Answer the following statements true (T) or false (F)
1. Emulsions and colloids are the same thing.
2. Chemical properties are determined primarily by neutrons.
3. A charged particle is generally called an ion.
4. Isotopes differ from each other only in the number of electrons contained.
5. About 60% to 80% of the volume of most living cells consists of organic compounds.
1. TRUE
2. FALSE
3. TRUE
4. FALSE
5. FALSE
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In the centrifuged sample of blood illustrated, which number indicates the layer containing water, plasma proteins, nutrients, and waste products?
A. 1 B. 2 C. 3 D. None of the answers is correct.
Which of the following are functions of proteins?
A) support B) defense C) metabolic regulation D) buffering E) All of these are functions of proteins.
The four elements that make up about 96% of body weight are ________
A) carbon, oxygen, hydrogen, nitrogen B) carbon, oxygen, phosphorus, calcium C) nitrogen, hydrogen, calcium, sodium D) sodium, potassium, hydrogen, oxygen
Edema is
A) a response to dehydration. B) abnormal accumulation of extracellular fluid. C) caused by depressed venous pressure. D) caused by hyperproteinemia.