Biology 180 Final Exam BYUI | 70 Questions with 100% Correct Answers | Updated & Verified
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Biology 180
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Biology 180
Biology 180 Final Exam BYUI | 70 Questions with 100% Correct Answers | Updated & Verified
The longer the wavelength the higher the energy of an electromagnetic wave
False
Which of the following elements has a valence of two?
Oxygen and Sulfur
What type of bond is formed by the equal sharing ...
biology 180 final exam byui | 70 questions with 100 correct answers | updated amp verified the longer the wavelength the higher the energy of an electromagnetic wave false which of the following e
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Biology 180 Final Exam BYUI | 70 Questions with 100%
Correct Answers | Updated & Verified
The longer the wavelength the higher the energy of an electromagnetic wave
False
Which of the following elements has a valence of two?
Oxygen and Sulfur
What type of bond is formed by the equal sharing of valence electrons?
A non-polar covalent bond
Polar molecules, such as water, will commonly participate in which of the
following intermolecular interactions
Hydrogen bonding with polar molecules.
Electrostatic interaction with ionic compounds.
Which of the following compounds would have the capability of forming a
hydrogen bond?
A molecule formed by polar covalent bonds.
What is the concentration of a solution with a volume of 300 mL containing 24
grams of sucrose (C12H22O11)?
8%
A weak acid like acetic acid:
Will resist changes in pH so long as the pH is near the pKa.
Which of the following are true regarding pKa?
pKa is the negative logarithm of the Ka.
pKa is the pH when the conjugate base and weak acid are at the same concentration.
pKa is physical characteristic of each unique buffering system
pH = pKa + log ([A-] / [HA])
A certain channel protein in the cell membrane is equally permeable to both Na+
and K+. Na+ concentrations are high on the outside of the cell (which is positive),
while K+ concentrations are high on the inside of the cell (which is negative).
Assuming equal concentration gradients for both Na+ and K+, which of the
following statements is true regarding the movement of these ions through this
channel?
More Na+ ions will be transported.
Which of the following types of transport can use the electrochemical gradient of
sodium to move a solute against its concentration gradient?
Secondary Active Transport
Which of the following membrane activities require energy from ATP hydrolysis?
Na+ ions moving out of the cell.
Which of the following processes would enable a cell to take in large quantities of
a specific molecules such as LDL cholesterol?
Phagocytosis
Receptor mediated endocytosis
A drug designed to inhibit the response of cells to testosterone would almost
certainly result in which of the following?
A decrease in transcriptional activity of certain genes.
, Which type of receptor uses GTP hydrolysis in its mechanism?
G-protein coupled receptors
An inhibitor of which of the following could be used to block the release of
calcium from the endoplasmic reticulum?
Phospholipase C
Carbohydrates carry multiple copies of this group.
Hydroxyl group
Which functional group is the only one with a nitrogen atom?
Amino
When numbering the carbons in a monosaccharide that is in the ring form, what
do you look for to know where carbon #1 is?
The anomeric carbon
Fructose forms multiple hydrogen bonds with water.
True
What functional groups are present in a fatty acid?
Carboxyl, Alkyl
A trans-fat would contain fatty acids that are _____________ and have double
bonds with the carbon chain leaving and entering on the _________________
sides of the double bond.
Unsaturated;opposite
How do we refer the two ends of a strand of nucleic acid?
The 3' end and the 5' end.
Phosphodiester linkages are formed between which two functional groups?
a phosphate and hydroxyl group
Van der Waal interactions between hydrocarbon chains are important in which
level of protein structure?
Tertiary, quaternary
All the amino acids share which of the following functional groups?
Carboxyl
An electron loses potential energy when it:
shifts to a more electronegative atom.
Energy transfers are never 100% efficient. This fact is expressed in:
the second law of thermodynamics
According to the induced fit hypothesis of enzyme catalysis, which of the
following is correct?
The binding of the substrate changes the shape of the enzyme's active site.
A solution of starch at room temperature does not readily decompose to form a
solution of simple sugars because:
The activation energy barrier for the reaction cannot be surmounted.
Which statement most accurately describes the production of ATP during
glycolysis?
1,3 bisphosphoglycerate has sufficient potential energy for the creation of two ATP.
How many reduced dinucleotides would be produced with four turns of the citric
acid cycle?
4 FADH2 and 12 NADH
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