Font size
S
M
L
XL
WorksheetsBiology Exam
Total questions: 95
Worksheet time: 48mins
Name
Class
Date
1.
Group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable.
a)
Control Group
b)
Dependent Group
c)
Independent Group
d)
IDK
2.
Variable that is observed and that changed in response to the other variable.
a)
Independent
b)
Dependent
c)
Control
d)
Manipulated
3.
Possible explanation for a set of observations or possible answer to a scientific question.
a)
Variable
b)
Theory
c)
Inference
d)
Hypothesis
4.
The combination of chemical reactions through which an organism builds up or breaks down materials.
a)
Science
b)
Metabolism
c)
Stimulus
d)
Observation
5.
Process of noticing and describing events or processes in a careful, orderly way.
a)
Inference
b)
Data
c)
Hypothesis
d)
Observation
6.
Factor in a controlled experiment that is deliberately changed; also called the manipulated variable.
a)
dependent variable
b)
independent variable
c)
control
d)
responding variable
7.
The study of life.
a)
Chemistry
b)
Physics
c)
Botany
d)
Biology
8.
Signal to which an organism responds.
a)
Stimulus
b)
Inference
c)
Bias
d)
Metabolism
9.
Process involving a single parent that results in offspring that are genetically identical to the parent.
a)
Sexual Reproduction
b)
Asexual Reproduction
c)
Meiosis
d)
Fertilization
10.
The work of scientists usually begins with
a)
testing a hypothesis.
b)
careful observations.
c)
creating experiments.
d)
drawing conclusions.
11.
A student sees a bee on a flower. The student wonders how the bee finds flowers. The student is displaying the scientific attitude of
a)
creativity
b)
open-mindedness
c)
skepticism
d)
curiosity
12.
The basic unit of length in the metric system is
a)
meter
b)
gram
c)
liter
d)
yard
13.
What does a reviewer do during peer-review?
a)
focus on mistakes in spelling
b)
change data to support results
c)
check for mistakes and bias
d)
repeat the experiments in the article.
14.
During a controlled experiment, a scientists isolates and tests
a)
a conclusion
b)
a single variable
c)
multiple variables
d)
a control group
15.
Who reviews articles for peer-reviewed journals?
a)
friends of the scientists who wrote the article.
b)
anonymous and independent experts
c)
the scientists who did the experiment
d)
people who paid for the experiments
16.
Biologists who work in the fields of genomics and molecular biology study
a)
the biosphere
b)
DNA
c)
trees
d)
diseases
17.
Chemical bond formed when one or more electrons are transferred from one atom to another.
a)
Peptide
b)
Ionic
c)
Covalent
d)
Hydrogen
18.
Slight attraction that develops between oppositely charged regions of nearby molecules.
a)
Van Der Waals Forces
b)
Covalent Bond
c)
Ionic Bond
d)
Hydrogen Bond
19.
Pure Substance that consists entirely of one type of atom.
a)
Atom
b)
Cell
c)
Ion
d)
Element
20.
Type of bond between atoms in which the electrons are shared.
a)
Covalent
b)
Ionic
c)
Hydrogen
d)
Peptide
21.
One of several forms of a single element, which contains the same number of protons but different number of neutrons.
a)
Atom
b)
Neutron
c)
Isotope
d)
Molecule
22.
Negatively charged particle located in the space surrounding the nucleus
a)
Neutron
b)
Proton
c)
Electron
d)
Cell
23.
Atom that has a positive or negative charge.
a)
Ion
b)
Neutron
c)
Proton
d)
Electron
24.
Monomer of a protein.
a)
sugar
b)
amino acid
c)
nucleotide
d)
fat
25.
Macromolecule that controls cellular functions, aids in cellular transport and fights disease.
a)
Carbohydrates
b)
Fats
c)
Protein
d)
Lipids
26.
