WorksheetsBiology First Semester Exam
Total questions: 99
Worksheet time: 50mins
Name
Class
Date
1.
Where does cellular respiration occur?
a)
nucleus
b)
vacuole
c)
mitochondria
d)
chloroplast
2.
When the scientist determines the variable before starting the experiment, we call that a(n) _______ variable.
a)
true
b)
independent
c)
dependent
d)
control
3.
A theory is backed up with a lot of experimental data. It could be disproved at a later date by new data.
a)
true
b)
False
4.
Quantitative data is data that includes numbers.
a)
true
b)
False
5.
If you wrote down the observations of an organism and described its color, texture, movement etc. you are recording ________ data.
a)
inference
b)
qualitative
c)
quantitative
d)
hypothesis
6.
An observation is the act of noticing or describing events or processes using your ____.
a)
data
b)
inference
c)
DNA
d)
senses
7.
Steps of the scientific method include ____.
a)
hypothesis, experiment, conclusion,
b)
bias, control group, observation
c)
measurement in meters, inference, theory
d)
none of the above
8.
The group where all factors are kept the same is the ____ group.
a)
experimental
b)
control
c)
dependent
d)
independent
9.
Data can be quantitative or qualitative.
a)
True
b)
False
10.
Which of the following is the correct equation for photosynthesis?
a)
CO2 + H20 + sugar => 02 +light
b)
CO2 + light + H2O => CO2 + sugar
c)
CO2 + light + H2O => O2 + sugar
d)
CO2 + O2 + H2O => light +sugar
11.
What is the original energy source for living things?
a)
sugar
b)
Sun
c)
water
d)
carbon dioxide
12.
These organisms perform photosynthesis.
a)
Heterotrophs or consumers
b)
autotrophs or consumers
c)
autotrophs or producers
d)
heterotrophs or producers
13.
_____ means oxygen is needed.
a)
Glycolysis
b)
Aerobic
c)
Anaerobic
d)
Fermentation
14.
What is the pigment in chloroplasts that is needed for photosynthesis?
a)
ADP
b)
ATP
c)
chlorophyll
d)
methylene blue
15.
Which gas is needed for photosynthesis?
a)
oxygen
b)
nitrogen
c)
sulfur
d)
carbon dioxide
16.
What is the correct equation for cellular respiration?
a)
6CO2 + C6H12O6 => 6CO2 + 6H2O + energy
b)
6O2 + C6H12O6 => 6CO2 + 6H2O + energy
c)
6CO2 + 6H2O => 6O2 + C6H12O6 + energy
d)
6+6=12
17.
What is one of the reactants of cellular respiration?
a)
water
b)
glucose
c)
carbon dioxide
d)
light energy
18.
What are the products of cellular respiration?
a)
glucose and oxygen
b)
lactic acid
c)
carbon dioxide and water
d)
carbon monoxide
19.
Where do the light-dependent reactions occur?
a)
stroma
b)
thylakoid
c)
mesophyll
d)
matrix
20.
Where do the light-independent reactions occur?
a)
stroma
b)
thylakoid
c)
mesophyll
d)
matrix
21.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and carbon dioxide
c)
oxygen and glucose
d)
oxygen and water
22.
Why is photosynthesis important?
a)
It removes oxygen from the air.
b)
it is not important.
c)
It converts the Sun's energy into chemical energy for life forms to use.
d)
It makes plants green.
23.
Cells use ATP as their form of fuel. It is their energy molecule.
a)
true
b)
false
24.
The ATP molecule has a phosphate broken off to release energy and then becomes ADP.
a)
True
b)
False
25.
If an atom contains 3 protons, 4 neutrons, and 3 electrons, then its mass number is
a)
11
b)
7
c)
4
d)
3
26.
The three particles that make up atoms are ___
a)
positives, negatives, and neutrals
b)
protons, neutrons, and isotopes
c)
electrons, ions, and protons
d)
protons, neutrons, electrons
27.
A covalent bonds forms when electrons are ______ while an ionic bond forms when electrons are _________.
a)
received, given
b)
traded, traded
c)
shared, transferred
d)
transferred, shared
28.
If an atom contains 11 protons and 12 neutrons, its atomic number is ____
a)
10
b)
11
c)
12
d)
11.5
29.
An element is a substance made of only one kind of atom.
a)
True
b)
False
30.
Because they have the same number of protons and electrons, isotopes of the same element have the same chemical properties.
a)
True
b)
False
31.
An ion is an atom that has equal numbers of protons and electrons.
a)
True
b)
False
32.
Water molecules are polar with oxygen being ____ and hydrogen being _______.
a)
slightly negative, slightly positive
b)
slightly positive, slightly negative
c)
positive, positive
d)
negative, negative
33.
A solution is a _____.
a)
combination of isotopes
b)
chemical reaction
c)
mixture in which undissolved substances do not settle out
d)
mixture in which the substances are evenly spread out
34.
