BIO 101 EXAM 2 NVCC ACTUAL EXAM
SCRIPT 2026 100 REAL QUESTIONS AND
DETAILED SOLUTIONS
⩥ Which is not a requirement for natural selection to occur?
A) Random mating
B) Competition for limited resources
C) Variation in the offspring
D) Unequal reproductive success. Answer: A
⩥ Which of the following could accept one (and only one) electron?
A) carbon (atomic number = 6)
B) nitrogen (atomic number = 7)
C) oxygen (atomic number = 8)
D) hydrogen (atomic number = 1). Answer: D
⩥ What is the maximum number of single covalent bonds a carbon atom
(atomic number 6) can form with other elements?
A) 1
B) 2
C) 3
D) 4. Answer: D
,⩥ The functional group -NH2 is called the ________ group.
A) methyl
B) alcohol
C) amino
D) carboxyl. Answer: C
⩥ Which combination describes the plasma membrane?
A) Hydrophilic interior, hydrophobic exterior
B) Hydrophilic interior and exterior
C) Hydrophobic interior, hydrophilic exterior
D) Hydrophobic interior and exterior. Answer: C
⩥ Identify the substrate in the following reaction: Sucrose → Fructose +
Glucose
A) Sucrose
B) Fructose
C) Glucose
D) Fructose and glucose. Answer: A
⩥ The elements that make up the bulk of the Human body are...
A) Carbon, Water and Nitrogen
, B) Carbon, Hydrogen, Oxygen and Nitrogen,
C) Carbon, Helium, Oxygen, Nitrogen and
D) Carbon, Oxygen, Nitrogen and Iron. Answer: B
⩥ The earth's crust and Human bodies are made of the same elements in
similar amounts.
True
False. Answer: False
⩥ In chemical bonding, when the bonded atoms share electrons, it is
specifically called ________.
A) an ionic bond
B) a covalent bond
C) a hydrogen bond
D) a polar bond. Answer: A
⩥ The breaking of a large organic molecule into smaller individual
subunits involves multiple ________.
A) hydrolysis reactions
B) osmotic reactions
C) dehydration synthesis reactions
D) hydrosynthetic reactions. Answer: A
SCRIPT 2026 100 REAL QUESTIONS AND
DETAILED SOLUTIONS
⩥ Which is not a requirement for natural selection to occur?
A) Random mating
B) Competition for limited resources
C) Variation in the offspring
D) Unequal reproductive success. Answer: A
⩥ Which of the following could accept one (and only one) electron?
A) carbon (atomic number = 6)
B) nitrogen (atomic number = 7)
C) oxygen (atomic number = 8)
D) hydrogen (atomic number = 1). Answer: D
⩥ What is the maximum number of single covalent bonds a carbon atom
(atomic number 6) can form with other elements?
A) 1
B) 2
C) 3
D) 4. Answer: D
,⩥ The functional group -NH2 is called the ________ group.
A) methyl
B) alcohol
C) amino
D) carboxyl. Answer: C
⩥ Which combination describes the plasma membrane?
A) Hydrophilic interior, hydrophobic exterior
B) Hydrophilic interior and exterior
C) Hydrophobic interior, hydrophilic exterior
D) Hydrophobic interior and exterior. Answer: C
⩥ Identify the substrate in the following reaction: Sucrose → Fructose +
Glucose
A) Sucrose
B) Fructose
C) Glucose
D) Fructose and glucose. Answer: A
⩥ The elements that make up the bulk of the Human body are...
A) Carbon, Water and Nitrogen
, B) Carbon, Hydrogen, Oxygen and Nitrogen,
C) Carbon, Helium, Oxygen, Nitrogen and
D) Carbon, Oxygen, Nitrogen and Iron. Answer: B
⩥ The earth's crust and Human bodies are made of the same elements in
similar amounts.
True
False. Answer: False
⩥ In chemical bonding, when the bonded atoms share electrons, it is
specifically called ________.
A) an ionic bond
B) a covalent bond
C) a hydrogen bond
D) a polar bond. Answer: A
⩥ The breaking of a large organic molecule into smaller individual
subunits involves multiple ________.
A) hydrolysis reactions
B) osmotic reactions
C) dehydration synthesis reactions
D) hydrosynthetic reactions. Answer: A
