Biology 101 Test 1 (Full Study Guide)
Questions and Answers 2025
About 25 of the 92 natural elements are known to be essential to life. Which 4 of these
25 make of 96% of living matter? - CORRECT ANSWERS -carbon, hydrogen, nitrogen,
oxygen
Knowing just the whole number of an element allows inferences about which of the
following? - CORRECT ANSWERS -the number of protons plus neutrons in the element
When two atoms have the same level of attraction for electrons, the type of interaction
between these two atoms can be described as - CORRECT ANSWERS -nonpolar
covalent bond
What is the difference between covalent bonds and ionic bonds? - CORRECT
ANSWERS -Covalent bonds involve the sharing of electrons between atoms; ionic
bonds involve the electrical attraction between atoms of opposite charge
The element present in all organic molecules is - CORRECT ANSWERS -carbon
A carbon atom is most likely to form which of the following bonds with other atoms? -
CORRECT ANSWERS -Covalent bonds
Which two functional groups are always found in amino acids? - CORRECT ANSWERS
-carboxyl and amino
Which of the following is NOT a correct monomer/polymer pairing defining a
macromolecule? - CORRECT ANSWERS -Amino acid/DNA
Which of the following best summarizes the relationship between dehydration reactions
and hydrolysis? - CORRECT ANSWERS -Dehydration reactions assemble polymers,
and hydrolysis reactions break down polymers
The smallest unit show below is: - CORRECT ANSWERS -atom
In the scientific method, a formulation of a hypothesis occurs before the: - CORRECT
ANSWERS -It comes first
During the citric acid cycle which is not produced: - CORRECT ANSWERS -NADPH
A process which occurs in muscle cells during periods of oxygen deprivation is: -
CORRECT ANSWERS -anaerobic respiration
ATP is involved in the process of: - CORRECT ANSWERS -active transport
Phagocytosis is a type of: - CORRECT ANSWERS -Endocytosis
Golgi complex - CORRECT ANSWERS -protein processing
Lysosomes - CORRECT ANSWERS -Contain digestive enzymes that act on particles
that are phagocytosed
Mitochondria - CORRECT ANSWERS -Aerobic cellular respiration
Smooth ER - CORRECT ANSWERS -detoxification of alcohol and membrane lipid
production
Rough ER - CORRECT ANSWERS -its ribsomes produce secretory proteins
Plasma Membrane - CORRECT ANSWERS -A fluid mosaic
Thlyakoid - CORRECT ANSWERS -light-dependent reactions
Water - CORRECT ANSWERS -high specific heat
Carbon Dioxide - CORRECT ANSWERS -organic fuel for photosynthesis
Questions and Answers 2025
About 25 of the 92 natural elements are known to be essential to life. Which 4 of these
25 make of 96% of living matter? - CORRECT ANSWERS -carbon, hydrogen, nitrogen,
oxygen
Knowing just the whole number of an element allows inferences about which of the
following? - CORRECT ANSWERS -the number of protons plus neutrons in the element
When two atoms have the same level of attraction for electrons, the type of interaction
between these two atoms can be described as - CORRECT ANSWERS -nonpolar
covalent bond
What is the difference between covalent bonds and ionic bonds? - CORRECT
ANSWERS -Covalent bonds involve the sharing of electrons between atoms; ionic
bonds involve the electrical attraction between atoms of opposite charge
The element present in all organic molecules is - CORRECT ANSWERS -carbon
A carbon atom is most likely to form which of the following bonds with other atoms? -
CORRECT ANSWERS -Covalent bonds
Which two functional groups are always found in amino acids? - CORRECT ANSWERS
-carboxyl and amino
Which of the following is NOT a correct monomer/polymer pairing defining a
macromolecule? - CORRECT ANSWERS -Amino acid/DNA
Which of the following best summarizes the relationship between dehydration reactions
and hydrolysis? - CORRECT ANSWERS -Dehydration reactions assemble polymers,
and hydrolysis reactions break down polymers
The smallest unit show below is: - CORRECT ANSWERS -atom
In the scientific method, a formulation of a hypothesis occurs before the: - CORRECT
ANSWERS -It comes first
During the citric acid cycle which is not produced: - CORRECT ANSWERS -NADPH
A process which occurs in muscle cells during periods of oxygen deprivation is: -
CORRECT ANSWERS -anaerobic respiration
ATP is involved in the process of: - CORRECT ANSWERS -active transport
Phagocytosis is a type of: - CORRECT ANSWERS -Endocytosis
Golgi complex - CORRECT ANSWERS -protein processing
Lysosomes - CORRECT ANSWERS -Contain digestive enzymes that act on particles
that are phagocytosed
Mitochondria - CORRECT ANSWERS -Aerobic cellular respiration
Smooth ER - CORRECT ANSWERS -detoxification of alcohol and membrane lipid
production
Rough ER - CORRECT ANSWERS -its ribsomes produce secretory proteins
Plasma Membrane - CORRECT ANSWERS -A fluid mosaic
Thlyakoid - CORRECT ANSWERS -light-dependent reactions
Water - CORRECT ANSWERS -high specific heat
Carbon Dioxide - CORRECT ANSWERS -organic fuel for photosynthesis