Generic term for a molecule composed of many monomers.
a)
Polymer
b)
Molecule
c)
Compound
d)
Cell
27.
Compound that is THE major source of energy for the body.
a)
Protein
b)
Lipids
c)
Nucleic Acids
d)
Carbohydrates
28.
Mixture of water and nondissolved material...such as blood.
a)
Suspension
b)
solution
c)
mixture
d)
acid
29.
Force of attraction between different kinds of molecules
a)
adhesion
b)
cohesion
c)
hydrogen bond
d)
peptide bond
30.
Compound that produces hydroxide ions in solution.
a)
acid
b)
base
c)
nucleic acid
d)
element
31.
Substance that is dissolved in a solution.
a)
solute
b)
solution
c)
base
d)
solvent
32.
Protein catalyst that speeds up the rate of specific biological reactions.
a)
Reactant
b)
Product
c)
Enzyme
d)
Substrate
33.
Reactant of an enzyme-catalyzed reaction.
a)
Substrate
b)
Product
c)
Enzyme
d)
Molecule
34.
Starches and Sugars are examples of what group of organic compounds?
a)
Nucleic Acids
b)
Carbohydrates
c)
Lipids
d)
Proteins
35.
Which of the following is a function of nucleic acis in living things?
a)
Store and transmit genetic information.
b)
Store energy.
c)
Transport substances into cells.
d)
Speed up the rate of chemical reactions.
36.
Which of the following is a function of nucleic acids in living things?
a)
Store and transmit genetic information.
b)
Store energy.
c)
Transport substances into cells.
d)
Speed up the rate of chemical reactions.
37.
Why is carbon so special compared to other elements?
a)
Carbon atoms can bond ton one another and form a lot of different structures.
b)
Carbon atoms 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.
38.
When hydrogen and oxygen combine to form water, water is
a)
a product
b)
a reactant
c)
an enzyme
d)
a catalyst
39.
What type of ion forms when an atom gains electrons?
a)
positive
b)
negative
c)
neutral
d)
radioactive
40.
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 positive
b)
slightly negative
c)
very positive
d)
very negative
41.
If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is
a)
3
b)
4
c)
7
d)
11
42.
If an atom contains 11 protons and 12 neutrons, its atomic number is
a)
1
b)
11
c)
12
d)
23
43.
Looking at a cell under a microscope, yo note that it is a prokaryote. How do you know?
a)
The cell lacks a cytoplasm.
b)
The cell lacks a cell membrane.
c)
The cell lacks a nucleus.
d)
The cell lacks genetic material.
44.
Which of the following is NOT found in the nucleus?
a)
Mitochondria
b)
DNA
c)
Chromatin
d)
Nucleolus
45.
Which of the following is NOT a principle of the cell theory?
a)
Cells are the basic units of life.
b)
All living things are made of cells.
c)
Very few cells are able to reproduce.
d)
All cells are produced from existing cells.
46.
Which structure makes proteins using the coded instructions that come from the nucleus?
a)
Golgi Apparatus
b)
Endoplasmic Reticulum
c)
Mitochondria
d)
Ribosome
47.
What organelle would you expect to find in plant cells but not animal cells?
a)
Mitochondria
b)
Chloroplast
c)
Ribosomes
d)
Smooth Endoplasmic Reticulum
48.
Term meaning that some substances can pass across and other cannot.
a)
Osmosis
b)
Selectively Permeable
c)
Facilitate Diffusion
d)
Isotonic
49.
Diffusion of water through a selectively permeable membrane.
a)
Osmosis
b)
Facilitated Diffusion
c)
Active Transport
d)
Aqua Transport
50.
When a solution contains less solute compared to another.
a)
Hypotonic
b)
Active
c)
Hypertonic
d)
Passive
51.
Place for a signaling molecule to bind during cellular communication.
a)
Receptor
b)
Enzyme
c)
Substrate
d)
Organ
52.
