When a cell is placed in a solution that is more concentrated, water will leave the cell
and the cell will shrink. What will happen to the rate of chemical reactions in this
situation? - ️️The rate of chemical reactions will speed up
What is NOT the result of a negative feedback mechanism? -...
BSC2085 MIDTERM
When a cell is placed in a solution that is more concentrated, water will leave the cell
and the cell will shrink. What will happen to the rate of chemical reactions in this
situation? - ✔️✔️The rate of chemical reactions will speed up
What is NOT the result of a negative feedback mechanism? - ✔️✔️Blood clotting when
the lining of a blood vessel is injured
When a cell is placed in a solution that is more very dilute, water will enter the cell
causing the cell to expand. What will happen to chemical reactions in this situation? -
✔️✔️The rate of chemicals will slow down
Mary is 50 years old. During a checkup, a bone scan reveals that portions of her
skeleton show signs of osteoporosis. After reviewing the test results, her physician
suggests hormone therapy. What hormone is prescribed to Mary? - ✔️✔️Estrogen
How is the palmar faced when in anatomical position? - ✔️✔️Anterior
The result or response that enhances the original stimulus, and that the response is
accelerated. - ✔️✔️Positive feedback
A result of homeostatic imbalance could be _______________. - ✔️✔️Disease
Where are achromial and brachial located? - ✔️✔️Upper limb
All of the following are correct positioning when placing the body in anatomical position,
except when ___________________. - ✔️✔️The thumbs are pointing medially
Inguinal is the more medically accurate term for ______________? - ✔️✔️Groin
Example of positive feedback mechanism? - ✔️✔️Blood clotting
Anatomical position is characterized by _______________? - ✔️✔️The pollex at the
most lateral feature
What does sural refer to? - ✔️✔️The calf
The term "digital" can be referred to what to parts of body? - ✔️✔️Manus and pedal
,What type of chemical reaction always involves atoms or molecules combining to form a
larger, more complex molecule? - ✔️✔️Synthesis
What would speed up the rate of a chemical reaction? - ✔️✔️High concentration of
reagents
Buffers tend to prevent dramatic changes in the pH when _______________ are added
to the solution. - ✔️✔️Proton donors and proton acceptors
pH is a concentration unit used to measure the concentration of _______________. -
✔️✔️Hydrogen ions in a solution
When a person has a fever, what happens to the chemical reactions in the body? -
✔️✔️The chemical reactions will speed up
Fever is a body defense mechanism that speeds healing by increasing enzyme actions
that are necessary to overcome a pathogen. However, temperature can also have
which negative effect? - ✔️✔️Just as with acidity, temperature can denature proteins
Match the following: A + B ---> AB - ✔️✔️Synthesis reaction
What general function is likely to be affected the least by a pH denaturation? -
✔️✔️Movement
Catabolic reactions involve _______________. - ✔️✔️Release of energy
When proteins undergo dehydration, what subatomic particles are rearranged the most?
- ✔️✔️Electrons
In biochemistry, and this in the body, the universal solvent is ______________. -
✔️✔️Water
An acidic solution in and around a cell would have the most immediate effect on cellular
function for which type of organic molecule? - ✔️✔️Proteins
Something with a pH of 5 would ______________. - ✔️✔️Have more H+ ions than OH-
ions
All electrolytes are ______________. - ✔️✔️Ions
H+ ions can disrupt the hydrogen bonds that hold proteins in the correct shape. -
✔️✔️pH is an important factor in heath because ______________.
, Match the following: AB + C ---> AC + B - ✔️✔️Exchange reaction
What is the most common element in the body? - ✔️✔️Oxygen
If a cell were to become larger, but not gain or lose any of the chemicals inside, what
would happen to the rate of chemical reactions? - ✔️✔️Chemical reactions would slow
down
A protein that is not embedded in the lipid bilayer - ✔️✔️Peripheral protein
The force that solutes have to attract water - ✔️✔️Osmotic pressure
The force of a liquid pushing against something - ✔️✔️Hydrostatic pressure
Proteins in the cell membrane that bind hormones and relay messages into their interior
of the cell preform a function known as - ✔️✔️Signal transduction
A protein that is firmly inserted into the lipid bilayer - ✔️✔️Integral protein
The outer boundary of a human cell is the _______________. - ✔️✔️Plasma
membrane
Active membrane transport process - ✔️✔️Exocytosis
Correctly match the term and definition: a plasma membrane lipid that stabilizes the
plasma membrane - ✔️✔️Cholestrol
Water-fearing - ✔️✔️Hydrophobic
Cells may be said to be "sugar-coated" due to the presence of ______________. -
✔️✔️Glycocalyx
Consists of the spleen, lymph nodes, thymus, bone marrow, and lymphatic vessels -
✔️✔️Lymphatic system
What acts as a fast-acting control system for the body? - ✔️✔️Nervous
The digestive system does what? - ✔️✔️Breaks down food
The respiratory system does what? - ✔️✔️Supplies the body with oxygen and
eliminates carbon dioxide waste
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