A substance with a pH of 6 is called ___.
a)
an acid
b)
a base
c)
neutral
d)
water
35.
When salt is dissolved in water, water is the ___.
a)
solution
b)
solute
c)
solvent
d)
reactant
36.
When water sticks to water, we call that _____.
a)
cohesion
b)
adhesion
c)
pH
d)
heat capacity
37.
Adhesion is when water sticks to ____.
a)
water
b)
other polar substances
c)
nothing
d)
acids
38.
What kind of atoms are bonded to carbon atoms in the macromolecules you have studied?
a)
helium, oxygen, and nitrogen
b)
calcium, hydrogen, and oxygen
c)
hydrogen, nitrogen, and oxygen
d)
helium, sodium, and carbon
39.
Amino acid is to protein as
a)
fat is to protein
b)
sugar is to fat
c)
DNA is to RNA
d)
glucose is to starch
40.
Carbohydrates are made of ____.
a)
nitrogen, sulfur, hydrogen
b)
carbon, hydrogen, oxygen
c)
carbon, phosphorus, hydrogen
d)
nitrogen, oxygen, hydrogen
41.
Which of the following is not a monomer?
a)
glucose
b)
amino acid
c)
nucleotide
d)
protein
42.
The four macromolecules we studied all contain carbon.
a)
True
b)
False
43.
Which molecule insulates us, makes up cell membranes and is used for long-term energy storage?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
44.
DNA and RNA are examples of _____.
a)
Carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
45.
Why can carbon form long chains?
a)
It can bond with up to four other atoms for each carbon atom.
b)
It likes to form long chains.
c)
It forms ionic bonds with up to four other atoms.
d)
It is attracted to four other negative ions.
46.
Oils, waxes, and fats are examples of _____.
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
47.
If carbon has an atomic number of 6, how many valence (outer) electrons does it have?
a)
2
b)
1
c)
4
d)
6
48.
Which of the following is NOT a function of protein?
a)
store and transmit genetic information
b)
help fight disease
c)
control the rate of reactions
d)
move substances in and out of cells
49.
In chemical reactions, atoms are ______.
a)
created
b)
destroyed
c)
rearranged
d)
neutralized
50.
When hydrogen and oxygen combine to form water, water is the ________.
a)
product
b)
reactant
c)
enzyme
d)
catalyst
51.
Identify the reactant(s) in the chemical equation CO2 + H2O ----> H2CO3
a)
CO2 only
b)
H2CO3
c)
H2O
d)
both CO2 and H2O
52.
The energy needed to get a reaction started is called the _______.
a)
reaction energy
b)
activation energy
c)
catalyst energy
d)
chemical energy
53.
What is the effect of enzymes on a chemical reaction?
a)
enzymes lower activation energy
b)
enzymes raise activation energy
c)
enzymes have no effect on activation energy
d)
enzymes create equilibrium
54.
A(n)________ reaction gives off more energy than it takes to start it.
a)
endothermic
b)
exothermic
c)
chemical
d)
over
55.
An _______ reaction requires more energy to start it than it gives off.
a)
endothermic
b)
exothermic
c)
chemical
d)
over
56.
When a cell brings material inside it using a vesicle, we call that _______.
a)
passive transport
b)
endocytosis
c)
exocytosis
d)
osmosis
57.
What term describes the relatively constant internal conditions of an organism?
a)
specialization
b)
organ system
c)
unicellularity
d)
homeostasis
58.
The diffusion of water across a selectively permeable membrane is called ______.
a)
active transport
b)
endocytosis
c)
phagocytosis
d)
osmosis
59.
Which of the following is a function of the cell membrane?
a)
regulates the movement of materials in and out of a cell
b)
breaks down lipids, proteins, and carbohydrates from food
c)
keeps the cell wall in place
d)
stores food and water
60.
What type of cell transport requires energy from the cell?
a)
diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
61.
In passive transport, particles move from areas of _____ concentration to areas of _____ concentration until equal.
a)
low, high
b)
high, low
c)
equal, equal
d)
high, high
62.
In active transport, particles move from areas of ____ concentration to areas of ____ concentration.
a)
low, high
b)
high, low
c)
equal, equal
d)
high, high
63.
In passive transport, the energy to move molecules comes from ______.
a)
the cell
b)
the kinetic energy of the molecules
c)
the sun
d)
ribosomes
64.
Osmosis only happens in cells.
a)
True
b)
False
65.
Active transport moves ______.
a)
large molecules
b)
large amounts of small molecules
c)
both large molecules and large amounts of small molecules
d)
small molecules only
66.
Facilitated diffusion is like regular diffusion except ______.
a)
it requires cell energy
b)
it requires a transport protein
c)
it only moves water
d)
it only moves charged particles
67.
When the water outside a cell and the water inside a cell are the same amounts, the cell is said to be in ________.
a)
space
b)
equilibrium
c)
quarantine
d)
nirvana
68.
