
2. Hydra
3. Amoeba
4. Paramecium

Q.

The picture below shows some yeast cells used in bread making. Why do these cells form long chains? Choose the option that explains this phenomenon.

The first cells reproduce by binary fission after which the daughters continuously create new buds. This creates a long chain.

The parent cell creates daughters by budding which in turn create more by budding. This creates long chains.

The cells reproduce by multiple fission which appears to be chain like.

The first cells reproduce by budding and then the daughters by continuous binary fission that creates long chains.

Q. Fungi reproduce by forming this structure, which can survive in unfavourable conditions. Name the structure.

1. Hyphae
2. Spore
3. Zygote
4. Egg

Q. What is cloning?

Q.

Name the asexual method of reproduction : (a) in Hydra, and (b) in Amoeba.

Q. Which of these is a form of asexual reproduction found in yeast?

1. Vegetative propagation
2. Regeneration
3. Fragmentation
4. Budding

Q.

Why are there only daughter amoebae cells? Why not sons? And are there only female cells in microbes? Aren't there any male? 🤔

Q.

Which type of reproduction :

(a) involves gametes ?

(b) does not involve gametes ?

Q.

Explain the modes of reproduction in living organisms.

Q.

What is a clone? Name one famous clone.

Q.

why cant humans reproduce asexually?

Q.

A small part of the body of the parent organism that grows out is called a bud.

1. True
2. False

Q. Amoeba reproduces by which type of asexual reproduction?

1. Binary fission
2. Budding
3. Pollination
4. Multiple fission

Q. In budding, daughter cells formed are of the same size as the parent cell.

1. False
2. True

Q.

Define asexual reproduction. Name two methods of asexual reproduction in animals. Name two animals which reproduce by these asexual reproduction methods.

Q.

The production of an exact copy of an animal by asexual reproduction is known as :

(a) budding

(b) mating

(c) cloning

(d) hatching

Q. Budding and fission are asexual modes of reproduction.

1. True
2. False