Exam1cellbiolnocreditanswerkey

Which of these is the smallest level of organization that still has all the characteristics of life?

Which level of organization would include all members of the same species living in an ecosystem?

The ability to maintain a constant internal environment is:

Organisms that are prokaryotes are in the domains:

Scientists have observed any two bodies in the universe will attract each other. The force of this attraction is dependent on their size and how close together they are. What is this an example of?

An experiment is conducted to test the effectiveness of acupuncture.  One set of 50 patients with back pain is given acupuncture treatment, using needles that puncture the skin.  Another set of 50 patients is given a similar treatment, but with toothpicks that do not puncture the skin.  Each set of patients was blindfolded, so they could not see the treatment being given.  Doctors reported that 62% of the acupuncture group showed improvement, while only 44% of the toothpick group showed improvement.

In this experiment, what were the two variables?

An experiment is conducted to test the effectiveness of acupuncture.  One set of 50 patients with back pain is given acupuncture treatment, using needles that puncture the skin.  Another set of 50 patients is given a similar treatment, but with toothpicks that do not puncture the skin.  Each set of patients was blindfolded, so they could not see the treatment being given.  Doctors reported that 62% of the acupuncture group showed improvement, while only 44% of the toothpick group showed improvement.

Of the two groups tested, which was the control group?

This is the periodic table for potassium.  How many electrons would be present in a NEUTRAL atom of potassium?

The potassium ion is one of the most common electrolytes found in the human body. If the symbol for the potassium ion is K+, how is it different than a neutral potassium ion?

Isotopes of the same element differ in the number of:

Of the following, a pH of __________ is the most acidic.

Water is important to living organisms because:

Which of these atoms forms four covalent bonds, is found in every macromolecule, and serves as the basis of organic chemistry?

Which of these is not true about starch?

Plants store their excess carbohydrates in the form of:

An example of a saturated fat would be:

Which of these is a structural difference of DNA compared to RNA?

What determines the function of a protein?

Enzymes are a type of protein. Which of these protein functions do they fulfill?

Which of these changes would most likely NOT result in denaturation of a protein?