Artham
Resource Material
For Revised Syllabus Session 2025-26
NCERT
Solutions
BIOLOGY
Class
11
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, Chapter 5
Morphology of Flowering Plants
1. How is a pinnately compound leaf different from a Palmately
compound leaf?
Solution:
The differences are as follows:
Pinnately compound leaf Palmately compound leaf
Many numbers of leaflets are Several leaflets are attached to a
present on a common axis common point.
Leaflets are attached to Leaflets are attached to a
common axis called rachis common point on the leaf stalk
Leaflets bearing axis is the Leaflet bearing axis is very
continuation of the petiole short.
Ex: Neem leaves Ex: Cotton leaves
2. Explain with suitable examples the different types of phyllotaxy.
Solution:
The pattern of leaf arrangement on the stem or branch is called
phyllotaxy. Example in China rose, mustard and sunflower plants, a
single leaf arises at each node alternately.
Phyllotaxy is of three types, namely:
• Alternate – emergence of a single leaf at each node in an alternate
manner. Example – Hibiscus
Resource Material
For Revised Syllabus Session 2025-26
NCERT
Solutions
BIOLOGY
Class
11
Powered by
,
, Chapter 5
Morphology of Flowering Plants
1. How is a pinnately compound leaf different from a Palmately
compound leaf?
Solution:
The differences are as follows:
Pinnately compound leaf Palmately compound leaf
Many numbers of leaflets are Several leaflets are attached to a
present on a common axis common point.
Leaflets are attached to Leaflets are attached to a
common axis called rachis common point on the leaf stalk
Leaflets bearing axis is the Leaflet bearing axis is very
continuation of the petiole short.
Ex: Neem leaves Ex: Cotton leaves
2. Explain with suitable examples the different types of phyllotaxy.
Solution:
The pattern of leaf arrangement on the stem or branch is called
phyllotaxy. Example in China rose, mustard and sunflower plants, a
single leaf arises at each node alternately.
Phyllotaxy is of three types, namely:
• Alternate – emergence of a single leaf at each node in an alternate
manner. Example – Hibiscus
