Morphology of Flowering Plants - Online Test
Q1. A plant in which adventitious roots develop chlorophyll and perform photosynthesis is
Answer : Option C
Explaination / Solution:
Tinospora develops adventitious roots having chlorophyll and perform photosynthesis. This kind of roots develops from stems andhang in air.
Q2. Inflorescence which shows indefinite growth and bears a number of flowers due to active growing point is called
Answer : Option D
Explaination / Solution:
In recemose inflorescence indefinite growth occurs and bears a number of flowers due to active growing point.
Q3. A scar on the seed coat through which the developing seeds were attached to the fruit is called
Answer : Option C
Explaination / Solution:
The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit.
Q4. The form of thalamus in which ovary is at tops and stamens, petals and sepals are born below is called
Answer : Option D
Explaination / Solution:
In hypogamous flowers the ovary is at tops and stamens, petals and sepals are borne below on the thalamus. The ovary is called superior.
Q5. The fruit develop form a whole inflorescence is called
Answer : Option C
Explaination / Solution:
True frui is the fruit that develops from ovary only. In composite fruits, whole inflorescence develops into fruits as in case of jackfruit.
Q6. Cup-like structure formed by adnation of sepals, petals and stamens is
Answer : Option D
Explaination / Solution:
In angiosperms a hypanthium is a structure where basal portions of the calayx, the corolla and the stamens form a cup-shaped tube.
Q7. Ancestors of mammals belongs to
Answer : Option A
Explaination / Solution:
The ancestor of mammals belongs to class Therapsida.Therapsida is a group of synapsids that includes mammals and their ancestors.
Q8. Bat is member of order
Answer : Option B
Explaination / Solution:
Bat is a member of order Chiroptera of class Mammalia. Bats are only mammals to have achieved powered fight in which forelimb is modified as wings.
Q9. Which one of the following has the highest number of species in nature?
Answer : Option D
Explaination / Solution:
Insects have the highest number of species in nature. Insect belongs to arthropods family of class Mammalia. They are charecterised by jointed legs.
Q10. One animal that does not perform locomotion is
Answer : Option C
Explaination / Solution:
Sycon does not perform locomotion, although it is a animal. Syconremain attached to substratum and does not move from one place to other.
