MULTIPLE CHOICE QUESTIONS
1. It is a pure substance that cannot be broken down to other types of substances
a. Isotope
b. Compound
c. Element
d. Isomer
2. Atoms with the same number of protons but differing numbers of neutrons
a. Element
b. Isotope
c. Isomer
d. Compound
3. Substance resulting from a combination of two or more different chemical elements
a. Isotope
b. Isomer
c. Element
d. Compound
4. In ionic bonding, cation is
a. A negatively charged ion
b. A neutral charge molecule
c. A positively charged ion
d. Has a partial positive and negative charge
5. Electronegativity is defined as
a. Transfer of electrons between atoms, leaving some with fewer electrons and others with more electrons
b. It is when one atom has more electrons than another
c. Power of an atom to attract electrons toward itself
d. It is when atoms have similar physical and chemical properties
6. What name is given to organic structures where hydrogens are omitted for clarity and carbons are represented by corners or kink
a. Bond line structures
b. Isomerism structures
c. Structure of atoms
d. None of the above
7. The branches or substituents which are derived from the names of the parent hydrocarbons are also known as
a. Functional groups
b. Structural groups
c. Alkyl groups
d. All of the above
8. When one carbon atom has branched from the carbon parent chain, the substituent name is called
a. Ethyl group
b. Methyl group
c. Propyl group
d. Phenyl group
9. The following are examples of structural isomers
a. Geometrical isomers
b. Ring chain isomers
c. Optical isomers
d. Stereoisomers
10. When a molecular formular of a compound represents two or more chemical structures, it is
a. Isotope
b. Covalent double or triple bond
c. Functional isomerism
d. Isomer
11. Stereoisomers include
a. Cis-trans isomers
b. Chain isomers
c. Superimposable isomers
d. All of the above
12. The following is true about isomers
a. Share similar properties when they have the same functional groups
b. Do not contain the same number of atoms of each element
c. Have the similar positions of protons and electrons
d. None of the above
13. When isomers are non-superimposable mirror images of each other, it is called.
a. Structural isomers
b. Enantiomers
c. Ring isomers
d. None of the above
14. A stock solution is
a. A solution of higher concentration than is needed for a procedure
b. A desired solution for a procedure
c. Smallest possible structure that has less than three carbon atoms
d. None of the above
15. The volume occupied by 1 mole of gas at Room Temperature and Pressure is
a. 22.4 liters of gas
b. 24 liters of gas
c. 24.4 liters of gas
d. All of the above
16. By a chemical definition carbohydrates are also known as
a. Aldehydes
b. Ketoses
c. Polyhydroxyl
d. Carbonyls
17. The following are the possible functional groups of carbohydrates
a. Aldehyde group
b. Keto group
c. Monosaccharide group
d. A and B
18. They are the simplest form of carbohydrates
a. Aldoses
b. Ketoses
c. Monosaccharides
d. Disaccharides
19. It is an example of a monosaccharide
a. Fructose
b. Sucrose
c. Maltose
d. Lactose
20. It is a carbohydrate with three to ten monosaccharides
a. Disaccharide
b. Oligosaccharide
c. Polysaccharide
d. Heteropolysaccharides
21. Glucose oxidation in aerobic conditions produces
a. 2 ATP
b. 8 ATP
c. 38 ATP
d. 28 ATP
22. Synthesis of glucose from non-carbohydrates compounds is called
a. Gluconeogenesis
b. Bioenergetics
c. Enolase
d. None of the above
23. Hyperglycemia could be, except
a. Increased hepatic production of glucose via gluconeogenesis
b. Decreased peripheral utilization of glucose
c. Increased mobilization of fatty acids
d. Muscle or adipose tissue having insulin insensitive glucose transporter GLUT-4
24. The following are chronic complications of diabetes, except
a. Atherosclerosis
b. Retinopathy
c. Nephropathy
d. Sorbitol
25. It is the storage form of glucose
a. Glucagon
b. Glycogen
c. Insulin
d. Pyruvate
26. The following are the nitrogenous bases in DNA
a. Guanine and Pentose sugar
b. Cytosine and Phosphate group
c. Adenine and Uracil
d. Guanine and Cytosine
27. It’s nitrogen base that is only found in ribonucleic acid
a. Thymine
b. Guanine
c. Cytosine
d. Uracil
28. It is a triplet of bases along the mRNA that codes for a particular amino acid
a. Codon
b. Anti-codon
c. Pyrimidines
d. Purines
29. It is an example of water-soluble vitamin
a. Niacin
b. Retinol
c. Tocopherol
d. Cholecalciferol
30. It is one of the causes of vitamin D deficiency
a. Immunosuppression
b. Impaired ossification
c. Lack of UV irradiation
d. All of the above
31. The following are the signs or symptoms of vitamin E deficiency, except
a. Neurological problems
b. Impaired vision
c. Eye muscle paralysis
d. Osteomalacia
32. Ataxia is a sign of which vitamin deficiency
a. Vitamin A
b. Vitamin D
c. Vitamin B1
d. Vitamin K
33. A serious deficiency of niacin could lead into
a. Pellagra
b. Rashes
c. Fatigue
d. Irritability
34. Which of the following vitamin when in deficiency in pregnant women can lead to birth defects?
a. Vitamin B1
b. Folic acid
c. Vitamin C
d. Vitamin K
35. Which of the following vitamins is an antioxidant?
a. Vitamin A
b. Vitamin B12
c. Vitamin C
d. Vitamin D
1. c. Element
2. b. Isotope
3. d. Compound
4. c. A positively charged ion
5. c. Power of an atom to attract electrons toward itself
6. a. Bond line structures
7. c. Alkyl groups
8. b. Methyl group
9. d. Stereoisomers
10. c. Functional isomerism
11. a. Cis-trans isomers
12. b. Do not contain the same number of atoms of each element
13. b. Enantiomers
14. a. A solution of higher concentration than is needed for a procedure
15. a. 22.4 liters of gas
16. c. Polyhydroxyl
17. d. A and B
18. c. Monosaccharides
19. a. Fructose
20. b. Oligosaccharide
21. c. 38 ATP
22. a. Gluconeogenesis
23. d. Muscle or adipose tissue having insulin insensitive glucose transporter GLUT-4
24. d. Sorbitol
25. b. Glycogen
26. d. Guanine and Cytosine
27. d. Uracil
28. a. Codon
29. a. Niacin
30. c. Lack of UV irradiation
31. d. Osteomalacia
32. c. Vitamin B1
33. a. Pellagra
34. b. Folic acid