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WorksheetsBiology Semester 1 Exam Review
Total questions: 91
Worksheet time: 58mins
Name
Class
Date
1.
The three particles that make up atoms are
a)
protons, neutrons, and isotopes.
b)
neutrons, isotopes, and electrons.
c)
positives, negatives, and neutrals.
d)
protons, neutrons, and electrons.
2.
What are found in the space surrounding the nucleus of an atom?
a)
protons
b)
electrons
c)
neutrons
d)
ions
3.
Which of the following makes up a molecule of water?
a)
one atom of hydrogen one atom of oxygen
b)
one atom of sodium and one atom of chlorine
c)
one atom of hydrogen and two atoms of oxygen
d)
two atoms of hydrogen and one atom of oxygen
4.
A covalent bond is formed as the result of
a)
transferring electrons
b)
sharing electrons
c)
transferring protons
d)
sharing protons
5.
Which property of water causes the curved surface shown in the figure with the graduated cylinder with curved water at the top?
a)
pH
b)
cohesion
c)
adhesion
d)
heat capacity
6.
Water molecules are polar, with the
a)
oxygen side being slightly positive and the hydrogen side being slightly negative
b)
oxygen and hydrogen sides being slightly positive
c)
oxygen and hydrogen sides being slightly negative.
d)
oxygen side being slightly negative and the hydrogen side being slightly positive
7.
In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is
a)
slightly negative
b)
very negative
c)
slighly positive
d)
very positive
8.
A solution is a
a)
combination of isotopes
b)
chemical reaction
c)
mixture in which the substances are evenly spread out
d)
mixture in which undissolved substances do not settle out
9.
If you stir salt into boiling water, you produce a
a)
mixture called a suspension
b)
mixture called a solution
c)
solution and suspension
d)
mixture only
10.
When salt is dissolved in water, water is the
a)
reactant
b)
solution
c)
solute
d)
solvent
11.
While preparing a cell culture, a scientist places a colony of bacteria into distilled water and stirs it up. This mixture of water and living cells would best be called
a)
solution
b)
suspension
c)
buffer
d)
adhesion
12.
A map of eastern North America, showing the pH of rainfall in the various states, indicates that the pH of rain in New York State varies from 4.22 to 4.40. According to these figures, the most acidic rainfall in New York State has a pH of
a)
4.22
b)
4.3
c)
4.35
d)
4.4
13.
A substance with a pH of 6 is called
a)
acid
b)
base
c)
water
d)
suspension
14.
Solutions that have more OH� than H+ ions are
a)
reactants
b)
acids
c)
bases
d)
enzymes
15.
Why is carbon so special compared to other elements?
a)
Carbon atoms can bond to one another and form a lot of different structures.
b)
Carbon atoms have four valence electrons and can form quadruple bonds.
c)
Only carbon atoms can form covalent bonds with oxygen and hydrogen
d)
Only carbon atoms can be dissolved in water solutions and suspensions
16.
Amino acid is to protein as
a)
fat is to lipid
b)
DNA is to RNA
c)
sugar is to fat
d)
simple sugar is to starch
17.
Which of the following is NOT a monomer?
a)
glucose molecule
b)
amino acid
c)
nucleotide
d)
protein
18.
Which of the following is NOT a function of proteins?
a)
store and transmit genetic information
b)
help to fight disease
c)
control the rate of reactions
d)
move substances into or out of cells
19.
Which statement is true about macromolecules?
a)
simple sugars are made of polysacchardes
b)
glycerol is made of fatty acids
c)
proteins are made of amino acids
d)
nucleotides are made of nucleic acids
20.
When hydrogen and oxygen combine to form water, water is
a)
product
b)
reactant
c)
enzyme
d)
catalyst
21.
Identify the reactant(s) in the chemical reaction, CO2 + H2O � H2CO3.
a)
CO2, H2O, H2O2
b)
CO2 and H2O
c)
H2CO3
d)
CO2
22.
What is the process that changes one set of chemicals into another set of chemicals?
a)
cohesion
b)
hydrogen bonding
c)
chemical reaction
d)
dissolving
23.
The energy needed to get a reaction started is the
a)
adhension energy
b)
activation energy
c)
cohesion energy
d)
chemical energy
24.
