WorksheetsUnit 2 and more Exam
Total questions: 49
Worksheet time: 25mins
Name
Class
Date
1.
Enzymes are made from which major biomolecule?
a)
proteins
b)
carbohydrates
c)
Lipids
d)
nucleic acids
2.
What is the major function of all enzymes?
a)
to build or breakdown substrates
b)
to just build-up substrates
c)
to just break down substrates
d)
to make products
3.
Which of the following molecules is considered an enzyme
a)
ligase
b)
lactose
c)
sucrose
d)
fructose
4.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6
b)
The enzyme's activity increases as the pH increases from 5 to 9
c)
The optimum pH of the enzyme is 5.8
d)
The enzymes activity is greater around 8.2 pH
5.
Based on the graph, at what temperature does the enzyme work best at?
a)
40
b)
60
c)
20
d)
30
6.
Enzymes speed up reactions within the human body by...
a)
Forming new cells
b)
Lowering the activation energy
c)
Presenting new genetic information
d)
Providing quick energy for cells
7.
Which of the following best describes the role of enzymes in living organisms?
a)
Enzymes provide energy for cells.
b)
Enzymes speed up the rate of chemical reactions in cells.
c)
Enzymes are structural components of cell membranes.
d)
Enzymes provide insulation for the body.
8.
Oils, fats and waxes are forms of which of the following molecules?
a)
Lipids
b)
Carbohydrates
c)
Nucleic Acids
d)
Proteins
9.
Which of the following molecules is NOT a monomer?
a)
amino acids
b)
lipids
c)
carbohydrates
d)
nucleotides
10.
Proteins are polymers formed from...
a)
Amino acids
b)
Nucleic Acids
c)
Monosacharrides
d)
Fatty Acids
11.
A chain of many smaller subunits bond to form a larger molecule. What is the larger molecule called?
a)
Monomer
b)
Polymer
c)
Micromolecule
d)
Compound
12.
Which molecule is the best source of short term energy
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
13.
What is the monomer of a nucleic acid?
a)
Nucleotide
b)
DNA
c)
RNA
d)
Nitrogenous Base
14.
Which type of macromolecule stores, transmits, and expresses genetic information?
a)
Nucleic acids
b)
Lipids
c)
Proteins
d)
Carbohydrates
15.
Bacteria are a good example of ___________ organisms
a)
multicellular
b)
unicellular
c)
eukaryotes
d)
complex
16.
Eating breakfast to start the day is a good example of which characteristic of life?
a)
responding to stimuli
b)
homeostasis
c)
obtain/use energy
d)
reproduction
17.
The process which organisms keep their internal environment constant or equal is called __________________
a)
homeostasis
b)
anabolism
c)
metabolism
d)
stimuli
18.
An organism's ability to adjust to changing weather is a good example of which characteristic of life?
a)
all have cells
b)
obtain energy
c)
respond to the environment
d)
reproduction
19.
Basic unit of life
a)
cells
b)
metabolism
c)
reproducing
d)
homeostasis
20.
Which characteristic of life would the process of puberty fall under for human organisms?
a)
all have cells
b)
must grow and develop
c)
respond to their environment
d)
obtain/use energy
21.
You want to do an experiment and test which type of laundry soap works best getting out stains ( tide, gain or cheer). If you were to set up this experiment what variable would the types of soap be?
a)
constant
b)
independant
c)
dependent
d)
control
22.
In an experiment the constant is define as...
a)
what stays the same
b)
The changing factor
c)
the one the scientists manipulates
23.
Use the graph below to answer the following question. What is the dependent variable in the experiment whose results are shown in the graph?
a)
number of flies produce
b)
amount of days it took
c)
the size of the container flies were kept in
24.
On a line graph the independent variable is plotted on the ______ axis.
a)
X
b)
Y
c)
Z
d)
NONE
25.
On a line graph where would the dependent variable go?
a)
On the X axis
b)
On the Y axis
c)
On the top of the graph
d)
none
e)
26.
You joined the Garden club and you decided to conduct an experiment to determine how much of the school garden area is being used to grow each different type of vegetables (lettuce, tomatoes, green beans, and beets). What type of graph would be appropriate to show your results
a)
line graph
b)
bar graph
c)
pie/circle graph
d)
scatter plot graph
27.
