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Chemistry
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Chapter 7
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
All below are major biochemical groups in the body EXCEPT
carbohydrates
lipids
acid mantle
proteins
2
Deals with matter that is living or was living at some time; study of matter containing carbon
biochemistry
inorganic chemistry
anatomy
organic chemistry
3
How many elements occur naturally in nature?
70
86
92
102
4
A simple unit of a carbohydrate is...?
Disaccharide
polysaccharide
saccharide
monosaccharide
5
The unifying concept used to organize elements and their properties is called...
atomic number
periodic law
periodic table of elements
element
6
Which of the following is NOT true of amino acids...
they consist of carbon, oxygen, hydrogen, and nitrogen
they dissolve and break down larger molecules
they join in chains to form proteins
there are 22 common amino acids
7
Which statement is NOT true of a physical change...
freezing water into an ice cube is an example
a new substance with a diff. material composition is created
changes always involve either the gain or loss of energy
chemical structure does not change
8
All of the following statements are true about liquids EXCEPT...
they have definite shape
they take the shape of whatever they are poured in
they have definite weight
they have definite volume
9
Study of matter that was never living; does not contain carbon
organic chemistry
anatomy
biochemistry
inorganic chemistry
10
Thousands of amino acids connected lengthwise is called a...?
polymer
amino acid bon
monomer
polypeptide chain
11
True or False, solids have a definite shape and weight...
false
true
12
Which of the following occurs when a substance gains an electron and oxygen is released...?
covalent bond
ionic bond
reduction
sublimination
13
What types of atoms are not missing any electrons in their outermost orbit shell?
stable atoms
unstable atoms
compound atoms
molecule
14
Which of the following is NOT an example of a lipid...?
triglycerides
steroids
fats
liquid
15
The ability to do work and accomplish change is...
matter
change
energy
sublimination
16
True or False, gasses have a definite volume and shape
false
true
17
The basic building blocks of the body, used to construct and renew itself...
carbohydrates
lipids
proteins
saccharide
18
The study of chemical reactions, such as growth, reproduction, and respiration...
inorganic chemistry
organic chemistry
anatomy
biochemistry
19
All of the following makeup our hair, skin, and nails EXCEPT...
carbon
helium
sulfur
oxygen
20
What is the smallest complete unit of an element...?
atom
gas
compound
molecule
