A complex individual that consists of organ systems is known as a/an
A.
Community
B.
Population
C.
organism
D.
Tissue
E.
species.
Scientists who have a financial stake in a company are now required to state that when they do research.
This is an example of
A.
ethics in science.
B.
financial planning.
C.
a new business model.
D.
a biotechnology revolution.
E.
statistical significance.
Which of the following is not a basic characteristic of all living things?
A.
Living things are organized.
B.
Living things acquire materials and energy.
C.
Living things contain a nucleus and organelles.
D.
Living things reproduce.
E.
Living things grow and develop.
In a graph, the experimental variable is plotted on the
A.
x axis.
B.
y axis.
C.
x and y axis.
D.
z axis.
E.
x and z axis.
The development of resistance of MRSA bacteria to antibiotics is an example of
A.
homeostasis.
B.
metabolism.
C.
evolution.
D.
reproduction.
E.
organization.
The cause of stomach ulcers appears to be
A.
excess stomach acid.
B.
the bacterium Helicobacter pylori.
C.
drinking too much coffee.
D.
extreme stress.
E.
diets rich in meat products.
The process of change that produces the diversity of life on Earth is called
A.
evolution.
B.
homeostasis.
C.
levels of organization.
D.
biological classification.
E.
molecular diversification.
Viruses are not considered alive.
Which of the following characteristics of living things do they lack?
A.
Living things reproduce.
B.
Living things have an evolutionary history.
C.
Living things grow and develop.
D.
Living things respond to stimuli.
E.
Living things acquire energy.
Which of the following is not a basic theory of biology
A.
Theory of ecosystems
B.
Cell theory
C.
Gene theory
D.
Theory of evolution
E.
Theory of gravity
After studying biology, it is hoped that you
A.
will become an animal rights activist.
B.
will be better able to make wise decisions regarding your own well being and the Earth's.
C.
will get a high paying job as a biologist.
D.
will understand all there is to know about humans and biology.
E.
will dislike anything to do with biology.
Which of the following nitrogenous bases is NOT found in DNA?
A.
cytosine
B.
thymine
C.
uracil
D.
guanine
E.
adenine
Which grouping of elements is found in carbohydrates?
A.
C-H-O
B.
C-H-P
C.
H-O-Cl
D.
N-S-O
E.
Ca-H-O
Isotopes of an element differ due to the number of
A.
protons.
B.
neutrons.
C.
electrons.
D.
both protons and electrons.
E.
neutrinos.
An alpha helix or a beta sheet are examples of what level of protein structure?
A.
secondary
B.
primary
C.
tertiary
D.
quaternary
E.
octagon
Which of the following is not a function of proteins?
A.
quick energy
B.
support
C.
transport
D.
enzymes
E.
motion
When two amino acids combine via a dehydration reaction,
A.
a peptide bond is formed.
B.
the R groups are lost.
C.
water is added to begin the reaction.
D.
the carboxyl group of each join together.
E.
the amino group of each join together.
Be has an atomic number of 4 and an atomic mass of 9.
How many protons does it have?
A.
4
B.
5
C.
9
D.
13
E.
7
Which polysaccharide is consumed as a source of fiber?
A.
cellulose
B.
glycogen
C.
glucose
D.
chitin
E.
starch
In an atom, the number of protons always equals the number
A.
of electrons.
B.
of neutrons.
C.
of neutrons and protons.
D.
of quarks.
E.
of neutrinos.
Hydrogen bonds
A.
result from the loss of neutrons by an atom.
B.
result in the formation of salts.
C.
involve the loss and gain of electrons.
D.
involve the sharing of electrons.
E.
are relatively weak and can be broken rather easily.
ATP carries energy in the form of high-energy
A.
carbohydrate bonds.
B.
peptide bonds.
C.
lipid bonds.
D.
phosphate bonds.
E.
hydrogen bonds
Inthesimulation,sodiumchloridewasabletodiffusethroughwhichmembrane(s)?(Themolecular 3.0/3.0Points weight of sodium is 23, chlorine is 35)
A.
20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCO
B.
50 MWCO, 100 MWCO, and 200 MWCO
C.
100 MWCO and 200 MWCO
D.
200 MWCO only
E.
Sodium chloride would not pass through any of these membranes.
Which of the following solutes would move the slowest?
A.
urea
B.
albumin
C.
sodium ion (Na+)
D.
glucose
Consider the following experiment: A 100 MWCO membrane is in place, 10 mM glucose is placed in the left beaker and 10 mM albumin is placed in the right beaker.
Which of the following is true?
A.
There is no net movement of water or solutes across the membrane.
B.
The net movement of water is toward the albumin.
C.
The net movement of water is toward the glucose.
D.
Albumin and glucose diffuse through the membrane.
If a semipermeable membrane allows water to pass, but is impermeable to solutes, which of the following is true?
A.
Water will move toward the more concentrated solutes.
B.
Osmosis will not occur.
C.
Water will move away from the concentrated solutes.
D.
Water and solutes will move until equilibrium is reached.
In the simulation, albumin was able to diffuse through which membrane(s)?
A.
200 MWCO only
B.
100 MWCO and 200 MWCO
C.
50 MWCO, 100 MWCO, and 200 MWCO
D.
20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCO
E.
Albumin was unable to diffuse through any of the membranes.
When the solutes are evenly distributed throughout a solution, we say the solution has reached _______.
A.
diffusion
B.
velocity
C.
permeability
D.
equilibrium
Which of the following solutes would move the fastest?
A.
urea
B.
glucose
C.
sodium ion (Na+)
D.
albumin
Briefly describe what occurs when a red blood cell is placed in water (a hypotonic solution).
The cell will shrink as water is drawn out of it.
Define the term "diffusion."
Instructions
Instructions:
- Click on the Browse button to find the lab report on your computer. 2. Click on the Upload button to attach your lab report to the quiz.
Question 32 of 32
Attach your completed Lab Exercise 1, Activity 1: Simulating Dialysis lab report (PEX-01- 01_FirstnameLastname.pdf) as the answer to this question.