Biology 1111 Midterm 1 UPDATED ACTUAL Questions and CORRECT
Answers
Question: cells
Correct Answer: Basic unit of life
Question: organelles
Correct Answer: A specialized structure within a cell, such as a mitochondrion, vacuole, or chloroplast,
that performs a specific function. "little organs"
Question: What does pH measure?
Correct Answer: the concentration of hydrogen ions in a solution
Question: pH ranges
Correct Answer: acid:1-6; neutral:7; base:8-14
Question: Protein Structures
Correct Answer: primary, secondary, teritary, quaternary structure.
Question: Cell membrane structure
Correct Answer: fluid mosaic model semi-permeable (selectively permeable) double layer of
phospholipids with embedded proteins
Question: what does the membrane model show
Correct Answer: gives a perception of position in space while still
Question: Dehydration synthesis
Correct Answer: forms covalent bonds between monomers by removing water Ex)
Question: Hydrolysis
Correct Answer: break covalent bonds in polymers by adding water
Question: Scientific method
Correct Answer: A systematic process for making observations, forming a hypothesis, testing it, analyzing
results, and drawing a conclusion.
Question: Difference between a hypothesis and theory
Correct Answer: A ______ is an attempt to explain phenomena. It is a proposal, a guess used to explain
something. A _____ is the result of testing a ______ and developing an explanation that is taken to be true
about a phenomena. A _____ replaces the _____.
Question: Domains
Correct Answer: Archaea, Bacteria, Eukarya
Question: Archaea domain
Correct Answer: prokaryotes and live in some of the most extreme environments--volcanic hot springs,
brine pools, and black organic mud totally devoid of oxygen. Their cell walls lack peptidoglycan, and their
cell membranes contain unusual lipids that are not found in any other organisms
, Question: Bacteria domain
Correct Answer: prokaryotic, no nuclear membrane, traditionally classified as bacteria, contain most
known pathogenic prokaryotic organisms, studied far more extensively than Archaea
Question: Eukaryota domain
Correct Answer: eukaryotic, includes multicellular organisms that are either protist, fungi, plants, and
animals
Question: Kingdoms
Correct Answer: Major biological classification groups used to organize living organisms, such as
animals, plants, fungi, protists, bacteria, and archaea depending on the system used.
Question: Atom structure
Correct Answer: consists of a nucleus surrounded by one or more electrons. the electrons can either be
protons or neutrons.
Question: Charged atom
Correct Answer: ION
Question: ION
Correct Answer: an atom or group of atoms that has acquired a net electrical charge by gaining or losing
one or more electrons
Question: Atomic number
Correct Answer: Number of protons in the nucleus of an atom
Question: Atomic mass
Correct Answer: Protons + Neutrons
Question: Isotopes
Correct Answer: Atoms of the same element that have different numbers of neutrons.
Question: Monomer of polymer
Correct Answer: carbohydrate: Like most classes of biological molecules, _______occur as both
monomers and polymers. Small ______ are called sugars, which commonly include monosaccharides
(single sugars) and some disaccharides (two sugars linked together). Larger ______ are called
polysaccharides (many sugars linked together).
Question: Monomer of polymer
Correct Answer: nucleic acid: ______ are polymers of individual nucleotide monomers. Each nucleotide
is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Only two 5-carbon
sugars are found in nature: ribose and deoxyribose.
Question: Monomer of polymer
Correct Answer: Lipids:
Question: Monomer of polymer
Correct Answer: protein: _______ are polymers of about 20 amino acids (the monomer).
Answers
Question: cells
Correct Answer: Basic unit of life
Question: organelles
Correct Answer: A specialized structure within a cell, such as a mitochondrion, vacuole, or chloroplast,
that performs a specific function. "little organs"
Question: What does pH measure?
Correct Answer: the concentration of hydrogen ions in a solution
Question: pH ranges
Correct Answer: acid:1-6; neutral:7; base:8-14
Question: Protein Structures
Correct Answer: primary, secondary, teritary, quaternary structure.
Question: Cell membrane structure
Correct Answer: fluid mosaic model semi-permeable (selectively permeable) double layer of
phospholipids with embedded proteins
Question: what does the membrane model show
Correct Answer: gives a perception of position in space while still
Question: Dehydration synthesis
Correct Answer: forms covalent bonds between monomers by removing water Ex)
Question: Hydrolysis
Correct Answer: break covalent bonds in polymers by adding water
Question: Scientific method
Correct Answer: A systematic process for making observations, forming a hypothesis, testing it, analyzing
results, and drawing a conclusion.
Question: Difference between a hypothesis and theory
Correct Answer: A ______ is an attempt to explain phenomena. It is a proposal, a guess used to explain
something. A _____ is the result of testing a ______ and developing an explanation that is taken to be true
about a phenomena. A _____ replaces the _____.
Question: Domains
Correct Answer: Archaea, Bacteria, Eukarya
Question: Archaea domain
Correct Answer: prokaryotes and live in some of the most extreme environments--volcanic hot springs,
brine pools, and black organic mud totally devoid of oxygen. Their cell walls lack peptidoglycan, and their
cell membranes contain unusual lipids that are not found in any other organisms
, Question: Bacteria domain
Correct Answer: prokaryotic, no nuclear membrane, traditionally classified as bacteria, contain most
known pathogenic prokaryotic organisms, studied far more extensively than Archaea
Question: Eukaryota domain
Correct Answer: eukaryotic, includes multicellular organisms that are either protist, fungi, plants, and
animals
Question: Kingdoms
Correct Answer: Major biological classification groups used to organize living organisms, such as
animals, plants, fungi, protists, bacteria, and archaea depending on the system used.
Question: Atom structure
Correct Answer: consists of a nucleus surrounded by one or more electrons. the electrons can either be
protons or neutrons.
Question: Charged atom
Correct Answer: ION
Question: ION
Correct Answer: an atom or group of atoms that has acquired a net electrical charge by gaining or losing
one or more electrons
Question: Atomic number
Correct Answer: Number of protons in the nucleus of an atom
Question: Atomic mass
Correct Answer: Protons + Neutrons
Question: Isotopes
Correct Answer: Atoms of the same element that have different numbers of neutrons.
Question: Monomer of polymer
Correct Answer: carbohydrate: Like most classes of biological molecules, _______occur as both
monomers and polymers. Small ______ are called sugars, which commonly include monosaccharides
(single sugars) and some disaccharides (two sugars linked together). Larger ______ are called
polysaccharides (many sugars linked together).
Question: Monomer of polymer
Correct Answer: nucleic acid: ______ are polymers of individual nucleotide monomers. Each nucleotide
is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Only two 5-carbon
sugars are found in nature: ribose and deoxyribose.
Question: Monomer of polymer
Correct Answer: Lipids:
Question: Monomer of polymer
Correct Answer: protein: _______ are polymers of about 20 amino acids (the monomer).
