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