BIO 256 EXAM 1 2026 STUDY GUIDE
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Which of the following statements is MOST CORRECT in reference
to homeostatic imbalance?
Answer: It is considered the cause of most diseases
◉ Which would be a normal measure of arterial blood pH?
Answer: 7.43
◉ Which would be a NORMAL measure of oxygen in arterial blood?
Answer: 18.1 ml/100ml
◉ One example of positive feedback is:
Answer: oxytocin release during childbirth
◉ Which body fluid compartment drains fluid from between cells,
returning it to the blood?
Answer: lymph
◉ Which organ would get the least amount of body flow during the
running of a marathon?
Answer: small intestine
, ◉ Which is a major element of the human body?
Answer: carbon
◉ Which is an inorganic molecule?
Answer: NaCl
◉ Water does NOT
Answer: dissolve triglycerides
◉ Which releases OH- in water?
Answer: bases
◉ Which pH would be considered alkaline?
Answer: pH 9.6
◉ If you add a small amount of vinegar (a weak acid) to a buffer, the
buffer's pH will
Answer: stay the same
◉ When molecules have the same chemical formula, arranged in the
same sequence, but differing only in their spatial orientation of key
function groups, producing D-isomers and L-isomers they are called
Answer: stereoisomers
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Which of the following statements is MOST CORRECT in reference
to homeostatic imbalance?
Answer: It is considered the cause of most diseases
◉ Which would be a normal measure of arterial blood pH?
Answer: 7.43
◉ Which would be a NORMAL measure of oxygen in arterial blood?
Answer: 18.1 ml/100ml
◉ One example of positive feedback is:
Answer: oxytocin release during childbirth
◉ Which body fluid compartment drains fluid from between cells,
returning it to the blood?
Answer: lymph
◉ Which organ would get the least amount of body flow during the
running of a marathon?
Answer: small intestine
, ◉ Which is a major element of the human body?
Answer: carbon
◉ Which is an inorganic molecule?
Answer: NaCl
◉ Water does NOT
Answer: dissolve triglycerides
◉ Which releases OH- in water?
Answer: bases
◉ Which pH would be considered alkaline?
Answer: pH 9.6
◉ If you add a small amount of vinegar (a weak acid) to a buffer, the
buffer's pH will
Answer: stay the same
◉ When molecules have the same chemical formula, arranged in the
same sequence, but differing only in their spatial orientation of key
function groups, producing D-isomers and L-isomers they are called
Answer: stereoisomers