Selective permeability means ______.
a)
everything passes through the cell membrane
b)
nothing passes through the cell membrane
c)
some things pass through the membrane and others do not
d)
all of these answers
69.
The cell membrane is made up of ______.
a)
only phospholipids
b)
phospholipids and proteins only
c)
phospholipids, proteins, cholesterol, carbohydrates
d)
phospholipids, DNA, proteins, cholesterol
70.
If a cell has 80% water and it sits in a solution of 90% water, water will move ______ the cell.
a)
into
b)
out of
c)
none of these answers
71.
If a cell has 80% water inside it and sits in a solution with 60% water, water will move ______ the cell.
a)
into
b)
out of
c)
both in an out to keep equilibrium
72.
Which of the following is NOT a characteristic of all living things?
a)
response to the environment
b)
ability to move
c)
growth and development
d)
ability to reproduce
73.
Based on your observations, you suggest that the presence of water could accelerate the growth of bread mold. This is
a)
a conclusion
b)
a hypothesis
c)
an experiment
d)
an analysis
74.
Information gathered from observing an organism over a two-week period is called
a)
inferences
b)
data
c)
variables
d)
hypotheses
75.
A scientific hypothesis can be
a)
proven without much evidence to support it
b)
tested by experiments
c)
accepted as a law
d)
based on personal beliefs not data
76.
The combination of chemical reactions though which an organism carries out its life processes is called ______.
a)
homeostasis
b)
metabolism
c)
catalysts
d)
diffusion
77.
Which organelle converts chemical energy stored in food into energy the cell can use?
a)
Golgi apparatus
b)
cell membrane
c)
mitochondria
d)
chloroplast
78.
Which of the following is NOT a principle of the cell theory?
a)
All cells come from pre-existing cells
b)
Cells are the basic unit of life
c)
All living things are made of cells
d)
Very few cells are able to reproduce
79.
Not all cells are alike. Which of the following is NOT a true statement about the differences between cells?
a)
Some cells have a nucleus and others do not.
b)
Different kinds of cells are different sizes.
c)
Cells come in different shapes.
d)
Most cells have a membrane, but some do not.
80.
Which organelle breaks down old cell parts?
a)
nucleus
b)
lysosome
c)
ER
d)
Golgi
81.
How do you know that a cell is a prokaryote?
a)
it lacks a cell membrane
b)
it has cytoplasm
c)
it lacks a nucleus
d)
it has no DNA
82.
Unlike the cell membrane, the cell wall is ___
a)
selectively permeable
b)
found in all organisms
c)
composed of a lipid bilayer
d)
a rigid structure
83.
Which organelles are involved in energy conversion?
a)
smooth and rough endoplasmic reticulum
b)
mitochondria and ribosomes
c)
Golgi and chloroplasts
d)
mitochondria and chloroplasts
84.
Which structure makes proteins?
a)
ribosomes
b)
Golgi
c)
lysosomes
d)
vacuoles
85.
Which organisms are prokaryotes?
a)
plants
b)
animals
c)
bacteria
d)
viruses
86.
Which of the following is a function of the nucleus?
a)
builds proteins
b)
stores sugar
c)
stores DNA
d)
packages proteins
87.
Who named cells?
a)
Virchow
b)
Hooke
c)
Leewenhoek
d)
Schleiden
88.
Who discovered all plants and animals were made of cells?
a)
Schleiden and Schwann
b)
Hooke and Virchow
c)
Leewenhoek and Hooke
89.
Viruses are not made of cells. Therefore, viruses are not considered to be living things.
a)
True
b)
False
90.
Cells that make a lot of protein are expected to have many ribosomes.
a)
True
b)
False
91.
A storage structure for food and water in a cell is called _____.
a)
cell membrane
b)
vacuole
c)
ER
d)
Golgi
92.
_____ capture light and make chemical energy.
a)
Chloroplasts
b)
mitochondria
c)
cell walls
d)
vesicles
93.
Vesicles move materials in and out of cells using endo or excytosis.
a)
True
b)
False
94.
I studied for this exam _____.
a)
not at all
b)
only during class time
c)
outside of class a little
d)
outside of class a lot
95.
The name of the microscope part that controls the amount of light is ____
a)
light source
b)
light diaphragm
c)
nosepiece
d)
stage
96.
The eyepiece magnifies 10X by itself.
a)
true
b)
False
97.
When you push the slide to the left, it appears to move to the right when looking through the eyepiece.
a)
true
b)
false
98.
Eukaryotic cells are cells that _____.
a)
have a nucleus
b)
have cell organelles
c)
are plant and animal cells
d)
all of the above
e)
none of the above
99.
Evaluate yourself in this class. What are you doing well? What could you improve upon? How could you improve your grade or your learning in this class? How much time do you waste playing games/watching videos? YOU MUST RESPOND TO THIS QUESTION AND WRITE AT LEAST A PARAGRAPH.
4 lines
100 %
