BOP CHAPTER 25 EXAM QUESTIONS AND REVISED ANSWERS 100% CORRECT 2024/2025 LATEST UPDATE
The biophysical force hypothesis states that each new leaf primordium is initiated:
a. in the first space that becomes available.
b. outside a physiological field.
c. outside an area of inhibition.
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The biophysical force hypothesis states that each new leaf primordium is initiated:
a. in the first space that becomes available.
b. outside a physiological field.
c. outside an area of inhibition.
d. at a certain sufficient distance from the apex.
e. when a portion of the tunica bulges. - Answer- E
In magnoliids and eudicots, leaves generally consist of a ______ and a ______.
a. blade; sheath
b. sheath; petiole
c. petiole; stipule
d. stipule; blade
e. blade; petiole - Answer- E
A sessile leaf, by definition, lacks a ______.
a. blade.
b. stipule.
c. sheath.
d. lamina.
e. petiole. - Answer- E
A leaf having a rachis is a ______ leaf.
a. simple
b. palmately compound
c. pinnately compound
d. whorled
e. sessile - Answer- C
Plants that are characterized as xerophytes:
, a. are adapted to areas that are neither too wet nor too dry.
b. are adapted to dry habitats.
c. grow wholly or partly submerged.
d. usually have fewer stomata than other types of plants.
e. may lack stomata in some leaves. - Answer- B
Plants that grow completely submerged have leaves with:
a. no stomata.
b. stomata only on the upper surface.
c. stomata only on the lower surface.
d. stomata sunken in depressions.
e. many epidermal hairs, - Answer- A
Which of the following statements about the leaf epidermis is FALSE?
a. It is covered with a cuticle.
b. Its cells are loosely arranged.
c. Stomata may be sunken in depressions
d. Stomata may occur on one or both leaf surfaces.
e. Epidermal hairs may occur on one or both leaf surfaces. - Answer- B
Which of the following statements about palisade parenchyma is FALSE?
a. It is lacking in the leaves of maize and other grasses.
b. It is usually located on the lower side of the leaf.
c. It consists of columnar cells.
d. It is where most of the photosynthesis in the leaf occurs.
e. It is part of the mesophyll. - Answer- B
Unlike the leaves of eudicots and magnoliids, most monocot leaves:
a. undergo secondary growth.
b. have veins containing xylem and phloem.
c. have veins arranged in a branching pattern.
d. have netted venation.
e. have parallel venation. - Answer- E
Most photosynthates are collected from leaf mesophyll cells by:
a. midribs.
b. major veins.
c. minor veins.
d. bundle-sheath cells.
e. bundle-sheath extensions. - Answer- C
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