Asexual Reproduction

Q.

What are unisexual and bisexual flowers? Give two examples of each.

Q.

Name a plant that reproduces through stem.

Q. Complete the following flow chart.

1. 1-Female gamete, 2-Zygote, 3-Yeast, 4-Leaf
2. 1-Pollen grain, 2-Fruit, 3-Vegetative propagation, 4-Flower
3. 1-Female gamete, 2-Zygote, 3-Vegetative propagation, 4-Leaf
4. 1-Female gamete, 2-Pollen grain, 3-Vegetative propagation, 4-Leaf

Q. Which of the following plants can give rise to new plants from its mature leaves?

1. Potato
2. Sugarcane
3. Carrot
4. Bryophyllum

Q. Production of new plants from parts like root, leaf and stem is called .

1. vegetative propagation
2. spore formation
3. sexual reproduction

Q. The female gamete is also known as the __.

1. pollen grain
2. pistil
3. egg
4. ovary

Q.

What are the two types of reproduction and explain them

Q. What is the type of asexual reproduction seen in spirogyra?

1. Budding
2. Vegetative propagation
3. Fragmentation
4. Spore formation

Q.

A unisexual flower that has only stamen is called ________.

Q. Statement 1: Plants like potato and sugarcane show vegetative propagation.

Statement 2: Vegetative propagation is a type of sexual reproduction.

1. Both the statements are correct
2. Only statement 1 is correct
3. Only statement 2 is correct
4. Both the statements are incorrect

Q. New plants grow from bulbs in onion which is a modified _____.

1. stem
2. root
3. fruit
4. leaf

Q.

Deficiency of Molybdenum causes whip tail disease of cauliflower.

1. True
2. False

Q.

Examples of vegetatively reproducing plants are:

1. Tomato, lady's finger, onion, cauliflower

2. Potato, ginger, onion, sugarcane

3. cauliflower, onion, potato, tomato

4. Lady's finger, onion, ginger, sugarcane

Q.

Fertilisation is necessary for asexual reproduction.

1. True

2. False

Q. Fragmentation is a type of reproduction in which a part of the parent forms a new offspring. It is seen in some fungi, planarian and annelid worms. What kind of reproduction is this?

1. Asexual
2. Sexual
3. Both A and B
4. Neither A nor B

Q. Explain reproduction in Plants.

Q.

Give the name of a unicellular and a multicellular organism that reproduce by budding.

Q. ______ is the process of breaking up of the body of a simple multicellular organism into two or more fragments on maturing, each of which subsequently grows to form a complete organism.

1. Fission

2. Budding

3. Fragmentation

4. All of these

Q. Budding is the mode of reproduction observed in ___________.

1. datura
2. ipomea
3. yeast
4. bryophyllum

Q.

Give some examples of plants cultivated by layering.

Q. Which of the following parts of flower are involved in reproduction?

1. Stamen
2. Sepal
3. Pistil
4. Petal

Q. Examples of vegetatively reproducing plants are:

1. Tomato, lady's finger, onion, cauliflower
2. Potato, ginger, onion, sugarcane
3. Cauliflower, onion, potato, tomato
4. Lady's finger, onion, ginger, sugarcane

Q. Flowers are classified into complete flower and incomplete flower. What is the basis of this classification?

1. Number of flowers
2. Presence and absence of floral parts
3. Number of seeds
4. Presence and absence of sexual parts

Q.

1. what is meant by the term ‘artificial propagation in plants’?
2. Name three common methods which are used for the artificial propagation of plants.

Q. Match the following plants with their vegetative propagules.
$\begin{array}{cc}\text{I}& \text{II}\\ \text{A. Grass}& \text{i) Tubers}\\ \text{B. Mint}& \text{ii) Runners}\\ \text{C. Ginger}& \text{iii) Suckers}\\ \text{D. Potato}& \text{iv) Rhizomes}\end{array}$

1. A-iii, B-ii, C-i, D-iv
2. A-ii, B-i, C-iii, D-iv
3. A-iv, B-ii, C-i, D-iii
4. A-ii, B-iii, C-iv, D-i

Q. The production of offspring without formation of seeds is called reproduction.

Q.

In a mango orchard, almost all the mango trees present would have been grown using stem cuttings. Why do you think this is so? You may choose more than one answer.

1. Because stem cuttings provide identical plants and hence identical mangoes.

2. Because stem cutting helps increase the diversity of mango plants and hence in mango taste.

3. Because stem cutting directly results in mature plants which can produce fruits quickly.

4. Stem cuttings are not used because it makes all the plants more likely to die from a single disease.

Q.

Name any two leguminous plants

Q. Which among the following are the asexual modes of reproduction in plants?

1. Pollination
2. Budding
3. Vegetative propagation
4. Spore formation

Q. Statement 1: Potato is a modified stem.

Statement 2: Potato tubers have buds over their nodes (eyes).

1. Only Statement 1 is correct.
2. Only statement 2 is correct.
3. Both statements are incorrect.
4. Both statements are correct.