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
a)
water to move into the cell.
b)
water to move out of the cell.
c)
solutes to move into the cell.
d)
it to.
53.
Which of the following structures serves as the cell's boundary from its environment?
a)
Mitochondria
b)
Cell Membrane
c)
Channel Protein
d)
Nuclear Envelope
54.
Which of the following is an autotroph?
a)
deer
b)
tree
c)
mushroom
d)
beetle
55.
The principal chemical compound that living things use to store energy is
a)
ATP
b)
DNA
c)
RNA
d)
ADP
56.
Where do the light-dependent reactions take place?
a)
in the stroma of chloroplast
b)
within the mitochondria membranes
c)
within the thylakoid membranes
d)
in the outer membrane of the chloroplasts
57.
Which of the following is the BEST summary of photosynthesis?
a)
Process that uses the energy of sunlight to convert water and carbon dioxide into high-energy sugars and oxygen.
b)
Process in which plants use energy.
c)
Process that makes energy from water and carbon dioxide.
d)
Process that keeps plants alive.
58.
Energy is released from ATP when
a)
a phosphate group is added.
b)
adenine bonds to ribose.
c)
ATP is exposed to sunlight.
d)
a phosphate group is removed.
59.
What organelle is used for cellular respiration in eukaryotes?
a)
Mitochondria
b)
Chloroplast
c)
Ribosomes
d)
Golgi Apparatus
60.
How do organisms get the energy they need?
a)
By burning food and releasing their energy as heat.
b)
By breathing oxygen into the lungs and combining it with carbon dioxide.
c)
By breaking down food molecules gradually and capturing their chemical energy.
d)
By using the sun's energy to break down food molecules and form chemicals.
61.
Which of the following is the correct sequence of events in cellular respiration?
a)
Glycolysis, Fermentation, Krebs cycle
b)
Krebs cycle, Electron Transport chain, Glycolysis
c)
Glycolysis, Krebs cycle, Electron Transport Chain
d)
Krebs cycle, Glycolysis, Electron Transport Chain
62.
What is the starting molecule for glycolysis?
a)
Glucose
b)
Pyruvic Acid
c)
ADP
d)
Oxygen
63.
The Krebs Cycle produces
a)
Carbon Dioxide
b)
Water
c)
Oxygen
d)
Glucose
64.
All of the following are sources of energy for humans during excercise EXCEPT
a)
Stored ATP
b)
Alcoholic Fermentation
c)
Lactic Acid Fermentation
d)
Cellular Respiration
65.
The products of photosynthesis are the
a)
products of cellular respiration
b)
reactants of cellular respiration
c)
products of glycolysis
d)
reactants of fermentation
66.
In eukaryotes, electron transport occurs in the
a)
inner mitochondrial membrane
b)
nucleus
c)
cell membrane
d)
cytoplasm
67.
Glycolysis requires
a)
ATP
b)
Oxygen
c)
Sunlight
d)
NADP+
68.
Lactic acid fermentation occurs in
a)
bread dough
b)
muscle cells
c)
an environment containing oxygen
d)
chloroplast
69.
How many ATP molecules are made per glucose molecule during the Krebs Cycle?
a)
2
b)
4
c)
12
d)
32
70.
The electron transport chain uses high-energy electrons from the Krebs Cycle to
a)
break glucose in half
b)
convert ADP to ATP
c)
produce high-energy sugars
d)
produce oxygen gas
71.
Which of the following pass high-energy electrons to the electron transport chain?
a)
NADH and FADH2
b)
ATP and ADP
c)
Citric Acid
d)
Acetyl-CoA
72.
Which of the following happens when a cell divides?
a)
The cell's volume increases.
b)
It becomes more difficult for the cell to get rid of wastes.
c)
Each daughter cell receives its own copy of the parent cell's DNA.
d)
It becomes more difficult for the cell to get enough oxgen and nutrients
73.
