Bio 260 Midterm Study Guide Questions And Answers 100% Verified.
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Course
Bio 260
Institution
Bio 260
Bio 260 Midterm Study Guide Questions And Answers 100% Verified.
Which of the following systems are not capable of producing antibodies that attach to foreign substances? (Select all that apply) - correct answer. - Cardiovascular
- Endocrine
- Lymphatic
Using the figure depicting...
Bio 260 Midterm Study Guide Questions
And Answers 100% Verified.
Which of the following systems are not capable of producing antibodies that attach to
foreign substances? (Select all that apply) - correct answer. - Cardiovascular
- Endocrine
- Lymphatic
Using the figure depicting homeostatic imbalance, which letter would represent the
"output?" - correct answer. D
Which of the following system plays a role in protecting underlying organs from
environmental damage and synthesizes vitamin D? - correct answer. Integumentary
What feedback mechanism is used during childbirth? - correct answer. positive
feedback mechanism
Responsiveness or irritability is the ability to sense changes in the environment and
then respond to them. - correct answer. True
Average body temperature is ________ degrees centigrade. - correct answer. 37
If you consider your home air conditioner in terms of homeostasis, then the wall
thermostat would be the ________. - correct 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) ________. - correct answer. organ
Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
, 5. organs - correct answer. 2-1-4-3-5
Select the most correct statement. - correct answer. The immune system is closely
associated with the lymphatic system.
What is the main, general purpose of negative feedback? - correct answer. to
maintain homeostasis
Which of the following are functional characteristic of life? (Select all that apply) - correct
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 - correct answer. 2, 8, 1
A bond in which electrons are completely lost or gained by the atoms involved - correct
answer. Ionic bond
First one or two letters of an element's name is the __________. - correct answer.
Atomic symbol
Isotopes differ from each other only in the number of electrons the atom contains. -
correct answer. False
A dipeptide can be broken into two amino acids by dehydration synthesis. - correct
answer. False
Which of the following is are true of proteins? (Select all that apply) - correct 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 ________. - correct
answer. glycogen
Which of the following does NOT describe enzymes? - correct answer. Enzymes work
by raising the energy of activation.
A chemical reaction in which bonds are broken is usually associated with ________. -
correct answer. the release of energy
What level of protein synthesis is represented by the coiling of the protein chain
backbone into an alpha helix? - correct answer. secondary structure
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