Exam 3: BIOS 256 BIOS256 Latest

Exam 3: BIOS 256 / BIOS256 (Latest

Update 2025 / 2026) Anatomy and Physiology IV with Lab | Questions with Answers | Grade A | 100% Correct - Chamberlain

Question:

----- of a solution is determined solely by its --------

Answer:

pH / Hydrogen ions (H+)

Question:

acids; any chemical that ------- in solution

Answer:

donates H+

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Question:

Acids

Answer:

-any chemical that donates H+ in solution -a strong acid such as HYDROCHLORIC acid (HCI) ionizes freely -gives up most its H+ markedly LOWER pH of a solution -weak acids like CARBONIC ACID (H2CO3) ionize only slightly -keeps most H+ chemically bound, does not affect pH much

Question:

bases; any chemical that ----- in a solution

Answer:

accepts H+

Question:

bases

Answer:

-any chemical that accept H+ in a solution -strong bases, such as the hydroxide ion (OH-), have a strong tendency to bind H+, markedly raising pH

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Question:

Buffer

Answer:

any mechanism that resists changes in pH by converting strong acids or bases to weak one. 7.35-7.45

Question:

physiological buffers

Answer:

organ system that controls output of acids, bases, pr CO2

Question:

physiological buffer systems has URINARY AND RESPIRATORY system explain ?

Answer:

Urinary system: buffers greatest quantity of acid pr base

Respiratory system: buffers within minutes * cannot alter pH as much as the

urinary system

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Question:

major chemical buffers ****

Answer:

bicarbonate, phosphate, hemoglobin, and protein systems

Question:

chemical buffer restores ----- pH in fraction of a second

Answer:

normal

Question:

bicarbonate buffer system; converting strong acids and strong bases into

Answer:

weak acids

weak bases

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