Science Practice Quiz 196

Q1.What specific characteristic allows spores to withstand unfavourable conditions such as high temperature and low humidity?

A. Their ability to float in the air B. Their asexual reproductive nature C. A hard protective coat D. Their rapid germination under any condition

Q2.What defines a unisexual flower?

A. Flowers containing both stamens and pistil B. Flowers containing only pistil or only stamens C. Flowers that produce only male gametes D. Flowers that produce only female gametes

Q3.Which of the following plants produces unisexual flowers?

A. Mustard B. Rose C. Papaya D. Petunia

Q4.What is characteristic of a bisexual flower?

A. It contains only stamens B. It contains only pistil C. It contains both stamens and pistil D. It produces only male gametes

Q5.What is the primary function of the anther in a flower?

A. To form the female gamete or egg B. To contain ovules C. To produce male gametes through pollen grains D. To support the stigma

Q6.Where is the female gamete or egg formed in a flower?

A. Stigma B. Anther C. Ovary D. Ovule

Q7.What is formed when a male and a female gamete fuse during sexual reproduction?

A. Pollen grain B. Ovule C. Zygote D. Stamen

Q8.Which of the following is a characteristic of pollen grains mentioned in the text?

A. They are heavy and sink in water B. They have a soft, permeable coat C. They are light and can be carried by wind D. They are formed in the pistil

Q9.What is the process of transfer of pollen from the anther to the stigma of a flower called?

A. Fertilisation B. Germination C. Pollination D. Dispersal

Q10.When pollen lands on the stigma of the same flower or another flower of the same plant, what is this process known as?

A. Cross-pollination B. Self-pollination C. Fertilisation D. Seed dispersal

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Science Practice Quiz 196