The body of the ovule is fused within the funicle
at:
AI-generated explanation. Check against your textbook.
Explanation:
The functional body of the ovule is attached within the funicle at the hilum. The hilum marks the point of attachment of the ovule to the ovary via the funicle, where the ovule body is fused. Thus, option 1 is correct. The micropyle is the opening in the integuments for pollen entry, not the attachment point. The nucellus is the tissue inside the integuments surrounding the embryo sac. The chalaza is the opposite end where integuments and nucellus are attached but not the attachment site for the funicle.
🧠 Did You Know?
In many angiosperms, the hilum is visible as a scar on the seed after fertilization, indicating where the funicle previously attached the ovule.
💡 NCERT Memory Line:
The hilum is the point of attachment of the ovule to the funicle; micropyle, nucellus, and chalaza describe other parts/endings of the ovule.
The transverse section of a plant shows following
anatomical features:
(a) Large number of scattered vascular bundles
surrounded by bundle sheath.
(b) Large conspicuous parenchymatous ground
tissue.
(c) Vascular bundles conjoint and closed.
(d) Phloem parenchyma absent.
Identify the category of plant and its part:
AI-generated explanation. Check against your textbook.
Explanation:
The features describe a monocotyledonous stem. In monocots, vascular bundles are numerous and scattered throughout the ground tissue, each bundle is surrounded by a bundle sheath, and the ground tissue is largely parenchymatous. Bundles are conjoint and closed (no cambium), and phloem parenchyma is typically absent around the bundles. These characteristics match NCERT’s description of monocot stems, not roots or dicot stems.
? Did You Know?
In monocot stems, there is no distinct cortex–pith arrangement like in dicot stems, and secondary growth is generally absent.
? NCERT Memory Line:
Monocot stem: scattered vascular bundles, bundle sheath around bundles, no true vascular cambium, parenchymatous ground tissue.