Sporopollenin Is the Primary Constituent of The

question 44

Multiple Choice

Sporopollenin is the primary constituent of the:

• A)integument.
• B)nucellar wall.
• C)exine.
• D)intine.
• E)tapetum.

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Definitions:

Element

A pure chemical substance consisting of one type of atom, distinguished by its atomic number, which is the number of protons in its nucleus.

Isotope

Atoms of the same element that have different numbers of neutrons in their nuclei, leading to different atomic masses but the same chemical behavior.

Neutrons

Tiny particles located within an atom's nucleus, possessing no electrical charge and having a mass that is marginally higher than protons.

Isotope

Variants of an element that contain the same number of protons but different numbers of neutrons in their nuclei.