Bio 256 Exam Questions with Complete Solutions (100% Pass)
Which statement is NOT true regarding necessary life functions? - Answer-Each organ system is isolated from all other body systems
Which is most correct in reference to homeostatic imbalance? - Answer-It's considered the cause of most diseases
Normal measure of fasting glucose in venous blood? - Answer-98mg/100ml
Normal measure of sodium in venous blood? - Answer-135-145 meg/L
Which would be a normal measure of total lipids in venous blood? - Answer-400-800 mg/100 ml
Which is a normal measure of potassium in venous blood? - Answer-16 meg/L
Which would be a normal measure of oxygen in arterial blood? - Answer-18.1 mL/100 mL
Which is a less common element of the human body? - Answer-Iodine
Which is an organic molecule? - Answer-C6H12O6
Does water dissolve triglycerides - Answer-no
Which would form an electrolyte solution when dissolved in water? - Answer-sodium chloride
A base is defined as any molecule than can - Answer-remove protons from a solution as
they release OH-
If solution A has 100x the H ions as solution B and solution B has a pH of 6.0, then solution A will have a pH equal to? - Answer-4.0
A molecule that is a mirror image of another, having a key functional group oriented in a
different direction, is called _______ of the other - Answer-a sterioisomer
Which is the unit molecule of protein? - Answer-amino acids
The molecule central to all metabolism is? - Answer-glucose A steroid may be best described as a - Answer-lipid consisting of four carbon rings and various functional groups
Saturated fatty acids have _____ double bonds - Answer-no
Which is the part differing in the various amino acids? - Answer-side chain (-R)
We have a much greater variety of proteins than polysaccharides in the body, mainly because - Answer-there are 20 different amino acid building blocks from which protein molecules are made
Enzymes are ______ proteins - Answer-globular
Which is NOT a function of proteins? - Answer-provide genetic code
Nicotinamide adenine dinucleotide (NAD) is a - Answer-coenzyme
Which of the following represents the reduced form of a coenzyme? - Answer-FADH2
What are the 4 nitrogenous bases in DNA? - Answer-adenine, cytosine, guanine, and thymine
(NOT URACIL)
What are the 4 nitrogenous bases in RNA? - Answer-adenine, cytosine, guanine, and uracil
(NOT THYMINE)
Transcription produces - Answer-RNA
Anticodons would be found in - Answer-tRNA
Messenger RNA carries genetic info from chromosomes to the _____ - Answer-
ribosomes
If a cell needs to make a lot of one certain protein, you would see many _____ if you observed the cell using an electron microscope - Answer-polyribosomes
What causes two different cells in one individual to display different characteristics? - Answer-Different genes are expressed
Which best describes the membranes of your cells? - Answer-phospholipid bilayer w/ embedded proteins and cholesterol
The main exergonic rxn that drives most of the body's endergonic rxns is the? - Answer-
hydrolysis of ATP
Which statement is NOT true regarding necessary life functions? - Answer-Each organ system is isolated from all other body systems
Which is most correct in reference to homeostatic imbalance? - Answer-It's considered the cause of most diseases
Normal measure of fasting glucose in venous blood? - Answer-98mg/100ml
Normal measure of sodium in venous blood? - Answer-135-145 meg/L
Which would be a normal measure of total lipids in venous blood? - Answer-400-800 mg/100 ml
Which is a normal measure of potassium in venous blood? - Answer-16 meg/L
Which would be a normal measure of oxygen in arterial blood? - Answer-18.1 mL/100 mL
Which is a less common element of the human body? - Answer-Iodine
Which is an organic molecule? - Answer-C6H12O6
Does water dissolve triglycerides - Answer-no
Which would form an electrolyte solution when dissolved in water? - Answer-sodium chloride
A base is defined as any molecule than can - Answer-remove protons from a solution as
they release OH-
If solution A has 100x the H ions as solution B and solution B has a pH of 6.0, then solution A will have a pH equal to? - Answer-4.0
A molecule that is a mirror image of another, having a key functional group oriented in a
different direction, is called _______ of the other - Answer-a sterioisomer
Which is the unit molecule of protein? - Answer-amino acids
The molecule central to all metabolism is? - Answer-glucose A steroid may be best described as a - Answer-lipid consisting of four carbon rings and various functional groups
Saturated fatty acids have _____ double bonds - Answer-no
Which is the part differing in the various amino acids? - Answer-side chain (-R)
We have a much greater variety of proteins than polysaccharides in the body, mainly because - Answer-there are 20 different amino acid building blocks from which protein molecules are made
Enzymes are ______ proteins - Answer-globular
Which is NOT a function of proteins? - Answer-provide genetic code
Nicotinamide adenine dinucleotide (NAD) is a - Answer-coenzyme
Which of the following represents the reduced form of a coenzyme? - Answer-FADH2
What are the 4 nitrogenous bases in DNA? - Answer-adenine, cytosine, guanine, and thymine
(NOT URACIL)
What are the 4 nitrogenous bases in RNA? - Answer-adenine, cytosine, guanine, and uracil
(NOT THYMINE)
Transcription produces - Answer-RNA
Anticodons would be found in - Answer-tRNA
Messenger RNA carries genetic info from chromosomes to the _____ - Answer-
ribosomes
If a cell needs to make a lot of one certain protein, you would see many _____ if you observed the cell using an electron microscope - Answer-polyribosomes
What causes two different cells in one individual to display different characteristics? - Answer-Different genes are expressed
Which best describes the membranes of your cells? - Answer-phospholipid bilayer w/ embedded proteins and cholesterol
The main exergonic rxn that drives most of the body's endergonic rxns is the? - Answer-
hydrolysis of ATP
