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WorksheetsBiology Mid-term Review
Total questions: 157
Worksheet time: 3hrs 37mins
Why does science matter?
(a)
In science we use the (a)
Length =
(a)
Mass=
(a)
volume=
(a)
1 centimer=
(a)
1 meter=
(a)
1 kilometer
(a)
1 Liter
(a)
Based on your observations, you suggest that the presence of water could accelerate the growth of bread mold.
This is
an analysis
a hypothesis
a conclusion
an experiment
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives plain water. After a two-week period, the height is measured. What is the control group of this experiment?
sunflower plants
height
concentration of salt water
the plant with regular water
The first tank of goldfish is fed the normal amount of food once a day, the second tank is fed twice a day, and the third tank four times a day during a six-week study. The fish’s body fat is recorded daily. The dependent variable is
the first tank
body fat
the amount of food
the six weeks
Which of the following makes up a molecule of water?
two atoms of hydrogen and one atom of oxygen
one atom of sodium and one atom of chlorine
one atom of hydrogen and two atoms of oxygen
one atom of hydrogen and one atom of oxygen
A substance with a pH of 6 is called
water
a base
an acid
neutral
What two molecules must a compound contain to be considered organic
Carbon and Nitrogen
Nitrogen and Oxygen
Hydrogen And Oxygen
Carbon and Hydrogen
What is the best piece of equipment for measuring volume
triple beam balance
Beaker
Graduated cylinder
Test tube
In order for an experiment to be considered controlled, how many variables should be changed at a time?
0
1
2
all the variables
The body's ability to maintain relatively stable internal conditions is called
characteristics of life
abiotic
homeostasis
biotic
All living things need to be made of cells
True
Fasle
All living things need to breathe oxygen
True
False
All living things need to respond to stimuli
True
False
In mixture of sugar and water, water is considered the
solvent
solute
solution
mixture
In a mixture of sugar and water, sugar is considered the
solvent
solution
solute
mixture
n the chemical reaction below, what are the reactants?
Select all that apply
N2 + H2 --> NH3
N2
H2
NH3
In the chemical reaction below, what are the products?
Select all that apply
N2 + H2 --> NH3
N2
H2
NH3
what type of reaction is shown below?
Organic
Homeostasis
Synthesis
Digestion
Which of the following scenarios is an example of cohesion?
Water molecules stick to the surface of a mirror.
Water molecules stick to one another and form a bead
Water sticks to the walls of blood vessels
Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.
Which of the following describes surface tension in water?
Surface tension occurs due to ionic bonding
Surface tension of water is weakened by hydrogen bonding.
Surface tension allows water to support small objects if they are placed carefully on its surface.
Surface tension is caused by water molecules repelling one another.
Which of the following best describes why ice has a lower density than liquid water?
Hydrogen bonding causes water to crystallize with more empty space between molecules than in the liquid state.
There is more space between individual atoms at lower temperatures, which means colder water has a lower density.
The water molecules have less atomic motion than ice
Because water changes from its polar form as a liquid to its nonpolar form as a solid.
Water cannot mix with certain substances such as oil. These substances are
Abiotic
Biotic
Hydrophobic
Hydrophilic
A protein is an example of a macromolecule. What is its monomer?
Amino acids
Nucleotides
Charbohydrates
Fatty acids
Which of the following are role of an enzyme's active site?
Converting the enzyme to receive a different substrate
Binding the substrate to the enzyme
Preventing the substrate from entering the chemical reaction
Changing the enzyme itself
The table below shows three enzymes found in human body, and the temperature of their locations.
How would a fever of 104°F most likely affect the activity of these enzymes?
It would cause the enzyme to adapt to the new temperature.
It could slow or stop enzyme function.
it will change the genetic code of the enzyme
It would increase enzyme activity to fight the infection off faster
The enzyme ptyalin helps digest carbohydrates, while the enzyme pepsin helps digest proteins. What prevents ptyalin and pepsin from digesting the same type of food?
One is a protein and the other is a carbohydrate.
They require a different number of molecules to react.
They have the same amino acids chain.
They have different shapes
What best describes the optimal conditions of the graphs below?
A
B
C
D
Structures specific in plant cells but not in animal cells include
Select all that apply
the cell membrane
the cytoplasm
a large central vacuole
the mitochondria
Which of the following is true of the nucleus?
