1. Define the following terms:
(a) Apocarpous gynoecium
(b) Monocarpellary ovary
(c) Syncarpous gynoecium
(d) Placentation
2. Distinguish between the following:
(a) Bract and perianth
(b) Polypetalous and gamopetalous corolla
(c) Flower and inflorescence
Answers
Answer:
1- a- Apocarpous gynoecium means the presence of more than one carpel and the carpels are separate or unfused. It is a primitive condition. The examples of Apocarpous gynoecium include -Strawberry and Buttercup.
b- "Monocarpellary Superior Ovary" means ovary with one carpel with the floral parts arrranged on the thalamus below the ovary.
c- If a gynoecium has multiple, distinct (free, unfused) carpels, it is apocarpous. If a gynoecium has multiple carpels "fused" into a single structure, it is syncarpous. A syncarpous gynoecium can sometimes appear very much like a monocarpous gynoecium
d-In biology, placentation refers to the formation, type and structure, or arrangement of the placenta. The function of placentation is to transfer nutrients, respiratory gases, and water from maternal tissue to a growing embryo, and in some instances to remove waste from the embryo.
2- a- Reduced leaf found at the base of the pedicel is called bract while leaf like structure present between bract and flower is called bracteole. ... Pedicie is the stalk of flower while peduncle is the stalk of inflorescence.
b- As adjectives the difference between polypetalous and gamopetalous. is that polypetalous is (botany) having a corolla composed of distinct, separable petals while gamopetalous is (botany) having petals wholly or partially fused such that the corolla takes the form of a tube.
c- An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. ... The stalk of each single flower is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is also referred to as a peduncle.
Explanation:
hope it is helpful to you
10 Thanks please please ♥️