If a reaction in one direction releases energy, the reaction in the opposite direction
a)
also releases energy
b)
absorbs energy
c)
destroys energy
d)
cannot occur
25.
Which of the following diagrams correctly shows the reaction pathway of a reaction that absorbs energy?
a)
reactants, high curve, low products
b)
reactants high, low dip, little higher products
c)
reactants, low dip, really high products
d)
low reactants, high curve, lower products
26.
Which of the following statements is true about catalysts?
a)
catalyst slow down the rate of chemical reactions
b)
all catalysts are enzymes
c)
catalysts are used up during chemical reactions
d)
catalysts lower the activation energy of chemical reactions
27.
A substance that speeds up the rate of a chemical reaction is called
a)
catalyst
b)
lipid
c)
molecule
d)
element
28.
Enzymes affect the reactions in living cells by changing the
a)
products of the reaction
b)
speed of the reaction
c)
temperature of the reaction
d)
pH of the reaction
29.
Why are water molecules polar?
a)
it has no charges
b)
the oxygen end is slightly negative and the hydrogens are slightly positive, creating charges at each end
c)
the hydrogens areslightly negative and the oxygen is slightly positive, creating charges at each end
d)
it contains one hydrogen with a lot of electron and an oxygen with none
30.
Use the terms solvent and solute to describe how to prepare a salt solution.
a)
solvent=salt, solute=water
b)
solvent=salt, solute=sugar
c)
solvent=water, solute=salt
d)
solvent=sugar, solute=salt
31.
What is the strongest acid listed in Figure 2�5?
a)
hydrochloric acid
b)
sulfric acid
c)
tomatoes
d)
rainwater
32.
What is the pH of the weakest acid listed in Figure 2�5?
a)
1
b)
1.2
c)
4.2
d)
6.2
33.
What is the pH of the strongest base listed in Figure 2�5?
a)
7
b)
8.5
c)
11.1
d)
13
34.
Is it sometimes safe to eat things categorized as acids? Use the information in Figure 2-5 to reference.
a)
no, you will die
b)
yes, tomatoes are acidic
c)
yes, even pure water is acidic
d)
no, it will eat away at your internal organs
35.
A possible explanation to a problem that has not yet been tested.
a)
data
b)
theory
c)
hypothesis
d)
fact
36.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
37.
There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?
a)
quantitative
b)
qualitative
38.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
39.
There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?
a)
qualitative
b)
quantitative
40.
A series of steps used by scientists to solve a problem or answer a question.
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
41.
In a controlled experiment, how many independent variables can be worked with at a time?
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
42.
Two types of data scientists collect are...
a)
hypothesis and theory
b)
qualitative and quantitative
c)
myths and fables
d)
metric and standard measurements
43.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
44.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
a)
height of the ramp
b)
distance traveled by the ball
c)
mass of the ball
d)
weight of the ball
45.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
46.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
47.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
d)
Color of the plant's leaves
48.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.
a)
experimental group
b)
control group
c)
data
d)
variables
49.
This organelle is a rigid outer layer that protects plant cells.
a)
Cell Membrane
b)
Cell Wall
c)
Nucleus
d)
Chloroplast
50.
This organelle controls what goes in and out of plant and animal cells.
a)
Cell Wall
b)
Cell Membrane
c)
Cytoplasm
d)
Cytoplasm
51.
The _____________ stores food, water, wastes, and other materials in both plant and animal cells.
a)
Vacuole
b)
Mitochondria
c)
Ribosomes
d)
Chromatin
52.
An organelle that captures energy from the sunlight in order to use it to produce food in plant cells is ______________.
a)
Chromatin
b)
Chloroplast
c)
Cytoplasm
d)
Cell Membrane
53.
________________ create proteins for plant and animal cells.
a)
Ribosomes
b)
Endoplasmic Reticulum
c)
Golgi Bodies
d)
Lysosomes
54.
The organelles that clean plant and animal cells by using chemicals to break down food and worn out cell parts are ______________.
a)
Lysosomes
b)
Mitochondria
c)
Nucleolus
d)
Cell Wall
55.
This organelle is like a train station in a city. It can be found in both plant and animal cells. This organelle has passageways within the cell that carry proteins and other materials from one part of the cell to another.
a)
Endoplasmic Reticulum
b)
ET
c)
Golgi Bodies
d)
Nucleolus
56.
