Biology exam 1

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1.
1 point
Physiology is
2.
1 point
Choose the anatomical topic and definition that is not correctly matched
3.
1 point
the study of large body structures visible to the naked eye is called:
4.
1 point
Histology is defined as the study of:
5.
1 point
Place the following in correct sequence from simplest to most complex:

1.molecules
2.organ
3.atoms
4.tissues
5.cells
6.
1 point
One of the necessary life functions is responsiveness or irritability. This refers to:
7.
1 point
Which of the following would not be a necessary life function?
8.
1 point
Survival needs of the body include
9.
1 point
The ability to maintain a relatively stable internal environment is called?
10.
1 point
which of the following statements is true concerning feedback systems
11.
1 point
an example of a positive feedback mechanism would be:
12.
1 point
a control mechanism in which the output of the system enhances the effect of the original stimulus is a:
13.
1 point
which of the following statements is correct of homeostatic imbalance
14.
1 point
The organ system that is composed of the skin, glands, hair, and nails is the
15.
1 point
The atomic number of an element is
16.
1 point
if an atom of an element has 14 protons, 10 neutrons, and 14 electrons, what is its mass number?
17.
1 point
If an atom of an element has an atomic number of 8 and a mass number of 20, how many electrons does it have?
18.
1 point
The atomic weight of an element is equal to
19.
1 point
Isotopes of the same element have the same
20.
1 point
the four elements that make up about 96% of body mass are:
21.
1 point
select the statement about mixtures that is correct
22.
1 point
which of the following is true regarding the concentration of solutions
23.
1 point
elements that have their valence shell fully occupied by electrons are
24.
1 point
atoms with 6 or 7 valence shell electrons are
25.
1 point
select the statement that is correct regarding chemical bonds
26.
1 point
which of the following is true of hydrogen bonds
27.
1 point
a chemical reaction involving bond formation forming larger molecules
28.
1 point
which of the following is true of endergonic reactions
29.
1 point
in a redox reactions, the reactant that gains electrons is said to have been
30.
1 point
a reaction that involves the forming of a chemical bond with the loss of a molecule of water is called a ____ reaction
31.
1 point
Which of the following is not an important characteristic of water
32.
1 point
which of the following is an organic molecule
33.
1 point
Salts are:
34.
1 point
An acid is a compound which:
35.
1 point
A solution that has a pH of 3 is described as being
36.
1 point
Buffers are systems that
37.
1 point
Glucose, sucrose, and glycogen are all 3 examples of
38.
1 point
A long chain or polymer of simple sugars would be called a
39.
1 point
A phospholipid is composed of
40.
1 point
Cholesterol is an example of a:
41.
1 point
the coiling of the primary structure of a protein into an alpha helix or beta pleated sheet is referred to as
42.
1 point
fibrous proteins:
43.
1 point
which statement about enzymes is false
44.
1 point
which of the following would not be part of a DNA nucleotide
45.
1 point
the structural unit of nucleic acids is the