AP BIOLOGY

PLANTS

CLASSIFICATION OF PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the seed structure of a dicotyledon?
A
One cotyledon
B
Two cotyledons
C
No cotyledons
D
Three cotyledons
Explanation: 

Detailed explanation-1: -In a dicotyledonous seed, the embryo consists of an embryo axis and two cotyledons. Cotyledons generally have a swollen appearance as it acts as a food reserve for the developing seedling. The embryo axis has two ends.

Detailed explanation-2: -Plants producing seeds with two cotyledons are called dicots. The cotyledons contain stored fat that nourishes the embryo. While, plants having a single cotyledon in their seeds are called monocots.

Detailed explanation-3: -In monocot, the first cotyledon is called scutellum while the second cotyledon is rudimentary and is called. No worries!

Detailed explanation-4: -These cotyledons are also known as embryonic leaves or cotyledon seed leaf. The two types are dicotyledons and monocotyledons. Commonly we call them dicots and monocots.

Detailed explanation-5: -The cotyledon of grasses and many other monocotyledons is a highly modified leaf composed of a scutellum and a coleoptile. The scutellum is a tissue within the seed that is specialized to absorb stored food from the adjacent endosperm.

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