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Unit 1 Biology Basics
Unit 1 Biology Basics
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Answers
1
Joe needs to measure 25mL of oil. Which tool is the most precise?
beaker
test tube
graduated cylinder
flask
2
Which biomolecule would least likely be affected by the order of its molecule units.
carbohydrates
DNA
RNA
3
Both lipids and carbohydrates are important in animal cells because they both
provide insulation
store energy
contain nitrogen
form cell walls
4
The sub units of proteins are
polysaccharide
carbohyrates
nucleic acids
amino acids
5
Composed of glycerol and fatty acids and it functions as a hormone. This molecule is_.
protein
carbohydrate
lipid
nucleic acid
6
When you write a conclusion, what do you refer back to?
your textbook
the materials
procedure
hypothesis
7
Carbohydrates store energy. Which other biomolecule also functions to store energy?
protein
carbohydrate
nucleic acid
lipid
8
Enzymes are a type of biomolecule. They are made of carbon, hydrogen, oxygen, and nitrogen.
protein
sugar
starch
fat
9
All of the following except would be useful for transferring liquid
graduated cylinder
petri dish
funnel
beaker
10
Which biomoclue is a part of animal tissue that functions as insulation?
proteins
lipids
nucleic acids
carbohydrates
11
What are the items in an experiment that do not change. They remain the same.
independent variable
control
dependent variable
constants
12
Animals store most of their energy as ___ because ___
protein; it is compact source of energy
carbohydrates; they store twice as much energy per gram
fat; they store twice as much energy per gram
glucose; its easy to break down
13
What will the body digest first?
enzymes
proteins
carboydrates
lipids
14
What variable is known as the "effect" of what eh scientist measures?
control
dependent variable
independent variable
constant
15
Plants store energy as starch. What monomer makes up starch?
amino acids
monosaccharides
nucleotides
fatty acids
16
Both animal fats and plant oils are made up of glycerol and __
fatty acids
polar molecules
amino acids
saturated fats
17
Which describes the function of nucleic acids?
increases the rate of chemical reactions
stimulates metabolism in all body cells
activates the secretion of the body's hormones
Stores genetic information and helps make proteins
18
In any experiment, what is the first step?
analyze data
publish results
form a hypothesis
collect data
19
The sidewalk is wet. Perhaps it rained. The person is making a(n)...
inference
prediction
hypothesis
observation
20
Which of the following is a function of a protein?
regulates enzymes
insulation
forms the cell wall
gene expression
21
Which of following is a function of carbohydrates?
regulates enzymes
gene expression
insulation
forms the cell wall
22
The four main types of biomolecules are carbohydrates, lipids, nucleic acids, and
polar molecules
proteins
amino acids
fatty acids
23
Which of these is never used for making measurements?
beaker
graduated cylinder
flask
test tube
24
Which category of molecules include sugars and starches.
phospholipids
fatty acids
carbohydrates
proteins