Botany-Sexual Reproduction in Flowering Plants - Online Test
Q1. Flower is the site of
Answer : Option A
Explaination / Solution:
Sexual reproduction in flowering plants centres around the flower. Within a flower, there are usually structures that produce both male gametes and female gametes.
Q2. In some plants anther and stigma mature at same time this condition is called
Answer : Option D
Explaination / Solution:
Homogamy – In this case the anther and stigmas of a bisexual flower mature simultaneously. The pollen grains reach the mature stigma either by contact, wind, gravity, rain drop or even insects. Self pollination brought about by contact is called direct autogamy and remaining agencies perform indirect autogamy.
Q3. The flower which possesses both androecium and gynoecium is called perfect or:-
Answer : Option D
Explaination / Solution:
Bisexual flower conation both male and female reproductive parts i.e. sepals and petals. These flowers are also called as monoecious or hermaphrodite.
Q4. Which of the following plant contain unisexual flower
Answer : Option A
Explaination / Solution:
The flower which contains either male or female reproductive part is called unisexual flower. Papaya plant produce either male or female flower in separate plants.
Q5. The Gynoecium of flower having two or more carpel fuse together are called
Answer : Option D
Explaination / Solution:
Gynoecium is the female reproductive part of flower. It consists of single or more than two carpel( pistil). When these carpels are fused together, they are called syncarpous.
Q6. Outermost green leafy whorls of flower is called
Answer : Option B
Explaination / Solution:
The outermost whorl of flower is green leafy structure, called sepals. Sepals protect the flower in buds stage. It is generally attached with thalamus of the flower.
Q7. Pollen grains are formed inside the
Answer : Option D
Explaination / Solution:
Pollen grains are formed inside the anther. Stamen contains filament and anther. Inside the anther microsporogenesis process takes place to produce haploid pollen grains that forms male gametes.
Q8. Monoecious flowers contain
Answer : Option D
Explaination / Solution:
Monoecious flowers contain both male and female reproductive parts that are androecium and gynoecium. Androecium produce male gametes and gynoecium produce female gametes.
Q9. Flower is a modified shoot because
Answer : Option D
Explaination / Solution:
Flower is a modified shoot because it develops in the axils of bracts like axillary shoots. New buds also develop at node inside the axils of bracts of leaves.
Q10. When there is no distinction of sepals and petals, the non-essential floral organs are collectively called
Answer : Option C
Explaination / Solution:
In some flowers, there is no distinction of sepals and petals. In these flowers these non-essential organs are together called as perianth. The individual parts of perianth are called tepals.
