WorksheetsBiology - Semester 1 Review
Total questions: 237
Worksheet time: 6hrs 56mins
Which of the following questions CANNOT be answered by science?
How do birds fly?
B) Is this a good song?
C) What is an atom?
D) How does a clock work?
One one-thousandth is expressed by which prefix?
kilo–
centi–
nano–
milli–
On which of the following is SI based?
inches
English units
powers of five
powers of ten
Which type of graph is most useful for showing how the relationship between the independent and dependent variables changes over time?
circle graph
bar graph
pictograph
line graph
What quantity does the kilogram measure?
time
distance
force
mass
A testable prediction is a(n) _____.
hypothesis
experiment
exercise
variable
Of the following, the unit that cannot be used to express volume is _____.
kg
L
cm3
mL
a beaker contains 0.32L of water. The beaker's volume is ______ milliliters
3.2
0.032
32
320
What is the dependent variable?
The variable measured
The variable changed
The variable kept the same
The variable that determines results
1. Students look out a window for 5 minutes. They record the number, the type, and the color of the vehicles that pass. What are the students doing?
concluding
experimenting
hypothesizing
observing
What are graphs used for?
To show data in an understandable way
To keep track of things so you don't forget
To catch the eye and look colorful
To draw pictures on
What would make the best title for this graph?
Colors I like best
Candy colors
Comparison Graph
# of Colors in Smarties Candies
What is the final step in the scientific method?
Write a conclusion about your results
Record and analyze the data
Form a hypothesis
Research your topic
What is the purpose of the scientific method?
To solve problems and create experiments
To research new information
To practice safety
To become a scientist
Jennifer wants to know if students do better on their homework if they listen to classical music or hip hop music. What is the independent variable in this experiment?
Students' grades on homework
The age of the students
The volume of the music
The type of music
When graphing data, where do you place your independent variable?
y-axis
x-axis
in the title
it does not need to go on the graph
What is the main reason scientists have constants?
So scientists know their results came only from the independent variable and nothing else
So scientists stay safe
So scientists can record data easier
So the experiment is clear and easy to understand
7,000 g = ____ kg
70
700
7
0.07
648 g = ____ mg
6,480
64,800
648,000
64.8
240 cm = ___________ m
2400
24
2.4
0.24
3 km = ___________ mm
30
300
3,000
3,000,000
The following list represents characteristics of a living thing :
made of cells, has lungs, can reproduce
made of cells, grows and develops, uses energy
has similar chemicals, makes noises, made of cells
Which item listed is NOT a characteristic of life?
adjusting to stimuli
getting and using energy
growing and developing
breathing
A (an) ____ is a testable explanation to an observed phenomena.
independent variable
data set
experiment
hypothesis
What factor remains fixed during an experiment?
dependent variable
independent variable
data
constant
Based on this graph, which of the following statements is correct?
The anole weighs 2.5 grams after 3 days of observation.
The mass of the anole increased by 2.5 grams in 3 days.
The anole weighs 2.3 grams after 3 days.
The mass of the anole increased by 2.7 grams during the experiment.
A scientist hypothesizes the temperature at which an alligator’s egg is incubated will determine whether the alligator will be male or female. The independent variable is
the incubator
the male alligator
the temperature
the gender of the alligator
When is an ionic bond formed?
when electrons are shared
when protons are shared
when oppositely charged atoms gain or lose electrons
when oppositely charged atoms gain or lose a proton
What makes carbon so important to life?
bonding properties
its place on the Periodic Table
it is a reactant in all chemical reactions
it is an enzyme
What gives water so many important properties for life?
adhesion and cohesion
the amount of carbon in each molecule
energy released exothermically
hydrogen bonds give it polarity
What makes a chemical reaction?
matter is conserved
breaking and forming of chemical bonds
when products form reactants
when you do a lab
What are the smallest basic units of matter?
molecules
atoms
elements
7th graders
Which of the following solutions has the highest Hydrogen ion concentration?
a solution with a pH of 1
a solution with a pH of 4
a solution with a pH of 7
a solution with a pH of 10
A catalyzed reaction
increases the products made
uses less activation energy to get started
has a slower reaction rate
uses more reactants throughout the reaction
Enzymes act on
products
proteins
amino acids
substrates
Atoms that share electrons are
in a covalent bond
in an ionic bond
are usually salts
always metals
What are the reactants in this chemical equation?