The nucleus is considered the power house of the cell.
The nucleus contains the cell's DNA.
All cells have a nucleus.
All of the above
Which structure determines what molecules can enter and leave the cell?
the nucleus
the plasma membrane
the cell wall
the ribosome
cell membrane
controls movement of substances into and out of the cell
Transports proteins
Source of energy for the cell
cytoplasm
Synthesizes proteins
Synthesizes lipids
cell's liquid
ribosomes
Synthesizes proteins
Transports proteins
controls movement of substances into and out of the cell
mitocondria
Synthesizes lipids
Source of energy for the cell
Transports proteins
Smooth ER
Synthesizes lipids
Transports proteins
Synthesizes proteins
Rough ER
controls movement of substances into and out of the cell
cell's liquid
Transports proteins
Your heart requires large amounts of ATP in order to keep beating continuously. What organelle would you expect to find in large quantities in a heart?
Mitochondria
Chloroplast
Ribosome
Rough ER
Based on the diagrams, which organism(s) are prokaryotic and why? Note: Cells are not to scale.
Organism 1 only because it is surrounded in cilia
Organisms 2 and 3 only, because both use flagella.
Organism 3 only, because the DNA is not contained in a nucleus.
Organisms 1, 2, and 3 because they are all single-celled.
What is common to all cells?
All cells have a nucleus
All cells are photosynthetic
All cells have a cell wall
All cells divide to form new cells
What is the job of the cell membrane?
(a)
Which best describes passive transport?
Low to high, no energy needed
Low to high, uses energy
High to low, no energy needed
High to love, uses energy
What is an example of passive transport?
Diffusion
Facilitated Diffusion
Osmosis
Active Transport
What is the difference between osmosis and diffusion?
(a)
Which one is correct?
hypertonic (c)
Hypotonic (a)
What parts make a phospolipid bilayer. select all that apply
Nucleic acids
carboydrates
Proteins
lipids
select the following answers that support Active Transport
Moves molecules from high to low
requires energy
needs a protein to facilitate
Moves molecules from low to high
Moves molecules from low to high, requires energy, needs a protein to facilitate
Which direction will molicule B move if its going through passive transport
more of B will move out of the cell
more of B will move in the cell
B will not move
Which number is correctly paired with its organelle
1 - ribosome
2 - endoplasmic reticulum
3 - chloroplast
None of the above are correct
Order the following levels of human organization from largest to smallest.
Organs, Organ Systems, Organism, Tissues, Organelles,Cells
(a)
The cell membrane is said to be _______. meaning it only allows certain molecules to pass and others cannot
Comprehensivy permeable
Selectively permeable
Collectively permeable
Non permeable
In which direction do particles in a solution move during facilitated diffusion?
From right to left
From left to right
From higher to lower areas of concentration
From lower to higher areas of concentration
A researcher places a collection of unknown cells into a hypertonic solution. After several minutes she noticed that the center of the cells shrunk but the outer part of the cell maintained it's starting shape. What type of cell was she looking at?
Plant cell
Virus
Bacteria cell
Animal cell
Identify the type of cell shown below. Select all that apply
Plant
Animal
Eukaryotic
Bacteria
The movement of (a) causes a cell to change size.
The basic building blocks of a carbohydrates are
amino acids
monosaccharides
fats
hormones
Select all processes that plant cells can do
Lactic acid fermintation
Photosynthesis
Cell respiration
Which substance is an inorganic molecule?
fat
starch
DNA
water
What is the primary reason why plants use sunlight?
They use it to get warmer
They use it to make oxygen
They use it to make glucose
they use it to make carbon dioxide
What are the reactants of photosynthesis?
Water
Carbon dioxide
Sunlight
Glucose
What are the products of photosynthesis?
Water
carbon dioxide
Glucose
Oxygen
What are the reactants of cellular respiration?
Water
Carbon dioxide
Glucose
Oxygen
What are the products of cellular respiration?
Water
ATP
Carbon dioxide
Sunlight
Which types of organisms need to consume food for energy?
Autotrophs
Heterothrophs
Which types of organisms can make there own food using energy from the envrionment?
Autotrophs
Heterothrophs
What types of organisms can complete the process of photosynthesis?
Autotrophs
Heterothrophs
What types of organisms can complete the process of cellular respiration?
Autotrophs
Heterothrophs
What is the goal of cellular respiration?
