Biological Chemistry MCQs
Biological Chemistry MCQs
Answer these Biological Chemistry MCQs and assess your grip on the subject of Biological Chemistry. Scroll below and get started!
1: When a very electronegative atom strips a valence electron away from its partner, __________ form.
A. Hydrogen bonds
B. Van der waals interactions
C. Ions
D. Covalent bonds
2: When amino acids are deaminated, the immediate products are ammonia and often a ____.
A. Folic acid
B. Keto acid
C. Gluco acid
D. Phyto acid
3: As water freezes, ________.
A. It loses its polarity
B. It cools the surrounding environment
C. Its molecules move farther apart
D. Its hydrogen bonds break apart
4: The reaction a + b + energy → ab is an example of a(n) ________ reaction.
A. Decomposition
B. Exergonic
C. Synthesis
D. Reversible
5: An atom with an atomic number of 14 will have __________ electrons in its valence shell.
A. 4
B. 5
C. 10
D. 15
6: Weak chemical bonds such as hydrogen bonds __________.
A. Covalent bonds
B. Form when a hydrogen atom that is covalently bonded to an electronegative atom like oxygen or nitrogen is attracted to another electronegative atom.
C. Reactants; products
D. The atomic mass
7: __________ fats or lipids form animal body fat that is used for stored energy and insulation.
A. Proteins
B. Glucose
C. Saturated
D. Ribose
8: What functional groups are present in Amino acids?
A. Ester (-COOR)
B. Aldehyde (-CHO)
C. Amine (-NH2) and Carboxylic acid (-COOH)
D. Alcohol (-OH)
9: What is ATP?
A. Adenosine 15'-triphosphate
B. Adenosine 5'-triphosphate
C. Adenosine 5'-monophosphate
D. Adenosine 10'-triphosphate
10: What is Biotechnology?
A. Modification of genetic make of organisms
B. The use of living systems and organisms to develop, make or modify products or processes for specific use
C. Production of drugs and medicines
D. Study of geologic forces and tectonic plates
11: What are the three elements that make up a carbohydrate molecule?
A. Carbon, Hydrogen and Magnesium
B. Carbon, Sulfur and Nitrogen
C. Oxygen, Helium and Nitrogen
D. Carbon, Hydrogen and Oxygen
12: What is DNA?
A. A string of amino acids
B. A type of virus
C. A collection of enzymes
D. A polymer of deoxyribonucleotides
13: If digestion is ________, then synthesis is ________.
A. Hydrolysis; dehydration
B. Dehydration; hydrolysis
C. The fats in lard are mostly phospholipids
14: Zero on a ph scale is very _____, and 14 on a ph scale is very _____.
A. Basic; acidic
B. Acidic; basic
C. both a and b
D. none of these
15: It is believed the major reason for the decline in amphibian species is _______.
A. Death through disease
B. Changing reproductive habits
C. Mutation
D. Climate change
16: Monkeys underwent massive ________ in the pliocene and pleistocene.
A. Natural selection
B. Adaptive radiation
C. Genetic drift
D. Convergent evolution
17: The ability to tolerate lactose throughout life is most likely to be seen in ______.
A. Populations that live in cold climates
B. Cultures that keep dairy
C. Both A and B
D. None of these
18: The dna-containing region of this bacterial cell is indicated by the letter _____.
A. Ribosomes.
B. Cell walls. Fimbriae. Mitochondria
C. Flagella
D. DNA storage
E. The nucleoid region contains DNA
19: _____ is the species-specific biological predisposition to learn in certain ways but not others.
A. Preparedness
B. Process of learning
C. Stimuli and not others.
20: Molecular mimics __________.
A. Atom that has more protons than electrons and carries a positive charge
B. Can produce similar effects as the naturally occurring molecules
C. One of the atoms sharing electrons is much more electronegative
D. Partial opposite charges on molecules come close enough to attract each other
21: Most lipids are transported in the blood as part of a structure called a(n) _______________.
A. Lipoproteins
B. Cell membranes.
C. Adipose tissue.
D. Triglycerides.
22: Most organic compounds contain carbon and _____. see concept 4.1 (page)
A. Oxygen.
B. Sulfur.
C. Phosphate.
D. Hydrogen.
E. Nitrogen.
23: Nonpolar covalent bonds are always formed from atoms that are __________.
A. Equal in their electronegativity
B. Electron
C. A three-dimensional space
D. Attraction between ions
24: The nucleus of unstable _____ of an element will decay leading to emission of radiation.
A. Covalent
B. Atomic mass
C. Isotopes
D. Isomers.
25: The fact that oxygen is an atom that is strongly electronegative means that __________.
A. It more strongly pulls shared electrons toward itself when forming a ...
B. Half-life
C. Is an ion
D. Number of electrons in its outermost shell
E. A covalent bond
26: Hemoglobin glycation is a process where ________ is ________ attached to hemoglobin.
A. Glycerol; covalently
B. Glucose; enzymatically
C. Glucose; non-enzymatically
D. N-acetyl-galactosamine; enzymatically
E. Galactose; non-enzymatically
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Biological Chemistry MCQs
