Why Do We Need to Breath In, Exchange, and Deliver

question 174

Multiple Choice

Why do we need to breath in, exchange, and deliver to each cell the oxygen molecule?

• A) glucose can't be broken down without it.
• B) it pulls electrons off the electron transport chains in the last part. of cell respiration.
• C) all chemical reactions require it.
• D) all of these answers.
• E) none of these answers.

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Definitions:

Prolactin

A hormone produced by the pituitary gland that plays an important role in lactation, stimulating milk production in mammals.

Oxytocin

A hormone and neuropeptide involved in childbirth and lactation, also playing a role in social bonding and trust.

Muscle

A tissue in animal bodies composed of fibers that contract to produce movement or maintain the position of parts of the body.

Blood Vessels

Tubular structures through which blood circulates in the body, including arteries, veins, and capillaries, responsible for transporting nutrients, oxygen, and waste.