CH4 and 2O2
carbon and oxygen
CO2 and 2 H2O
water and methane
Activation energy
is the term for the amount of energy in each reactant
helps the enzyme to increase the rate of the reaction
is the term for the amount of energy that needs to be added for a chemical reaction to start
is the term for the amount of energy released by the reaction after it starts
What are the 4 types of carbon-based molecules in organisms?
carbohydrates, lipids, fatty acids, and monomers
polymers, monomers, acids, bases
adhesion, cohesion, evaporative cooling, and high specific heat
nucleic acids, proteins, lipids, and carbohydrates
What are proteins made of?
amino acids
monosaccharides
nucleic acids
fatty acids
Which carbon-based molecule includes sugar and starches?
carbohydrates
lipids
proteins
nucleic acids
What is the primary function of DNA?
to make nucleic acids
long term energy storage
store genetic information
to function as RNA
What are the products in this chemical reaction?
calcium and oxygen
Ca and CaO
2Ca and O2
2CaO
What is happening in this picture?
an enzyme is binding a substrate together to form a product
an enzyme is breaking down a substrate to release new products
the active site of the enzyme does not fit the substrate
a change in pH has damaged the enzyme
The building blocks of most living things contain the element
carbon
nitrogen
calcium
sodium
Changes in the pH, temperature, enzyme concentration, and/or substrate concentration can negatively affect
the activation energy of chemical reactions
the bond energy released by reactants in a reaction
the efficient function of an enzyme or catalyzed reaction
the polarity of water used for evaporative cooling
Large bodies of water, such as lakes and oceans, do no quickly fluctuate in temperature. What is the reason behind this phenomenon?
Water is an acid
Water has a high heat capacity
Water is a universal solvent
Water acts as a base
Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?
Water expands as it freezes
Water is an excellent solvent
Water exhibits cohesive behavior
Water is able to moderate temperature
A water strider can skate along the top of a pond because:
Low surface tension of water
Hydrogen bonds result in water cohesion (surface tension)
Covalent bonds result in water cohesion
Water striders have adapted to take advantage of water cohesion
Water is often called the “universal solvent” because many substances can be dissolved in water. What property of water allows it to be such a universal solvent?
Purity
Polarity and cohesion
High heat capacity
Expansion upon freezing
Which of the following is a function of a carbohydrate?
Provides long term energy to body
Supports the body in building structures necessary for survival
Provides short term energy to the body
Gives the body instructions for how to build our body's structures
Atoms are made up of what?
molecules
compounds
elements
subatomic particles
Which of the following are subatomic particles? (Check all that apply)
protons
neutrons
megatrons
electrons
Which subatomic particle has a positive charge?
proton
neutron
electron
midichlorian
Which subatomic particle has no charge, also known as a neutral charge?
proton
neutron
electron
chakra
The nucleus of an atom contains which subatomic particles?
protons and electrons
protons and neutrons
electrons and neutrons
protons, electrons, and neutrons
What is the basic structural and functional unit of all living things?
atom
cell
bacteria
animalcules
The 3 parts of the Cell Theory are...?
All living things are composed of cells
Cells are the basic units of structure and function in living things
All cells are produced from other cells
All living things are composed of cells
Cells are the basic units of dance and vibes in living things
All cells are destroyed from other aliens
All living things are composed of Jell-O
Cells are the basic units of structure and function in living things
All cells are produced from factories in Canada
All living things are composed of cells
Cells do karate and practice eating whole pies in their free time
All cells are produced from other cells
What does it mean to say that a cell membrane is semipermeable?
it allows some materials to pass through
it allows nothing to enter the cell, only to leave
It only allows things into the cell and not out
it allows all materials to pass through
What is the function of an organelle?
to take up space
to carry out a specific function in the cell
to carry out all the functions of a cell
to create new cells
What organelle do many ribosomes connect themselves to?
lysosome
mitochondria
endoplasmic reticulum
golgi apparatus
Which organelle uses enzymes to break down waste in a cell?
