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Biology NEET - XI: Chapter 6- Anatomy of Flowering Plants Part 2

Biology25 CardsCreated about 2 months ago

This deck covers key concepts from Chapter 6 of Biology NEET for Class XI, focusing on the anatomy of flowering plants, including vascular bundles, meristematic tissues, and theories related to plant structure.

Conjoint vascular bundles are present in

Stems and leaves
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Key Terms

Term
Definition
Conjoint vascular bundles are present in
Stems and leaves
What do you mean by bicollateral vascular bundle?
Xylem is surrounded by phloem on both sides.
Give an example of a plant having bicollateral vascular bundles.
Stem of cucrbitaceae
What is meant by hadrocentric vascular bundles?
Xylem and phloem are concentrically present, xylem being surrounded by phloem
What is meant by amphicribal vascular bundle?
Xylem and phloem are concentrically present, xylem being surrounded by phloem
What is meant by leptocentric vascular bundles?
Xylem and phloem are present concentrically, phloem being surrounded by xylem.

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TermDefinition
Conjoint vascular bundles are present in
Stems and leaves
What do you mean by bicollateral vascular bundle?
Xylem is surrounded by phloem on both sides.
Give an example of a plant having bicollateral vascular bundles.
Stem of cucrbitaceae
What is meant by hadrocentric vascular bundles?
Xylem and phloem are concentrically present, xylem being surrounded by phloem
What is meant by amphicribal vascular bundle?
Xylem and phloem are concentrically present, xylem being surrounded by phloem
What is meant by leptocentric vascular bundles?
Xylem and phloem are present concentrically, phloem being surrounded by xylem.
What is meant by amphivasal vascular bundle?
Xylem and phloem are present concentrically, phloem being surrounded by xylem.
What kind of vascular bundles do stems of gymnosperms have?
Conjoint open vascular bundles
What produces meristematic tissue (plants)?
Promeristem of the embryo
What is the shape of vegetative shoot meristem?
Conical/dome shaped
Who gave the tunica-corpus theory?
Schmidt
According to tunica corpus theory, how many layers are present in the tunica?
Single layered
According to the tunica corpus theory, what does the tunica form?
Tunica gives rise to protoderm which gives rise to epidermis.
A/t the tunica corpus theory, how do the tunica cells divide"?
Anticlinally
According to tunica corpus theory, how many layers are present in the corpus?
Many layers
According to tunica corpus theory, how do the corpus cells divide?
Periclinally
According to tunica corpus theory, what does the corpus form?
Ground tissue and procambium
Who gave the histogen theory?
Hanstien
How many types of tissues form the vegetative shoot apex?
Three- dermatogen, pleurone and periblem
What does the dermatogen form in plants?
Epidermis
What does the periblem form in plants?
Hypodermis, cortex and endodermis
What does the pleurone form in plants?
Vascular bundles, pith, pith rays
What are the intercalary meristems derived from?
Apical meristem
Which tissue help fallen stems of plants to become erect?
Intercalary meristem
What is the fate of intercalary meristem?
Gets fully used up in the formation of permanent tissue.