The _____________ holds the DNA, and controls the functions of plant and animal cells.
a)
Nucleus
b)
Nuclear Membrane
c)
Nucleolus
d)
New Moon
57.
This can be found in the nucleus, and are tiny strands that contain the instructions for directing the cell's functions.
a)
DNA/Chromatin
b)
Chloroplasts
c)
Golgi Bodies
d)
ER
58.
The _________ ____________ can be found in plant and animal cells, and receive proteins and materials from the ER, packages them, and distributes them.
a)
ER
b)
Golgi Bodies
c)
Cell Membrane
59.
The _____________ is like JELL-O, and is a gel-like fluid that fills plant and animal cells, and is where the organelles are found.
a)
Cytoplasm
b)
Cell Membrane
c)
Cell Wall
d)
JELL-O
60.
ONLY found in plant cells
a)
nucleus
b)
cell wall
c)
cell membrane
d)
lysosome
61.
ONLY found in a plant cell
a)
lysosome
b)
cell membrane
c)
chloroplast
d)
nucleus
62.
cells that contain a true nucleus
a)
prokaryotes
b)
eukaryotes
c)
carbohydrate
d)
plant cells
63.
What is the function of a selectively permeable membrane?
a)
provides alternative to phospholipid bilayer
b)
prevents transport proteins from harming cell
c)
controls what enters and leaves cell
d)
blocks all water from entering cell
64.
Each of the following is a main idea of the cell theory except:
a)
all organisms are composed of 1 or more cells
b)
cells are the basic unit of life
c)
all cells are similar in function and structure
d)
all cells come from preexisting cells
65.
The ___ is the basic unit of structure and function of organisms
a)
atom
b)
cell
c)
matter
d)
all other answers are correct
66.
Which statement is a part of the cell theory?
a)
all cells come from preexisting cells
b)
bacteria are prokaryotic cells
c)
eukaryotic cells are complex
d)
humans are multicellular
67.
Which organelle is missing in prokaryotic cells?
a)
nucleus
b)
DNA
c)
ribosomes
d)
plasma membrane
68.
Who looked at cork and named the cell?
a)
Robert Hooke
b)
Van Leeuwenhoek
c)
Robert Brown
d)
Francesco Redi
69.
The Cell Theory states...
a)
atoms create all matter
b)
living things evolve
c)
the cell is the backbone of all matter
d)
cells are the basic unit of structure and organization of organisms
70.
Compared to the eukaryotic cell, prokaryotic cells are
a)
more complex
b)
less complex
c)
full of membrane-bound organelles
d)
very large
71.
Which invention from the 17th century allowed for the development of modern cell theory?
a)
x-rays
b)
computers
c)
the light microscope
d)
the scanning electron microscope
72.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
73.
The element _______is found in all of the organic compounds.
a)
Iron
b)
Nitrogen
c)
Carbon
d)
Oxygen
74.
_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
75.
DNA and RNA are examples of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
76.
Nucleotides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
77.
Monosaccharides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
78.
Waxes, oils and fats are examples of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
79.
Glycerol and fatty acids are the monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
80.
The organic compounds that have many structural purposes and are used in many processes within the
cell are called ____________________.
cell are called ____________________.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
81.
What is the function of nucleic acids?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
82.
What type of macromolecule are enzymes?
a)
Protein
b)
Carbohydrate
c)
Lipid
d)
Nucleic Acid
83.
Which of the following organic compounds is the main source of energy for living things?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
84.
Carbohydrates are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
85.
Lipids are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
86.
Proteins are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
87.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
88.
Used for short term (quick) energy.
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
89.
Provides long term energy and insulation,
a)
lipids
b)
carbohydrates
c)
nucleic acids
d)
proteins
90.
Building blocks of the body, hair , muscles etc.
a)
protein
b)
nucleic acid
c)
lipids
d)
carbohydrates
91.
If the pH of stomach acid and of oven cleaner were measured,
a)
both would be below 7.
b)
both would be above 7.
c)
the pH of stomach acid would be above 7, but the pH of oven cleaner would be below 7.
d)
the pH of stomach acid would be below 7, but the pH of oven cleaner would be above 7.
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