Which process does not require a concentration gradient?

A. Facilitated diffusion
B. Active transport
C. Osmosis
D. Diffusion


Answer: B

Anatomy & Physiology

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Anterograde transport is the movement of materials from synaptic knobs to the cell body

Indicate whether this statement is true or false.

Anatomy & Physiology

Which cells produce myelin in the brain and spinal cord?

A) Schwann cells B) Microglia C) Astrocytes D) Oligodendrocytes

Anatomy & Physiology

Positive feedback helps to restore normal function when one of the body's physiological variables gets out of balance

Indicate whether the statement is true or false

Anatomy & Physiology

Regulatory-protein transcription factors bind to ________ and activate ________, which tells the RNA polymerase ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology