The stem develops from which embryonic part of a germinating seed?
The stem is the ascending part of the axis bearing branches, leaves, flowers and fruits, and develops from the plumule.
Question 22 of 300
📘 CLASS XI
Which morphological structures are exclusively present on stems, distinguishing them from roots?
The stem bears nodes and internodes, which is a feature that distinguishes a stem from a root.
Question 23 of 300
📘 CLASS XI
What are nodes on a stem?
The region of the stem where leaves are born are called nodes.
Question 24 of 300
📘 CLASS XI
What are internodes on a stem?
Internodes are the portions between two nodes.
Question 25 of 300
📘 CLASS XI
The buds borne on the stem can be of which two positions?
The stem bears buds, which may be terminal or axillary.
Question 26 of 300
📘 CLASS XI
Which of the following describes the typical mature state of a stem?
Stem is generally green when young and later often becomes woody and dark brown.
Question 27 of 300
📘 CLASS XI
Which of the following is a primary physiological function of the stem?
The main function of the stem is spreading out branches bearing leaves, flowers and fruits, and it conducts water, minerals and photosynthates.
Question 28 of 300
📘 CLASS XI
Underground stem modifications are found in which of the following plants for food storage?
The underground stem of potato (Solanum tuberosum) is modified for food storage.
Question 29 of 300
📘 CLASS XI
Based on the summary of stem features, which of the following characteristics help to differentiate stems from roots?
The summary states that the presence of nodes and internodes, multicellular hair and positively phototropic nature help to differentiate stems from roots.
Question 30 of 300
📘 CLASS XI
Which type of hairs are typically found on the stem as per the summary?
The summary mentions 'multicellular hair' as a feature of stems.