Which of the following organisms would breathe in the gas produced from cellular respiration?
a)
Dandelion (type of plant)
b)
DNA
c)
Cat
d)
horse
28.
Which of the following will correctly complete the cellular respiration equation
a)
C6H12O6 AND CO2
b)
C6H1206 AND 602
c)
6C6H12O6 AND CO2
d)
6H20 AND 6CO2
29.
What is the principal compound that stores energy for living organisms?
a)
ATP
b)
DNA
c)
H20 (water)
d)
CO2 (carbon dioxide)
30.
In order to perform exercise______________ is needed
a)
more ATP molecules
b)
less ATP molecules
c)
The same ATP molecules
d)
No ATP molecules
31.
When ATP is broken down in a chemical reaction, what is released?
a)
Energy
b)
Glucose
c)
Oxygen
d)
Carbon Dioxide
32.
Which statement best describes the relationship between photosynthesis and cellular respiration?
a)
The reactants of photosynthesis are used as products in respiration
b)
The reactants of photosynthesis are used as reactants in respiration
c)
There are not reactants in photosynthesis
d)
The reactants of photosynthesis are not used in respiration
33.
What is the principal pigment in green plants?
a)
Chlorophyll
b)
Mitochondria
c)
Carotene
d)
Carbohydrate
34.
When ADP is converted to ATP _____________________.
a)
A phosphate is added to ADP
b)
A ribose is added to ADP
c)
A phosphate is removed from ATP
d)
An Adenosine is added to ATP
35.
Where in the cell does photosynthesis occur?
a)
In the chloroplast
b)
On the cell wall
c)
In the mitochondria
d)
In the cytoplasm
36.
Where in the cell does cellular respiration occur?
a)
In the mitochondria
b)
In the chloroplast
c)
On the cell wall
d)
In the cytoplasm
37.
What cell structure produces ATP?
a)
In the mitochondria
b)
In the chloroplast
c)
On the cell wall
d)
In the cytoplasm
38.
Which molecule will provide the most immediate source of energy for cell organelles?
a)
ATP
b)
CO2
c)
H20
d)
O2
39.
Which of the following is a product of cellular respiration?
a)
Carbon Dioxide
b)
Oxygen
c)
Hydrogen
d)
Light energy
40.
Based on your knowledge of photosynthesis and cellular respiration. Which of the following is represented by Letter B?
a)
Glucose and oxygen which is the product of photosynthesis and the reactant of respiration
b)
Glucose and carbon dioxide is the product of photosynthesis and the reactant of respiration
c)
Carbon dioxide and water which is the product of photosynthesis and the reactant of respiration
d)
Oxygen and energy which is the product of photosynthesis and the reactant of respiration
41.
Letter D is a representation of which cellular process?
a)
Photosynthesis
b)
Respiration
c)
Diffusion
d)
Osmosis
42.
Identify the correct chemical reaction for photosynthesis.
a)
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
b)
C6H12O6 + 6O2 → 6CO2 + 6H2O + light energy
c)
Light energy+ C6H12O6 → 6CO2 + 6H2O
d)
6CO2 + 6H2O→ 6CO2 + 6H2O + light energy
43.
Which number represents the products of photosynthesis?
a)
3
b)
1
c)
2
d)
4
44.
Photosynthesis is to chloroplast as cellular respiration is to?
a)
mitochondria
b)
chloroplast
c)
cytoplasm
d)
nuclei
45.
Which of the following would you infer breathes in the gas that is produced by photosynthesis?
a)
cactus
b)
cat
c)
flowers
d)
grass
46.
In addition to light, the reactants of photosynthesis are?
a)
water and glucose
b)
water and carbon dioxide
c)
carbon dioxide and oxygen
d)
water and oxygen
47.
Which factor can affect the rate at which an enzyme functions?
a)
Color
b)
Shape
c)
Temperature
d)
Size
48.
What is the main function of carbohydrates in living organisms?
a)
Provide short-term energy
b)
Store genetic information
c)
Build cell membranes
d)
Speed up chemical reactions
49.
In a scientific experiment, what is the dependent variable?
a)
The variable that is measured
b)
The variable that is ignored
c)
The variable that is kept constant
d)
The variable that is manipulated
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