(a)
Where is energy stored in molecules?
(a)
Integumentary
skin, hair, sweat glands, nails
Bones, cartilage, ligaments
Skeletal muscles and tendons
Skeletal
Bones, cartilage, ligaments
Brain, spinal cord, nerves, sense organs
Skeletal muscles and tendons
Muscular
Heart, blood, blood vessels
Skeletal muscles and tendons
Teeth, tongue, esphagus, stomach, intestines, liver
Nervous
Brain, spinal cord, nerves, sense organs
Pituitary, thyroid and adrenal glands, pancrease, gonads
skin, hair, sweat glands, nails
Endocrine
Spleen, tonsils, lymphatic vessels
Pituitary, thyroid and adrenal glands, pancrease, gonads
Teeth, tongue, esphagus, stomach, intestines, liver
Circulatory
Heart, blood, blood vessels
Nasal cavitites, sinuses, larynx, trachea, bronchi, lungs, alveoli
Pituitary, thyroid and adrenal glands, pancrease, gonads
Immune
Spleen, tonsils, lymphatic vessels
Teeth, tongue, esphagus, stomach, intestines, liver
Nasal cavitites, sinuses, larynx, trachea, bronchi, lungs, alveoli
Digestive
Ovaries, fallopian tubes, uterus, vagina
Teeth, tongue, esphagus, stomach, intestines, liver
Pituitary, thyroid and adrenal glands, pancrease, gonads
Urinary
Heart, blood, blood vessels
Kidneys, urters, bladder, urethra
pleen, tonsils, lymphatic vessels
Female Reproductive
Ovaries, fallopian tubes, uterus, vagina
Kidneys, urters, bladder, urethra
skin, hair, sweat glands, nails
Male Reproductive
Teeth, tongue, esphagus, stomach, intestines, liver
Spleen, tonsils, lymphatic vessels
Testes, epididymides, vans deferens, seminal vesicles, prostate, penis
All living organisms contain cells
True
False
Alls cells look the same
True
False
All cells have the same job
False
True
All cells within a single organism are the exactly same
True
False
A student designed an experiment to determine if the amount of water had an effect on the rate of photosynthesis in pea plants.
Which tool is correctly paired with a procedure that could be used during this experiment?
a triple beam balance to measure the height of each plant
a graduated cylinder to measure 15 mL of water for each plant daily
a metric ruler to determine the mass of each plant each week
a test tube to measure the approximate volume of fluid used on each plant
The relatively stable internal environment of all organisms is known as
Homeostasis
Matter
Entropy
Organelles
Students prepared four models of cells by using dialysis tubing containing the same blue solution. Each of the model cells originally weighed 10 grams. They then placed each model cell in a beaker containing a different concentration of water. After 24 hours, they recorded the mass of the model cells as shown in the data table below.
What was the concentration of water that was hypertonic to the original cell?
100%
90%
80%
70%
A cube cut from a potato is placed in a beaker of distilled water. The potato cells have a relatively high concentration of starch and a relatively low concentration of water. What change would you expect to see in the potato cells?
The potato cells will lose volume as water leaves the cell
The potato cell will grow as more starch enters the cell
The potato cells will shrink as starch leaves the cell
The potato cells will gain volume as water enters the cell
The human stomach needs to maintain a pH level between 1 and 2 in order to properly digest food.
What is true regarding the environment of the human stomach?
It is acidic.
It is neutral.
It is basic.
It can switch between being basic and acidic.
A biological macromolecule is made up of glycerol and fatty acids.
Based on that information, what type of molecule is this?
lipid
Carbohydrate
protein
Nucleic acid
Which label correctly identifies what X represents in the concept map?
autotrophic cell
nucleus
chromosome
heterotrophic cell
What is a step-by-step process used to conduct an experiment or investigation called?
hypothesis
Scientific Method
Data
Analyze
When you work with laboratory chemicals and bunsen burners, long hair must be
cut off
kept out of the way by wearing a hair tie, band, or net
held with both hands
styled nicely
What is a controlled variable?
Something that is measured
Something that you can change
Something that stays the same
All the above
Atoms are made out of smaller parts called subatomic particles.
Which of the following are parts of the atom?
