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Unit 1 Biology Basics
Unit 1 Biology Basics
32 terms
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Intro topics for Biology: #ScientificMethod and #Macromolecules #PropertiesofWater
Flashcards
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Answers
1
While walking Tim noticed the tree fell over. If he assumes a lumberjack cut it down, this is
a hypothesis.
an observation.
an inference.
a prediction.
2
A nucleotide is made up of
sugars, phosphates and a base.
glycerol and fatty acids.
nucleic tides of genes.
glucose molecules.
3
What is cohesion?
The ability of water to stick to other substances
The fact that water has a positive and negative side.
The ability of water to stick to other water molecules
The ability of water to defy gravity.
4
Fatty acids and glycerol are the monomers of
nucleic acids.
proteins.
carbohydrates.
lipids.
5
Kids want to know what type of shoe makes them run fastest. What's the independent variable?
type of shoe
science
kids
running speed
6
Sugars are the monomers of
carbohydrates.
lipids.
nucleic acids.
proteins.
7
Kids decide to see what type of shoe makes them run the fastest. What's the dependent variable?
their grandma
Kids
the type of shoe
running speed
8
What is the function of lipids?
long- term energy storage
genetic material
muscle contraction, transport and enzymes.
quick energy to burn
9
Most enzymes end in......?
-ome
-itin
-ase
-ose
10
Joey heard a loud bang. He thought it was his brother trying to cook. Joey hearing the noise is
a hypothesis.
an inference.
an observation.
a prediction.
11
What is a qualitative observation about this photo?
There are 4 goats.
There are 3 goats off the bridge.
There is a brown goat.
There is 1 goat on the bridge.
12
In a hypothesis the ___ variable is changed, and the ___ variable what's measured in response.
independent; control
control; dependent
independent; dependent
dependent; independent
13
In a laboratory experiment, what is the first step performed out of the following choices?
publish results
collect data from the experiment
analyze data
form hypothesis
14
Plants have same light & water, but the soil type differs to see growth differences. Constant?
color of light
soil types
amount of growth
light & water
15
What is the function of nucleic acids?
long- term energy storage
muscle contraction, transport and enzymes.
quick energy to burn
genetic material
16
What suffix is a clue that describes a sugar?
-mono
-ed
-poly
-ose
17
Enzymes are made up of......
lipids
nucleotides
proteins
carbohydrates
18
Scientists test a relationship between a “cause” and an “effect.” "Effect” is also known as the
dependent variable.
constant.
independent variable.
control group.
19
If a reagent (iodine, buirets, benedicts...) mixed with a solution doesn't change color, it's a
none of the above.
favorable test.
negative test.
positive test.
20
Which is the correct order that the body will digest first to last?
carbohydrates, lipids, proteins
proteins, carbohydrates, lipids
lipids, carbohydrates, proteins
lipids, proteins, carbohydrates
21
specific region of an enzyme where a substrate binds
active site
substrate
enzyme
protein
22
Nucleotides are the monomers of
proteins.
lipids.
carbohydrates.
nucleic acids.
23
What is the function of carbohydrates?
genetic material
muscle contraction, transport and enzymes.
long- term energy storage
quick energy to burn
24
At what pH, does this enzyme denature?
10
8
5 and 10
5
25
What can denature an enzyme?
high temperatures
water
pH changes
electricity
26
Benedict's solution is used to indicate
lipid.
protein.
sugar.
starch.
27
Amino acids are the monomer of
lipids.
carbohydrates.
nucleic acids.
proteins.
28
What is adhesion?
The ability of water to defy gravity.
The ability of water to stick to other substances.
The fact that water has a positive and negative charge.
The ability of water to stick to other water molecules.
29
What is a quantitative observation about this photo?
There are 4 goats.
There is a brown goat.
There are white goats
There is green grass
30
What are enzymes?
They slow down energy production
They speed up chemical reactions
Enzymes destroy disease
They alter heart rate
31
What is the function of proteins?
genetic material
muscle contraction, transport and enzymes.
quick energy to burn
long- term energy storage
32
Four main types of macromolecules are carbohydrates, lipids, nucleic acids, and
starches.
proteins.
fatty acids.
monosaccharides.
