BSC 2093 Final IRSC Questions and Answers
2023/2024
is the study of function - ANSW physiology
which of the following is a direct example of the study of physiology - ANSW measuring
heart rate and noting blood pressure
the process of maintaining constant internal internal condition is called: - ANSW
homeostasis
the internal environment of an organism never changes - ANSW false
Life's levels of organization - ANSW atom, molecule, cell, tissue, organ, organ system,
organism, population, community, ecosystem, biosphere
which would be an example of positive feedback - ANSW
Which of the following is a characteristic of living organisms - ANSW growth, regulation,
reproduction
Define organ - ANSW two or more tissues working to perform several functions
the wrist is _____ to the elbow - ANSW distal
Molecules composed of two or more atoms are called compounds. - ANSW true
The number of protons in an atom equals the number of - ANSW electrons
Isotopes of an atom differ in number of their: - ANSW neutrons
Ionic bonds are: - ANSW attractions between oppositely charged ions
What type of bond attracts one water molecule to another: - ANSW a hydrogen bond
Which of these is a cation - ANSW Ca2+
Which of these has the highest H+ concentration? - ANSW lemon juice, pH = 2.3
, Any chemical reaction that removes electrons from an atom is called: - ANSW oxidation
The breakdown of glycogen (an energy-storage compound) is an example of a(n)
___________ reaction - ANSW
_________ converts a _________ to its monomers - ANSW hydrolysis; polymer
_______ is a monosaccharide, whereas _________ is a polysaccharide - ANSW
fructose; sucrose
A drastic conformational change in proteins in response to conditions such as extreme
heat or pH will lead to loss of a protein's function. This drastic change in three-
dimensional shape is called - ANSW denaturation
Enzymes are specific to substrates because of the shape of their - ANSW active sites
Nucleic acids are ______ of ______. - ANSW polymers; nucleotides
the greater the concentration gradient the faster the diffusion rate - ANSW true
The nucleus is the largest organelle in most cells - ANSW true
________ cells are flat, scale-shaped cells - ANSW squamous
All of the generalizations below constitute the modern cell theory except - ANSW all
cells occupy space
A red blood cell is placed in a hypertonic solution. The concentration of solutes in the
solution is _________ than the concentration of solutes in the intracellular fluid will
cause the cell to _________ - ANSW higher; shrink
White blood cells engulf bacteria by means of: - ANSW phagocytosis
Muscle cells contain numerous _____________ to serve their high demand for ATP. -
ANSW mitochondria
This organelle synthesizes steroids in the ovary and stores calcium in muscle cells -
ANSW smooth ER
Mitosis is responsible for tissue growth and repair - ANSW true
DNA is a polymer of ________, which consists of a sugar, a phosphate group, and a
_________ - ANSW nucleotides; nitrogenous base
2023/2024
is the study of function - ANSW physiology
which of the following is a direct example of the study of physiology - ANSW measuring
heart rate and noting blood pressure
the process of maintaining constant internal internal condition is called: - ANSW
homeostasis
the internal environment of an organism never changes - ANSW false
Life's levels of organization - ANSW atom, molecule, cell, tissue, organ, organ system,
organism, population, community, ecosystem, biosphere
which would be an example of positive feedback - ANSW
Which of the following is a characteristic of living organisms - ANSW growth, regulation,
reproduction
Define organ - ANSW two or more tissues working to perform several functions
the wrist is _____ to the elbow - ANSW distal
Molecules composed of two or more atoms are called compounds. - ANSW true
The number of protons in an atom equals the number of - ANSW electrons
Isotopes of an atom differ in number of their: - ANSW neutrons
Ionic bonds are: - ANSW attractions between oppositely charged ions
What type of bond attracts one water molecule to another: - ANSW a hydrogen bond
Which of these is a cation - ANSW Ca2+
Which of these has the highest H+ concentration? - ANSW lemon juice, pH = 2.3
, Any chemical reaction that removes electrons from an atom is called: - ANSW oxidation
The breakdown of glycogen (an energy-storage compound) is an example of a(n)
___________ reaction - ANSW
_________ converts a _________ to its monomers - ANSW hydrolysis; polymer
_______ is a monosaccharide, whereas _________ is a polysaccharide - ANSW
fructose; sucrose
A drastic conformational change in proteins in response to conditions such as extreme
heat or pH will lead to loss of a protein's function. This drastic change in three-
dimensional shape is called - ANSW denaturation
Enzymes are specific to substrates because of the shape of their - ANSW active sites
Nucleic acids are ______ of ______. - ANSW polymers; nucleotides
the greater the concentration gradient the faster the diffusion rate - ANSW true
The nucleus is the largest organelle in most cells - ANSW true
________ cells are flat, scale-shaped cells - ANSW squamous
All of the generalizations below constitute the modern cell theory except - ANSW all
cells occupy space
A red blood cell is placed in a hypertonic solution. The concentration of solutes in the
solution is _________ than the concentration of solutes in the intracellular fluid will
cause the cell to _________ - ANSW higher; shrink
White blood cells engulf bacteria by means of: - ANSW phagocytosis
Muscle cells contain numerous _____________ to serve their high demand for ATP. -
ANSW mitochondria
This organelle synthesizes steroids in the ovary and stores calcium in muscle cells -
ANSW smooth ER
Mitosis is responsible for tissue growth and repair - ANSW true
DNA is a polymer of ________, which consists of a sugar, a phosphate group, and a
_________ - ANSW nucleotides; nitrogenous base