Lysosome
Ribosome
Chloroplast
Golgi Apparatus
What is the function of the mitochondria?
to capture energy from the sun and turn it to sugar
to release usable energy for the cell
to store energy for when the cell needs it
to remove waste from the cell
What organelle allows plants to create their glucose?
Mitochondira
Lysosome
Ribosome
Chloroplast
Which of the following is not one of the 5 things all cells have?
cell membrane
cytoplasm
DNA
nucleus
What is the difference the key difference between prokaryotic and eukaryotic cells?
Prokaryotes have a nucleus, Eukaryotes do not
Eukaryotes have a nucleus, Prokaryotes do not
Prokaryotes have a cell membrane, Eukaryotes do not
Eukaryotes have ribosomes, Prokaryotes do not
Which of the following organelles do plants have that animals to not? (Select all that apply)
Cell wall
Golgi Apparatus
Endoplasmic Reticulum
Chloroplasts
Ribosomes
Which organelle provides structure and protection to plant cells?
cell membrane
ribosome
golgi apparatus
cell wall
What is the name of the "packages" the golgi body creates?
Vacuoles
Lysosomes
Vesicles
Ribosomes
Which of the following is not part of the nucleus?
Chromatin
Centrioles
Nuclear Envelope
Nuclear Pores
Nucleolus
What type of cell is this?
Plant
Animal
Prokaryote
What type of cell is this?
Plant
Animal
Prokaryote
What type of cell is this?
Plant
Animal
Prokaryote
The diffusion of water molecules through a selectively permeable membrane is:
Homeostasis
Osmosis
Active Transport
Equilibrium
All matter is composed of very small particles called:
Molecules
Ions
Solutes
Isotopes
The movement of molecules from a place where there is a greater/higher concentration to an area where there is lesser/lower concentration is:
Homeostasis
Diffusion
Endocytosis
Active Transport
A selectively permeable membrane
allows all substances to enter and leave
prevents all substances from entering or leaving
allows certain size substances to enter and leave
allows only waste materials to leave
A solution in which the concentration of solutes is the same inside and outside of a cell is a _____________________ solution.
hypertonic
hypotonic
isotonic
homeotonic
If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called:
Isotonic
Hypotonic
Hypertonic
Homeotonic
If a red blood cell is placed in a hypotonic solution, it will eventually
shrink up
swell and burst
no change will occur
swell and not burst
When substances move in and out of cells using only their own kinetic energy this is called:
Active Transport
Passive Transport
Activation Energy
Selective Transport
Osmosis is a type of
turgor pressure
homeostasis
active transport
facilitated diffusion
An example of diffusion is
water molecules moving into a plant cell after rain
red food coloring moving through water until the water is pink
water molecules leaving the cells of a freshwater fish, when placed in a saltwater tank
none of the above
Which way will water molecules move if a red blood cell is placed in distilled water?
Out of the red blood cell
Into the red blood cell
Water molecules will move in and out at the same rate
No water molecules will move
Because the human body is 60% water, an important process which helps humans and all living things maintain a “normal” internal cellular environment even when external surroundings are constantly changing is:
diffusion
osmosis
active transport
carrier transport
Molecular movement continues even when there is no overall change in concentration. This is referred to as:
active transport
passive transport
homeostasis
equilibrium
The difference in the concentration of a substance across a space is called:
kinetic energy gradient
solvent gradient
concentration gradient
dynamic equilibrium
Cell "eating" is referred to as which of the following?
phagocytosis
exocytosis
pinocytosis
passive transport
Cell "drinking" is referred to as which of the following?
phagocytosis
pinocytosis
exocytosis
passive transport
A cell that is 90% water and 10% solute is placed in a solution that is 90% water and 10% solute. Which of the following is correct?
it is hypertonic because water is exiting the cell.
it is isotonic because the concentration is the same inside and outside the cell.
it is hypotonic because water is entering the cell.
it is hypertonic because water is entering the cell.
