Find the Sum

question 54

Multiple Choice

Find the sum.

• A) 0.6
• B) 1
• C) 0.5
• D) 0.8
• E) 0.9

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Definitions:

Passive Transport

The movement of substances across a cell membrane without the need for energy input, down their concentration gradient.

Facilitated Diffusion

A transport mechanism for molecules across the cell membrane via protein channels, without energy expenditure.

Energy Expenditure

The total amount of energy used by the body per day, encompassing basal metabolic rate, physical activity, and the energy used in digesting and metabolizing food.

Plasma Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, responsible for controlling the passage of substances in and out.