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Chemistry for Biology Test Review
Chemistry for Biology Test Review
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Glencoe Science 6-3 & 6-4 Review #biology #chemistryofbiology
Flashcards
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Questions
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Answers
1
Starches and sugars are examples of what group of organic compounds?
proteins
carbohydrates
fats
nucleic acids
2
Keeping internal conditions constant or within a range of normal.
homeopathology
homeostasis
buffer
hygienic
3
Acids release __________ ions in water and therefore have a pH range of ____________.
hydrogen & 0-7
hydroxide & 7-14
hydroxide & 0-7
hydrogen & 7-14
4
A hydrogen bond can form between a hydrogen atom of one molecule and which atom of another?
carbon
sodium
oxygen
hydrogen
5
Which describes a substance formed by the chemical combination of two or more elements?
isotope
enzyme
compound
ion
6
Which macromolecule is made up of carbon, hydrogen, oxygen, and nitrogen (C,H,O, & N)?
protein
nucleic acid
lipid
carbohydrate
7
The nucleus of an atom is made up of ____.
protons and electrons
protons neutrons, and electrons
protons and neutrons
electrons and neutrons
8
Which macromolecule is involved in nearly
EVERY FUNCTION
in the human body?
lipid
nucleotide
carbohydrate
protein
9
A molecule of water (H
2
O) has which bonds?
1 ionic bond
2 polar covalent bonds
2 ionic bonds
1 covalent bond
10
When added to water, how does an acid affect the pH and H
+
concentration?
Both pH and H+ decrease.
The pH increases while the H+ decreases.
Both pH and H+ increase.
The pH decreases while the H+ increases.
11
Glycogen, used to store energy in the liver and muscle, is which type of molecule?
lipid
nucleic acid
carbohydrate
protein
12
Monosaccharides are monomers of _____ & amino acids are monomers of _______.
Carbohydrates & proteins
carbohydrates & lipids
Lipids & nucleic acids
Nucleic acids & proteins
13
An enzyme is which type of macromolecule?
Nucleic acid
Protein
Carbohydrate
Lipid
14
Electrons in water are more strongly attracted to hydrogen nuclei creating unequal sharing.
I don't know
True
False
15
Which substance would most likely be studied during a college
organic
chemistry course?
sodium chloride (table salt)
water
glucose
oxygen
16
All of the following statements about the diagram are correct EXCEPT
the grasshopper is an herbivore
Only two trophic levels are depicted.
The mouse and grasshopper are at the same trophic level.
fox and owl are most affected by biomagnification
17
Which macromolecule is an organism's FIRST choice for energy?
lipid (fats)
carbohydrate
nucleic acids
protein
18
Which of the following is a function of fats?
transport substances into cells
stores energy
serves as chemical messengers
stores and transmits genetic information
19
A covalent bond is formed as the result of ___.
transferring protons
sharing electrons
sharing protons
transferring electrons
20
The total number of atoms in a molecule of sucrose, C
12
H
22
O
11
, is ____.
45
3
24
35
21
Pure water will have a pH of 14.0
None, of these explanations are correct
False, water is neutral at 7.0
True, water is a base
False, water is an acid with a pH of 1.0
22
Biodiversity is important to human society because it
All of the above are correct
is a natural resource.
provides food and goods.
provides medicines.
23
Nonnative species that are transported to a new habitat.
Native species
Prey species
Keystone species
Introduced species
24
George spills water on himself and it soaks into his clothing. This is an example of
cohesion
adhesion
hydrogen bonding
neutralization
25
A substance with a pH of 10 is called ___.
neutral
an acid
a base
both an acid and a base
26
Keeping blood pH levels between 7.35 and 7.45 is an example of
macromolecules
neutralization
homeostasis
enzymes
27
Glucose indicator turns glucose ___________ & starch indicator turns starches ___________.
orange & blue/black
blue & black
black & red
orange & yellow
28
An organism's genetic information is stored in which type of macromolecule?
carbohydrate
protein
nucleic acid
lipids (fats)
29
Gelatin contains protein so it will turn orange in the presence of protein indicator.
False, it will turn blue
True, it will turn orange
False, it will turn lavendar
False, it will turn red
30
Which best explains why there are seldom more than five trophic levels in a food chain?
Trophic levels above five contain too many individuals.
Most carnivores function at more than one trophic level.
Top carnivores are too few in number to prey effectively.
Energy is lost from each trophic level.
31
Demography is the scientific study of
human populations.
modernized countries.
economicdevelopment.
parasitism and disease.
32
What is likely to be true of a population with an age structure that is pyramid shaped?
It has potential for rapid growth in the future.
It is characteristic of zero population growth.
It is expected to grow slowly in the future.
It is expected to decline in population size over time.
33
Which is not a function of protein?
Transport of materials
Storage of genetic information
Communication
Structure and movement
34
Which of the following best describes the properties of water?
it is a good solvent
it is a polar molecule
all of these are properties of water
it is attracted to itself, cohesion
35
Which property is responsible for the fact that water and oil do NOT mix?
density
phase
mass
polarity
36
Which of the following is true about water?
Water is polar with hydrogen having a slight negative charge
Polar and ionic substances dissolve in water
Surface tension allows ice to float on water
Adhesion is when water is attracted to water
37
A single carbon atom can form exactly ___ chemical bonds.
1
2
4
3
38
The organic and inorganic materials in all the organisms will return to the environment due to
primary consumers
producers
secondary consumers
decomposers
39
When an enzyme is denatured by temperature or pH changes, which of the following happens?
The enzyme changes shape
The enzyme does not function as well
The enzyme is destroyed
Any of the above could occur
40
Which statement is true?
lipids are generally soluble in water
nucleotides consist of fats, oils,steroids and waxes
Proteins are polymers of amino acids
Monosaccharides are formed from polysaccharides
