Bio 260 Midterm Study Guide Questions And Correct Answers
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Course
BIOL 260
Institution
BIOL 260
Bio 260 Midterm Study Guide Questions And
Correct Answers
Which of the following systems are not capable of producing antibodies that attach to foreign
substances? (Select all that apply) - answer- Cardiovascular
- Endocrine
- Lymphatic
Using the figure depicting homeostatic imbalance, which ...
Bio 260 Midterm Study Guide Questions And
Correct Answers
Which of the following systems are not capable of producing antibodies that attach to foreign
substances? (Select all that apply) - answer✔✔- Cardiovascular
- Endocrine
- Lymphatic
Using the figure depicting homeostatic imbalance, which letter would represent the "output?" -
answer✔✔D
Which of the following system plays a role in protecting underlying organs from environmental
damage and synthesizes vitamin D? - answer✔✔Integumentary
What feedback mechanism is used during childbirth? - answer✔✔positive feedback mechanism
Responsiveness or irritability is the ability to sense changes in the environment and then respond
to them. - answer✔✔True
Average body temperature is ________ degrees centigrade. - answer✔✔37
If you consider your home air conditioner in terms of homeostasis, then the wall thermostat
would be the ________. - answer✔✔control center
A structure that is composed of two or more tissue types that work together to perform specific
functions for the body is a(n) ________. - answer✔✔organ
Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
Select the most correct statement. - answer✔✔The immune system is closely associated with the
lymphatic system.
What is the main, general purpose of negative feedback? - answer✔✔to maintain homeostasis
Which of the following are functional characteristic of life? (Select all that apply) - answer✔✔-
movement
- maintenance of boundaries
- responsiveness to external stimuli
The numbers listed represent the number of electrons in the first, second, and third energy levels,
respectively. On this basis, which of the following is an unstable or reactive atom - answer✔✔2,
8, 1
A bond in which electrons are completely lost or gained by the atoms involved - answer✔✔Ionic
bond
First one or two letters of an element's name is the __________. - answer✔✔Atomic symbol
Isotopes differ from each other only in the number of electrons the atom contains. -
answer✔✔False
A dipeptide can be broken into two amino acids by dehydration synthesis. - answer✔✔False
Which of the following is are true of proteins? (Select all that apply) - answer✔✔- Their function
depends on their three-dimensional shape.
- They have both functional and structural roles in the body.
- They may be denatured or coagulated by heat or acidity.
Carbohydrates are stored in the liver and muscles in the form of ________. - answer✔✔glycogen
Which of the following does NOT describe enzymes? - answer✔✔Enzymes work by raising the
energy of activation.
A chemical reaction in which bonds are broken is usually associated with ________. -
answer✔✔the release of energy
What level of protein synthesis is represented by the coiling of the protein chain backbone into
an alpha helix? - answer✔✔secondary structure
The four elements that make up about 96% of body matter are ________. - answer✔✔carbon,
oxygen, hydrogen, nitrogen
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