Final review (exam 1)
an atom has the atomic mass of 30. there are 15 protons, how many electrons does it have?
15
the definition of a compound is best described as;
2 or more different kinds of atoms, chemically bound together and can't be broken apart physically
a dehydration synthesis reaction;
2 smaller molecules form a bond to make a larger molecule, while losing a molecule of water
place the following in correct sequence from simplest to most complex: 1. molecules 2. atoms 3. tissues 4. cells 5. organs
2-1-4-3-5
the single most abundant chemical substance of the body, accounting for 60% to 80% of body weight, is __________
H2O
the following is false regarding ionic bonds
H2O is a good example of an ionicly bonded molecule
a lipid is all of following except;
adiponyloids
if a pH value is 6, it is considered to be;
an acid
an isotope is;
an atom with different number of neutrons but the same number of protons
which of the following describes the function of the heart and blood vessels?
cardiovascular physiology
which of the following would not be considered to be a necessary lif function?
cellular permeability
all of the following can be easily broken down and digested except;
cellulose
enzymes all have the following characteristics except;
chemical reaction catalysts which generate less energy to make the reaction less expeditious
the HCL in the stomach is used primarily to;
denature proteins
a salt is also sometimes referred to as a(n) _________
electrolyte
a good example of a positive feedback mechanism would be ___________
enhancement of labor contractions
expiration is how the body removes excessive carbon dioxide from the blood. this is an example of __________
excretion of metabolic waste
the study of large body structures, visible to the naked eye, such as the heart is called ________ anatomy.
gross
anabolic reactions are chemical reactions of the body that build things, make them bigger or more complex. catabolic reactions break things down making them smaller or less complex. if the rate of anabolic reaction in the body is much faster than the rate of catabolic reactions which of the following necessary life function will be accomplished?
growth
the following are considered to be made of "structural" proteins except;
hemoglobin
active electrons of an atom are found;
in the valance (shell) level
water is an example of a(n);
inorganic compound and molecule
the skin, hair, nails and associated glands are part of the
integumentary system
which of the following statements is the most correct regarding homeostatic imbalance?
it is considered the cause of most diseases
the difference between kinetic energy and potential energy is;
kinetic= energy in motion/ potential= stored
a necessary life function is:
maintaining boundaries
the majority of elements (96%) existing in the human body are;
nitrogen, oxygen, carbon, and hydrogen
which of the following are survival need of the body?
nutrients, water, atmospheric pressure, and oxygen
the following is true about amino acids except;
only very specific combinations of proteins form them
a structure that is composed of two or more tissue types that work together to perform specific functions for the body is a (n)____________
organ
forms of energy incule all the following except: electrical mechanical chemical physiological
physiological
It is wise to study anatomy alongside with physiology because ________.
physiology is only explainable in terms of the underlying and related anatomy
the ATP molecule is an example of __________
potential
Choose the anatomical topic and definition that is not correctly matched.
regional anatomy: study of the structures in particular type of organism.
the study of kidney function is called __________ physiology
renal
the following is true about a colloid except;
sand and sugar mixture is a good example of a colloid
one of the functional characteristics of life is responsiveness. this refers to ________
sensing changes in the environment and then reacting or responding to them
When sending an instructor an e-mail;
subject line must contain your name, class and section. also, you should use proper salutation and closing. the body of the letter should have proper spelling, grammar, and punctuation.
select the most correct statement.
the immune system is closely associated with the lymphatic system
the following is true about DNA except;
the lipids which make up the DNA molecule, are primarily manufactured in the nucleus of cells
uracil replaces which nucleotide in RNA?
thymine
histology would be best defined as a study of __________
tissues
generally what is the result of the negative feedback process
to maintain a relatively stable condition of homeostasis by maintaining a set point
a "neutral fat" is;
triglyceride
if a "coenzyme" is present, it is usually made from;
vitamins
