Isotopes Are Atoms of the Same Element That Have

question 74

Multiple Choice

Isotopes are atoms of the same element that have

• A)the same atomic numbers but different numbers of electrons.
• B)the same atomic number but different numbers of neutrons.
• C)the same atomic mass but different numbers of protons.
• D)the same atomic numbers but different numbers of protons.
• E)different atomic numbers.

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Definitions:

Pericycle

A cylinder of parenchyma or sclerenchyma cells just inside the endodermis of roots, which can give rise to lateral roots, and in some cases, contribute to secondary growth.

Branch Roots

Secondary or lateral roots that originate from the primary root, increasing the root system's overall surface area for water and nutrient absorption.

Root Hairs

Thin, hair-like extensions of root epidermal cells that increase surface area for water and nutrient absorption from the soil.

Xylem

is a type of tissue in plants that transports water and dissolved nutrients from the roots to the rest of the plant.