Protons
Atoms
Neutrons
Electrons
Proteins, starch, and DNA are similar in that they are all
organic compounds
made of amino acids
made of simple sugars
parts of genes
A fully functioning enzyme molecule is arranged in a complex three-dimensional shape. This shape determines the
specific type of molecule it interacts with during a reaction
rate at which the enzyme breaks down during a reaction it regulates
pH of all body systems
temperature of the products of the reaction it regulates
Base your answer on the diagram below, which represents a chemical reaction that occurs in the human body, and on your knowledge of biology.
Which statement describes a characteristic of molecule Z?
Molecule Z will function best at a specific pH.
Molecule Z is composed of a string of molecular bases represented by A, T, G, and C.
Molecule Z is not specific, so this reaction can be controlled by any other chemical in the body.
Molecule Z will function at any temperature above 20°C
Arrows A, B, and C in the diagram below represent the processes necessary to make the energy stored in food available for muscle activity.
The correct sequence of processes represented by A, B, and C is
synthesis --> active transport --> excretion
diffusion --> synthesis --> active transport
digestion --> diffusion --> cellular respiration
digestion --> excretion --> cellular respiration
Correct answer:
Every single-celled organism is able to survive because it carries out
heterotrophic nutrition
autotrophic nutrition
metabolic activities
sexual reproduction
A student observers a red onion cell with a compound light microscope using low, then high power. The two views are represented below.
The best explanation for the changes observed by the student is that, when switching from low to high power, the
image is inverted and reversal
diameter of the field of view increases
slide was accidentally moved
diameter of the field of view decreases
The diagram below represents two types of carbohydrate molecules, glucose and sucrose.
(a)
The diagram below represents a lab setup. The artificial cell (dialysis tube) contains a starch solution and the beaker contains a solution of starch indicator and water. The setup is left undisturbed for twenty minutes.
Describe one observation that could be made that would confirm that water had passed through the membrane into the cell.
(a)
What organelle is this?
Mitochondria
Nucleus
Ribosome
Chloroplast
What types of cells is the above organelle found in?
Animal
Plant
Bacteria
What organelle is this?
Mitochondria
Nucleus
Ribosome
Chloroplast
What is ATP?
(a)
The production of alcohol by yeast cells is the result of
fermentation
aerobic respiration
budding
dehydration synthesis
During the process of the cellular respiration, energy is released from
carbon dioxide
oxygen atoms
water molecules
chemical bonds
Which substances is most direct source of the energy that an animal cell uses for the synthesis of material
ATP
DNA
glucose
starch
A fully functioning enzyme molecule is arranged in a complex three-dimensional shape. This shape determines the
specific type of molecule it interacts with during a reaction
rate at which the enzyme breaks down during a reaction it regulates
pH of all body systems
temperature of the products of the reaction it regulates
Which process uses light energy to combine inorganic molecules to synthesize organic molecules?
respiration
digestion
photosynthesis
decomposition
Energy from organic molecules can be stored in ATP molecules as a direct result of the process of
cellular respiration
cellular reproduction
diffusion
digestion
Maple tress and tulips are classified as autotrophs because they both
produce gametes by the process of mitosis
produce carbon dioxide and water as metabolic wastes
are able to obtain complex organic materials from the environment
are able to synthesize organic molecules from inorganic raw materials
What is similarly between all bacteria and plants?
They both have chloroplasts
They both have a nucleus
They both lack a cell wall
They are both composed of cells
Microscopic examination of an animal cell reveals the presence of a plasma membrane but no cell wall. Which additional structures would normally be present within this cell?
large vacuoles
centrioles
chloroplasts
starch grains
One differences between plant and animals cells is that animal cells is that animal cells do not have
a nucleus
chloroplasts
a cell membrane
centrioles
Eukaryotes____
do not have a nucleus
all do the process of photosynthesis
have a nucleus
are all carnivores
In single-celled organism, materials are stored primarily in
nuclei
ribosomes
mitochondria
vacuoles
Parts of the enzyme molecule that interact with a substances are called:
cofactors
reaction sites
induced fit model
active site
All of the following are true regarding cells except?