A multicellular organism begins life as a single cell - a fertilized egg with a complete set of chromosoems. The cell divides to become two cells, then four cells, eight cells and so on. Which of the following statements best describes what happens during this process.
a)
Chromosomes are duplicated before cell division so that each new daughter cell has a complete set.
b)
Chromosomes are divided evenly during cell division so that each new daughter cell has an equal share of the original set
c)
Chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes
d)
Chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.
74.
During which phase of the cell cycle does mitosis happen?
a)
G1
b)
G2
c)
M
d)
S
75.
Cancer is a disorder in which some cells have lost the ability to control their
a)
size
b)
spindle fibers
c)
growth rate
d)
surface area
76.
Why are stem cells important?
a)
They have specialized DNA.
b)
They are incapable of becoming cancer cells.
c)
They have the potential to undergo cell division.
d)
They have the potential to develop into other cell types.
77.
Which of the following is a possible future benefit of stem cell research?
a)
developing a vaccine for cancer.
b)
reversing damage from a heart attack.
c)
generating embryos from nonliving tissue.
d)
increasing a persons intelligence quotient
78.
Proteins that regulate the cell cycle.
a)
growth factor
b)
stem cells
c)
cyclins
d)
enzymes
79.
Period of the cell cycle between divisions.
a)
Prophase
b)
Interphase
c)
Metaphase
d)
Cytokinesis
80.
Cells that are able to develop into any type of cell in the body.
a)
Multipotent
b)
Pluripotent
c)
Potent
d)
Totipotent
81.
Programmed cell death.
a)
Totipotent
b)
Apoptosis
c)
Cytokinesis
d)
Cyclin
82.
Type of asexual reproduction in which an organism replicated its DNA and divides in half, producing two identical daughter cells. Occurs in bacteria.
a)
Mitosis
b)
Meiosis
c)
Binary Fission
d)
Cell Division
83.
Sister chromatids are attached to each other at an area called the:
a)
centromere
b)
chromosome
c)
spindle
d)
centriole
84.
15If a cell has 15 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis?
a)
15
b)
12
c)
30
d)
7
85.
Nucleotide triplet found on mRNA that codes for the amino acid sequence.
a)
codon
b)
anticodon
c)
tRNA
d)
rRNA
86.
DNA at the tips of chromosomes.
a)
Polypeptide
b)
DNA polymerase
c)
RNA polymersase
d)
Telomere
87.
What scientist made x-ray diffraction photos of DNA?
a)
Franklin
b)
Hershey-Chase
c)
Griffith
d)
Watson
88.
Who discovered the shape of DNA to be a double helix?
a)
Avery
b)
Griffith
c)
Franklin and Wilkins
d)
Watson and Crick
89.
In eukaryotes, DNA
a)
is located in the nucleus
b)
is located in the ribosomes.
c)
is circular
d)
floats freely in the cytoplasm
90.
DNA replication results in two DNA molecules,
a)
each with two new strands.
b)
each with one new strand and one original strand.
c)
each with two original strands
d)
one with two new strands and the other with two original strands
91.
Which is the correct sequence of the transfer of information in most organisms?
a)
protein to DNA to RNA
b)
DNA to protein to RNA
c)
DNA to RNA to protein
d)
RNA to protein to DNA
92.
What is produced during transcription?
a)
mRNA
b)
DNA
c)
Proteins
d)
tRNA
93.
What happens during translation?
a)
mRNA is made from a DNA code.
b)
The cell uses a mRNA code to make proteins
c)
Transfer RNA is made from a mRNA code.
d)
Copies of DNA molecules are made.
94.
Enzyme required for transcription.
a)
RNA Interface
b)
RNA polymerase
c)
DNA polymerase
d)
Telomerase
95.
Condition in which an organism has extra sets of chromosomes.
a)
Polyploidy
b)
Poiont Mutation
c)
Sickle Cell ANemia
d)
Down Syndrome
Reset
