AP BIOLOGY

PLANTS

THE LEAF

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is Leaf?
A
The flatted green structure
B
The colourful portion on the stem
C
The part which is in the mud
D
None of these
Explanation: 

Detailed explanation-1: -The flat green portion of a leaf is called as lamina or leaf blade.

Detailed explanation-2: -Complete answer: The green leafy structures present at the base of the flower are known as sepals. The flower of the plant has different parts present in it which includes the colourful petals, the green leafy structures are sepals, the male and female reproductive part known as the stamen and pistil.

Detailed explanation-3: -Phylloclades are flattened stems that resemble leaves that can continue growing indeterminately (Figure 11.4. 8). They are subtended by reduced, scale-like leaves. Examples include prickly pear cactus (Opuntia), Christmas cactus (Schlumbergera), and ribbon plant, Homalocladium.

Detailed explanation-4: -Typically leaves are broad, flat and thin (dorsiventrally flattened), thereby maximising the surface area directly exposed to light and enabling the light to penetrate the tissues and reach the chloroplasts, thus promoting photosynthesis.

There is 1 question to complete.