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Biology Test 1-Macromolecules, water, chemistry of life Flashcards | StudBud
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Biology Test 1-Macromolecules, water, chemistry of life
Biology Test 1-Macromolecules, water, chemistry of life
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The 6 properties of water and the scientific method review and macromolecules.
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1
Which property of water is the reason why frozen water floats?
Excellent Solvent
Ice Density
High Heat Capacity
Cohesion
2
When two simple monomers of sugar are combined you get a
monosaccharide
disaccharide
polysaccharide
3
What type of bond holds the Hydrogen and Oxygen atoms together within a water molecule?
Covalent bond
Ionic Bond
Polar Bond
Hydrogen Bond
4
What are proteins made of?
phospholipids
chicken
nucleotides
amino acids
5
Which of the following is a function of a nucleic acid?
Provides Energy
Transmit Genetic Material
Stores Energy
Provide Structural Support
6
Enzymes are an example of which marcomolecule?
lipid
carbohydrate
protein
nucleic acid
7
What does an enzyme do to a chemical reaction?
increases the activation energy
speeds up the reaction rate
lowers the activation energy
slows down the reaction rate
8
Oil won't dissolve in water because it is:
nonpolar
polar
hydrophobic
hydrophilic
9
In “King Henry Died Unusually Drinking Chocolate Milk”, what does the D in Died represent?
Deci
Deka
denti
Diga
10
What type of bonds connect water molecules to other water molecules?
Hydrogen Bonds
Ionic Bonds
Water bonds
Covalent bonds
11
Which property of water allows water molecules to dissolve numerous substances?
High Heat Capacity
Hydrophobic substances
Capillary Action
Universal Solvent
12
Which of the following is an example of a carbohydrate?
Grilled Chicken
DNA
Glucose
Oil
13
True or False: Pseudoscience is based on facts.
True
False
14
What are the reactants in a chemical reaction?
the starting material
a catalyst
what you get out of a reaction
the end product
15
Which two properties of water work together to achieve capillary action?
Cohesion and Surface Tension
High Heat Capacity and Excellent Solvent
Adhesion and Density
Cohesion and Adhesion
16
A scientific _____ provides an explanation for why natural phenomenon occur.
experiment
theory
method
law
17
Which of the following is not a function of a Carbohydrate?
Transmit Genetic Material
Stores Energy
Provide Structural Support
Provides Energy
18
The monomer of a carbohydrate is called a:
disaccharide
monosaccharide
complex sugar
polysaccharide
19
When you see the ending "-ose" it means
macromolecule
sugar
milk
enzyme
20
Water droplets sticking to wax paper shows:
capillary action
high heat capacity
adhesion
cohesion
21
In an experiment, the one variable that is changed is called the:
control group
dependent variable
independent variable
constant
22
What does the ending "-ase" indicate?
Enzyme
Substrate
sugar
carbohydrate
23
What is the generalized structure of a carbohydrate?
(CH2O)n
(CH4)n
(CCN)n
(C3H7O)n
24
Water being moved through the roots and stem of a plant is an example of:
adhesion
surface tension
capillary action
cohesion
25
Ice is ____ dense than water.
less
equally
more
26
Which property allows water to absorb a lot of heat without changing phase?
High Heat Capacity
Low Heat Capacity
Capillary Action
Cohesion
27
What property of water allows water molecules to stick to other water molecules?
Capillary Action
Cohesion
Surface Tension
Adhesion
28
What is a substrate made of?
Enzymes
Water
Reactants
Products
29
A paper clip floating on top of water shows which property of water?
Surface tension
Cohesion
adhesion
ice density
30
The group that the scientist changes nothing in and is used for comparison is called__________.
constants
control group
independent group
constant group
31
What does it mean if an enzyme becomes denatured?
the temperature is too low
the enzyme changes shape
the enzyme has been destroyed
the enzyme slows down
32
Water droplets coming together to form bigger water droplets shows:
cohesion
universal solvent
adhesion
capillary action
33
What is the charge of the Oxygen in a water molecule?
neutral
positive
there is no charge
negative
34
What is the most important element for the diversity of life?
Oxygen
Carbon
Sulfur
Hydrogen
35
What happens to an enzyme after it releases the products?
it is denatured
it explodes
it is destroyed
it is reused
36
Water molecules are ______.
Polar
Non-polar
37
Which of the following factors doesn't affect enzyme activity?
All of these affect enzyme activity
pH
concentration of the enzyme
temperature
38
What are nucleic acids composed of?
amino acids
nucleotides
chicken
phospholipids
39
True or False: Cohesion is the attraction between two different molecules.
False
True
40
The boiling point of water is ____.
100° F
high
212° F
low
41
How many different amino acids are there?
1
too many to count
11
20
42
What charge do the Hydrogen atoms have in a water molecule?
neutral
negative
there is no charge
positive
43
Water will only dissolve ______ substances.
hydrophobic
hydrophilic
polar
Non polar
44
In an experiment, the one variable that is measured is called the:
dependent variable
independent variable
constant
control group
45
How do we know if a molecule is polar based on its structure?
it dissolves in water
water
it is found in the north pole
it has a positive end and a negative end
46
What is the property of water that allows water molecules to stick to different surfaces?
Excellent Solvent
Adhesion
Capillary Action
Cohesion
47
Hydrogen bonds are ____ bonds.
weak
Strong
48
Where is the active site located?
On the substrate
On the lipids
On the products
On the enzyme
49
What Macromolecule would you find in sugar?
protein
carbohydrate
nucleic acids
lipid
50
What does hydrophobic mean?
water loving
Loving
Water fearing
Afraid