A cell that is 80% water and 20% solute is placed in a solution that is 60% water and 40% solute. Which of the following is correct?
It is isotonic because the concentration is the same inside and outside the cell.
It is hypertonic because water is exiting the cell.
It is hypotonic because water is entering the cell.
It is hypertonic because water is entering the cell.
A cell that is 70% water and 30% solute is placed in a solution that is 75% water and 25% solute. Which of the following is correct?
It is isotonic because the concentration is the same inside and outside the cell.
It is hypertonic because water is exiting the cell.
It is hypotonic because water is entering the cell.
It is hypertonic because water is entering the cell.
What can happen to a cell in a hypotonic solution?
It can shrink and shrivel up.
It can swell and burst.
Nothing will happen.
All of these are correct.
Who is considered the "father" of modern genetics?
Einstein
Mendel
Disney
Washington
In the punnett square below, what belongs in the missing square
An allele (T) for tongue-rolling is dominant over non-tongue rolling. What would be the genotypes of both parents if all of the offspring in the F1 generation are non-tongue rolling?
TT X Tt
Tt X tt
tt X tt
TT X tt
RR X Rr
R = round
r = wrinkled
When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....
Incomplete Dominance
Codominance
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
What is the scientific term that refers to sex cells?
autosome
gamete
karyotype
chromosome
This term refers to half the normal chromosome number
haploid
2N
diploid
3N
The stage of meiosis where crossing over or the exchange of genetic information happens between pairs of chromosomes
Prophase II
Telophase I
Metaphase II
Prophase I
All sperm and egg cells are genetically identical.
TRUE
FALSE
The term that refers to a cell that has its full or complete number of chromosomes is
diploid
N
gamete
haplpoid
Name the stage: Chromosomes line up in the middle of the cell.
Prophase
Metaphase
Anaphase
Telophase
Sea turtles have 56 chromosome in their somatic cells. How many chromosomes are in their gametes?
28
56
112
46
What is another term for body cells?
somatic cells
gamete
stem cell
neural cell
The four cells that are produced after Meiosis are _______.
haploid because they contain just half the number of chromosomes as the parent cell.
diploid because they contain as many chromosomes as the parent cell.
diploid because they contain twice as many chromosomes as the parent cell.
What effect does crossing over has in terms of traits of offspring?
Results in identical traits of offsprings.
Causes variation in the traits of offsprings.
It really does nothing to the traits of offspring.
Check all the blood types that exist in humans.
A
B
AB
O
If a red blood cell has A antigens on its surface, what is its blood type?
A
B
AB
O
Which blood type is the Universal Donor?
A
B
AB
O
What happens if a person receives blood from a blood type that is incompatible to them?
They could die
Nothing, no harm done
Mendel's law of dominance means
genes from parents are dominant in the offspring
one allele of a gene is dominant over the other
two genes are both showing up in the offspring
blending of traits results in a new phenotype
blood type AA x blood type BB= type AB in offspring blood type
codominance
incomplete dominance
dominant and recessive genes
What is the gender of this person?
Male
Female
What is a karyotype?
An image that shows all of the DNA within an organism
An image that shows the chromosomes from a single cell within a single organism
The entire genetic sequence of humans
How many CHROMOSOME PAIRS does this karyotype have?
10
13
16
What is the genotype of individual IV – 2?
HH
HY
hh
Yh
Cystic fibrosis is an autosomal recessive disease .
Study the pedigree what are the possible genotypes of #10? (more than one answer)
AA
Aa
aa
XAXa
A genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines.
down syndrome
sickle-cell disease
cystic fibrosis
hemophilia
A genetic disorder that causes the red blood cells of people with the disease to have an unusual sickle shape.
sickle-cell disease
hemophilia
down syndrome
cystic fibrosis
A genetic disorder in which a person's blood clots very slowly or not at all.
cystic fibrosis
sickle-cell disease
hemophilia
down syndrome
DNA is replicated during ______ of the cell cycle.
Gap 1
Synthesis (S phase)
Gap 2
Gap 0
DNA is replicated during ______ of the cell cycle.