All cells have cell walls
All cells can divide to form new cells
All cells have plasma membrane
All cell have genetic material
In which direction do particles in the solution move during the passive diffusion
From higher to lower areas of concentration
From right to left
From left to right
FRom lower to higher area of concentration
Which structure are found in every living cell?
a plasma membrane and cytoplasm
chloroplasts and mitochondria
a cell wall and nucleus
centrioles and chromosomes
which of the following is not one of the functions of the smooth endoplasmic reticulum
detoxification drugs and poisons
metabolize carbohydrates
protein synthesis
lipid synthesis
Which sentence represents a hypothesis?
environmental conditions affect the pollination of plants
is water depth in a lake related to available light in the water?
A lamp, two breakers, and elodea plants are selected for the investigation
In order to be accepted, a scientific theory must be
widely tested and supported by extensive data
in line with all previous historical ideas
controversial and cause debate
based on the results of the of a single experiment
Which activity would be an appropriate first step when designing an experiment?
researching the problem, using the information from a variety of sources
reporting a conclusion based on multiple experimental trails
creating a data table to organize experimental observations
A substance with a pH of 9.5 is called
an acid
a base
water
neutral
Bacteria and humans are similar in that they both
lack cell organelles
contain genetic material
are single- celled
carry out autotrophic nutrition
The independent variable in this experiment is the
air temperature at which the corn plants were grown
amount of carbon dioxide used by the corn plants
volume of oxygen produced by the corn plants
number of the corn plants used
In a scientific investigation, after the question is defined, the next step is mostly likely
designing the experiment
identifying needs equipment
formulating a hypothesis
collection the data
Water is classified as a inorganic compound because it
does not contain carbon
contains oxygen
contains hydrogen
does not contain nitrogen
What percentage of human body is composed of inorganic material?
32%
68%
74%
25%
Leukemia isa disease of the
bone marrow
liver
islets of Langerhans
hearts
In réponse to an increasing blood glucose level, the human body will normally
store the glucose in the cell nuclei
produce a hormone that destroys the glucose
use the excess glucose to make proteins
release a hormone that lowers the blood glucose
Neurons are to neurotransmitters as endocrine glands
vitmans
hormones
enzymes
nucleic acids
The digestive system breaks carbohydrates down intr
simple sugars. This is important because
Simple sugars are required for metabolism
Sugars are required to maintain the structure of
the cell
Sugars are responsible
for all cellular
communication in the bodv
Simple sugars are not required by the brain
White blood cells are most closely associated with
which two hodv sustems?
digestive and excretory
circulatory and digestive
immune and circulatory
excretory and immune
The bones of humans most directly aid body
movement ov
absorbing excess calcium from the blood
providing an anchorage site for muscles
producing blood cells in the marrow
protecting internal organs
An immune response to a usuallv harmless
environmental
curbstance is known as
a vaccination
an antigen
an allergy
a mutation
Veins are blood vessels that
readily exchange materials between the blood
and body cells
carry blood toward the body
contain striated muscle
deliver blood to the cells of the body
A pulse
can be detected most easilv in
a vein
a capillary
a lacteal
an artery
The lack of which blood component interferes most
with the transn
ort otoxygen in humans?
platelets
whites blood cells
red blood cells
antibodies
When log muscles respond to a stimulus by movffede
the foot. the
response depends most directly on the
functioning of
nephrons
capillaries
bronchioles
neurons
The digestion of starch begins in the
mouth
gallbladder
stomach
small intestine
In humans, what happens when the breathing rate
increaces?
AY)Additional carbon dioxide will diffuse into
blood as oxygen diffuses out of the blood in the
lungs.
Additional oxygen will diffuse into the blood as
carbon dioxide diffuses out of the blood in the
lungs
Increased oxygen dissolved in the blood will
stimulate the cerebrum to slow the breathing
Oxygen from body cells will diffuse more
rapidly into red blood cells.
In humans. red bone marrow provides
an attachment site for muscle tissue
a site to trap bacteria
structural support for the body
a source of a new body cells
The diagnostic test for HIV, the virus that causes AIDS. involves testing the bloo
associated with this pathogen. Antibodies are produced when the body
synthesizes microbes
secretes specific hormones
stimulates enzyme production
detects foreign antigens
Which transport vessel is correctly paired with its
usual function?
capillary - provides a site for the exchange of
materials between the blood and body tissues
vein - produces white blood cells
C) artery - filters bacteria and dead cells from the
lymph and the blood
It may be harmful when people compete to see who
can hold their breath the longest underwater.
Without oxygen, brain cells
X) have too few mitochondria
have too much water
make too many enzymes
cannot make enough ATP
