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BIOS 256 FINAL EXAM| 900 questions| WITH COMPLETE SOLUTIONS : Chamberlain College of Nursing CA$22.47   Add to cart
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BIOS 256 FINAL EXAM| 900 questions| WITH COMPLETE SOLUTIONS : Chamberlain College of Nursing
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Mitosis makes diploid daughter cells, and meiosis makes haploid daughter cells. Correct Answer: Fatty acids used for energy are first broken into A single nucleotide change in the LMNA gene sequence leads to an error in mRNA splicing and a defective nuclear protein. Correct Answer: What is the...

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BIOS 256 FINAL EXAM| 900 questions| WITH
COMPLETE SOLUTIONS : Chamberlain College of
Nursing

Mitosis makes diploid daughter cells, and meiosis makes haploid daughter cells. Correct Answer:
Fatty acids used for energy are first broken into

A single nucleotide change in the LMNA gene sequence leads to an error in mRNA splicing and
a defective nuclear protein. Correct Answer: What is the major cause underlying the rapid aging
disease, Progeria?

Some metabolic reactions that may not be independently energetically favorable in the human
body may still proceed to a final product because: Correct Answer: both redox reactions and
energy coupling through the hydrolysis of ATP can drive unfavorable reactions forward.

Brain and heart Correct Answer: When the body is under stress, including during heavy
exercise, blood must continue to flow to vital organs. The two most vital organs are the

endocytosis Correct Answer: When cells move substances into vesicles in the cytoplasm, it is
called

specific fit of a substrate to its particular enzyme. Correct Answer: The"lock-and-key model" of
enzyme function describes the

polyribosomes in the cytoplasm Correct Answer: What could you observe in a cell making a lot
of one certain protein, if you used an electronmicroscope?

codons Correct Answer: Transfer RNAanticodons pair complementarily to the ______ of
mRNA.

tRNA Correct Answer: The RNA typed haracterized by folding on itself to form a twisted
cloverleaf structure withan attached amino acid is called

RNA Correct Answer: Which consists of a single strand of nucleotides?

provides genetic code Correct Answer: Which is NOT a function of proteins?

The coiling of the protein chain backbone into an alpha helix is referred to as the: Correct
Answer: Secondary structure

residue or rest of the molecule, any functional group of an amino acid. Correct Answer: In the
structure of a protein or its subunits, the symbol N stands for nitrogen and the symbol R stands
for

,glucose Correct Answer: The molecule central to all metabolism is

buffer Correct Answer: A solution resisting changes in H+ concentration and tending to
maintain a stable pH is called a ____ solution.

positive, donated Correct Answer: Cations have a ____charge and are formed when they have
____ an electron to/from an anion.

maintenance of body temperature Correct Answer: Water absorbs and releases large amounts of
heat before changing temperature. This is important in

small intestine Correct Answer: Which organ would get the least blood flow during the running
of a marathon?

Any water not contained within the cells is said to be part of the body's _____ compartment.
Correct Answer: extracellular

hypothesis Correct Answer: In a negative feedback loop used to maintain homeostasis, which of
the following terms is NOT likely to be used?

16 meq/L Correct Answer: Which would be anormal measure of potassium in venous blood?

Negative feedback mechanisms work to prevent sudden severe changes within the body. Correct
Answer: Which of the following statements is true concerning feedback mechanisms?

False Correct Answer: Your physiological status would be greatly improved if you were to
remove all cholesterol from your body.

FAD Correct Answer: Which cofactor is associated with the conversion of double carbon-
carbon bonds to single bonds?

osmosis Correct Answer: Movement of water through a cell membrane, rather than solute, is
called

glucose Correct Answer: The favored fuel of the brain is

it has lost some of its electrons Correct Answer: An atom or molecule has been oxidized when

storage of glycogen Correct Answer: Which is NOT a function of membranes?

making a lot of one certain protein. Correct Answer: Polyribosomes are seen in cells

tRNA Correct Answer: Anticodons would befound in

transcription, translation Correct Answer: RNA is made by ____;protein is made by ____.

,DNA Correct Answer: Which contains your genetic inheritance from your parents

Hemoglobin Correct Answer: Which of the following proteins is composed of four polypeptides
and has quaternary structure?

side chain (-R) Correct Answer: There are 20 amino acids in proteins and they differ by their

pH Correct Answer: Buffers keep ___ constant in our bodies

bases Correct Answer: Which release OH- in water?

polar Correct Answer: Water is anespecially good solvent for biological molecules because it is

oxygen Correct Answer: Which is a major element of the human body

reproduction Correct Answer: Which is NOT an individual's survival need?

the response of the system amplifies the input response Correct Answer: In positive feedback...

lymph Correct Answer: Which body fluid compartment drains fluid from between cells,
returning it to the blood?

brain Correct Answer: When stress limits resources for organs, which organ receives top priority
for receiving blood?

copper Correct Answer: Which is a trace element of the human body?

NaCl Correct Answer: Which is an inorganic molecule?

sodium chloride Correct Answer: Which would form an electrolytic solution when dissolved in
water?

glucose and fructose Correct Answer: Table sugar, sucrose, is composed of

genes shorten until they no longer function Correct Answer: What is NOT a reason why you and
your cells age?

ATP Correct Answer: "universal energy carrier"

a coenzyme Correct Answer: NAD is

they can serve as a regulator of the active site, leading to the possibility of negative or positive
feedback in a pathway Correct Answer: Enzyme allosteric sites can be important to the overall
outcome of a metabolic pathway because

, break the molecule into glucose units Correct Answer: to obtain metabolic energy from
glycogen, you must first

3 NADH
2 CO2
1 H+
1 ATP
1 FADH2 Correct Answer: Each Acetyl CoA molecule that enters the Krebs cycle produces?

aerobic Correct Answer: When glucose is catabolized under _____ conditions, pyuvates will
lose a carbon. Then the acetate made will cross the mitochondrial wall and enter the Krebs cycle.

break the molecule into glucose units Correct Answer: To obtain metabolic energy from
glycogen, you must first

heart and liver Correct Answer: Which organs can obtain metabolic energy from lactic acid?

Na+ and K+ Correct Answer: Ion channels in a cell membrane permit the selective passage of

faciliated diffusion Correct Answer: When a gated channel opens in response to a stimulus,
allowing sodium ions to flow with their concentration gradient into a cell, this is an example of

interstitial fluid Correct Answer: The fluid surrounding most body cells is

O2 Correct Answer: NOT put into the Kreb's cycle

Co2 gas taken to mitochondria Correct Answer: Most of the carbons from CO2 metabolic waste
travel through the circulatory system to the body's exterior as

Active sites bring substrates together, and may also strain the chemical bonds of the substrates,
both helping a reaction to proceed more quickly by decreasing the activation energy Correct
Answer: How do the active sites of enzymes contribute to the catalysis of a chemical reaction?

141meq/l; 16meq/l Correct Answer: Which would be a normal measure of potassium in venous
blood?

oxytocin release during childbirth Correct Answer: One example of positive feedback

glycogen, starch Correct Answer: You can store glucose as ___, but plants store them as ___,
which you can eat to obtain energy

globular Correct Answer: Enzymes are ___ proteins

hydrolysis of ATP Correct Answer: The main exergonic reaction that drives most of the body's
endergonic reactions is the

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