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Chapter 2 Review 2

Test Description: More Chapter 2 Review

Instructions: Answer all questions to get your test result.

1) Which of the following are true?

AHCO3 is a base that the body uses as a buffer BHCO3 is bicarbonate ion Ccarbonic acid dissociates into bicarbonate ions and hydrogen Dall of these

2) Which is false regarding ATP?

AATP is hydrolyzed to provide energy for cellular needs Bit is made up of ADP and Pi CATP stands for adenosine triphosphate Dlife can go on without ATP

3) The four elements that comprise roughly 96% of the human body are:

Acarbon, hydrogen, oxygen, calcium Bcarbon, hydrogen, oxygen, sodium Ccarbon, hydrogen, oxygen, nitrogen Dcarbon, hydrogen, oxygen, potassium

4) Which fat-soluable vitamin is produced when the skin is exposed to sunlight and is essential for normal bone growth?

Avitamin D Bvitamin K Cvitamin A Dvitamin E

5) What am I? I am a heterogenous mixture that often appears translucent. My particles are large but they do not settle out although they do scatter light. An example of me is Jell-O.

Asuspension Bcolloid Cmolecule Dcompound

6) Which element is present in bone and is also an important cofactor in a number of metabolic reactions?

Airon Biodine Chydrogen Dmagnesium

7) Which element is a component of hemoglobin?

Asulfur Bchlorine Ciron Diodine

8) The mass number of an atom is:

Anone of these Bthe sum of the masses of its electrons and neutrons Cthe sum of the masses of its protons and electrons Dthe sum of the masses of its protons and neutrons

9) Which of the following is/are true of isotopes

Aunstable isotopes are radioisotopes and are used in medical imaging Bsame number of protons and electrons but different number of neutrons Call are true Delements with two or more structural variations

10) C6H12O6 is:

Aglucose Ba carbohydrate C6 cargon atoms, 12 hydrogen atoms, 6 oxygen atoms Dall of these

*select an answer for all questions

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