Grade 10 - Asexual Reproduction

The method, in which the cut stems of two different plants(one with roots and other without roots) are joined together in such a way that the two stems join and grow as a single stem, is known as:

• A) Cutting

• B) Layering

• C) Grafting

• D) All the above

Which one of the following statements is correct? Statement 1: The cells involved in sexual reproduction are called gametes. Statement 2: Sexual reproduction leads to a greater variety in population.

• A) Statement 1

• B) Statement 2

• C) Both statements are correct

• D) Both statements are incorrect

Which of these statements about the reproductive system of a plant is NOT true?

• A) The male organs are the stamens.

• B) The anthers produce female gametes.

• C) The male gametes are present in the pollen grains.

• D) A male gamete from a pollen grain fertilize a female gamete in an ovule.

Which of the following is true about the use of the nectary in a flower?

• A) Supplies sugar for the growth of the pollen tubes

• B) Supplies a lubricant for the pollen tubes to enter the ovules

• C) Gives a pleasant smell to spread in air

• D) Produces a sweet liquid to attract animals

Why do flowering plants show double fertilisation?

• A) To produce the endosperm which contains food and ensures that the seed germinates successfully

• B) To protect the seeds

• C) To ensure the survival of the diploid zygote.

• D) To ensure that the ovary will not develop if double fertilisation does not take place.

Which of these plants reproduces in the same way as the organism shown below?

• A) Balsam

• B) Fern

• C) Mango

• D) Hibiscus

Which of the following options are true about sexual and asexual reproduction?

• A) Only (i) and (ii)

• B) Only (i) and (iii)

• C) Only (ii) and (iii)

• D) All the three

Which of the following processes represents P and Q?

• A)

  P-Fertilization

  Q-Pollination

• B)  

  P-Pollination

  Q-Fertilization

• C)  

  P-Dispersal

  Q-Germination

• D)  

  P-Fertilization

  Q-Germination

Which of the following is a characteristic of wind pollinated flowers?

• A) Pollen grains are heavy and dry whereas the stigma is short and sticky.

• B) Flowers are brightly colored.

• C) Pollen grains are light, small and dusty whereas the stigma is hairy and feathery.

• D) Flowers are small with nectar and fragrance.

Match column I with column II and select the correct option from the codes given below.

• A) (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

• B) (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

• C) (a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)

• D) (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)