Gap 1
Synthesis (S phase)
Gap 2
Gap 0
3) Nitrogen Base
2) Phosphate
3) Nitrogen Base
2) Ribose Sugar
3) Nitrogen Base
2) Deoxyribose Sugar
3) Nitrogen Base
These undifferentiated cells can become specialized cells after receiving a chemical signal.
stem cells
generic cells
blank cells
empty cells
When cells go through mitosis repeatedly without entering interphase, this results
arthritis
cancer
mutation
diabetes
The D in DNA stands for
double stranded
deoxyribo
denature
dicarbo
DNA is copied during
During cell division
All the time
During protein production
Which of the following is NOT part of a nucleotide
sugar
phosphate
nitrogen base
amino acid
Adenine pairs with
Thymine
Thyme
Guanine
Glutamine
The backbone of DNA is made of
base pairs
sugars and phosphates
only sugars
only phosphates
The two strands of DNA are held together with
covalent bonds
hydrogen bonds
nothing
If a DNA molecule has 30% Guanine bases, how many Cytosine bases will it have?
30%
25%
20%
10%
One function of DNA is to
code for proteins
code for lipids
code for carbohydrates
The first step in DNA replication is
to unwind and unzip the two strands
to break the backbone in half so the sequence can be copies
to attach new nucleotides
to proof read the sequence
What does semiconservative replication mean?
that the DNA is proof read at the end of the process
that the newly made DNA has one strand from the original DNA and one new strand
that the newly made DNA will send half of its strand to one cell and leave the old strand in the original cell
that the original DNA strands come back together after replication is over
Which is this picture showing?
Protein synthesis
DNA replication
Gene editing
What is the name of this?
DNA
deoxyribose sugar
nucleotide
nitrogenous base
The DNA sequence is TTA CCG What is the complementary sequence?
TTA CCG
AAT GGC
GGC AAT
The DNA sequence is ATG what is the complementary sequence?
ATG
GTA
TAC
Semiconservative replication is how DNA reproduces. What does it mean
DNA will only partially copy itself
One strand is kept as a template to build the other new strand
One strand is upside down to the other strand.
One strand is made of DNA while the other strand is made of proteins
Which organelle is the location where protein is made?
Ribosome
Nucleus
Cytoplasm
Nucleotide
During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus.
tRNA
mRNA
rRNA
dRNA
When these bond together, they form a protein
Amino Acids
Peptide Bonds
Ribose
Nucleotides
These building blocks consist of a sugar, phosphate, and nitrogen base.
Ribose
Nucleotide
Gene
Protein
How many amino acids are found on one tRNA?
20
4
1
3
Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA
UUGACUU
TTGACTT
AACTGAA
AACUGAA
. What are the building blocks of proteins called?
nucleotides
proteins
amino acids
carbohydrates
AUG-CCA-GUA-GGG-UAA
Glucose
Overall, protein synthesis consists of these steps
DNA synthesis, RNA synthesis and transcription
transcription and translation
DNA synthesis, transcription and translation
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA
Which of the following is an example of a harmful mutation?
Developing cancer
Makes the organism faster
Makes the organism a predator
Develops sharp claws
What did Avery (The Scientist) discover about DNA?
DNA stores and transmits the genetic information from one generation of an organism to the next.
DNA has a look of a double Helix
Used model-building to determine the structure of DNA.
Frederick Griffith & Oswald Avery
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Erwin Chargaff
Used X-ray crystallography to determine the structure of DNA.
Frederick Griffith & Oswald Avery
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Erwin Chargaff
Used bacteria, viruses, radioactive isotopes, a centrifuge, & a blender to prove once and for all that DNA was the hereditary molecule.
Frederick Griffith & Oswald Avery
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Erwin Chargaff
Whose experiment?
Frederick Griffith & Oswald Avery
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Erwin Chargaff
Whose experiment?
Frederick Griffith
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Oswald Avery, Colin MacLeod, and Maclyn McCarty
Whose experiment?
Frederick Griffith & Oswald Avery
Maurice Wilkins & Rosalind Franklin
Alfred Hershey & Martha Chase
James Watson & Francis Crick
Erwin Chargaff
