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WorksheetsBiology Midterm Review
Total questions: 175
Worksheet time: 2hrs 25mins
In a covalent bond, atoms
share electrons
transfer electrons
attract water molecules to each other
do not bond
Water is a _ molecule.
nonpolar
polar
Which is the strongest acid?
ph of 1
ph of 4
ph of 7
ph of 9
Which is the wrong polymer/monomer pair?
nucleic acids : nucleotides
lipids: monosaccharides
carbohydrates: monosaccharides
proteins : amino acids
A compound is made of up
Two or more atoms
Two or more different elements
Two molecules
Water and Oxygen
This organelle controls what goes in and out of plant and animal cells.
Cell Wall
Cell Membrane
Chloroplasts
Cytoplasm
The _____________ stores food, water, wastes, and other materials in both plant and animal cells.
Vacuole
Mitochondria
Cytoplasm
Nucleus
The _____________ holds the DNA, and controls the functions of eukaryotic cells.
Nucleus
Nuclear Membrane
Mitochondria
Chloroplast
The _____________ is a gel-like fluid that fills plant and animal cells. It holds the organelles in place and gives each cell its shape.
Cytoplasm
Cell Membrane
Cell Wall
Chloroplast
What can only be found in plant cells?
Cell membrane
Vacuole
Chloroplast
Mitochondria
Cell organelles work together to maintain
homeostasis
eukarya
prokarya
organisms
Which do BOTH prokaryotes and eukaryotes contain?
nucleus
mitochondria
ribosomes
cell wall
Which does only eukaryotic cells contain?
nucleus
DNA
cell membrane
ribosomes
What is the definition of OSMOSIS?
Diffusion of water through a selectively permeable membrane
Molecular structure that surrounds the cell and controls what enters and leaves the cell
Movement of molecules across the cell membrane against the concentration gradient
Movement of molecules across the cell membrane from an area of high concentration to low concentration
What is the definition of ACTIVE TRANSPORT?
Movement of molecules across the cell membrane against the concentration gradient
Diffusion of water through a selectively permeable membrane
Molecular structure that surrounds the cell and controls what enters and leaves the cell
Movement of molecules across the cell membrane from an area of high concentration to low concentration
Identify the following structure
Phospholipid
Cell
Cell membrane
Protein
What is the name of 'A' found on the structure below
Lipid Bilayer (cell membrane)
Protein
Phosphate hydrophilic heads
Lipid hydrophobic tails
Which answer correctly describes the lipid bilayer?
lipids are hydrophobic; phosphates are hydrophobic
lipids are hydrophilic; phosphates are hydrophilic
lipids are hydrophobic; phosphates are hydrophilic
lipids are hydrophilic; phosphates are hydrophobic
Why would the cell need energy to move molecules across the membrane?
the molecule is going against the concentration gradient
the molecule is to large to pass through the membrane
the lipid membrane requires energy anytime something is moving across the membrane
In passive diffusion, substances always move...
from an area of higher concentration to an area of lower concentration
from an area with more of the molecules to an area with fewer of the molecules
from an area of lower concentration to an area of higher concentration
from an area with fewer of the molecules to an area with more of the molecules
What is the definition of FACILITATED DIFFUSION?
Movement of molecules across the cell membrane from an area of high concentration to low concentration
Diffusion of water through a selectively permeable membrane
Movement of molecules across the cell membrane against the concentration gradient
Molecular structure that surrounds the cell and controls what enters and leaves the cell
Is it safe to drink salt water?
Yum, so salty!
No, you could die of dehydration.
What is the first source of energy for living things?
food
glucose
the sun
water
What are the inputs (reactants) of photosynthesis?
glucose and oxygen
glucose and carbon dioxide
carbon dioxide and oxygen
carbon dioxide and water
Where does photosynthesis take place?
mitochondria
nucleus
chloroplast
ribosome
What organisms do photosynthesis?
animals
plants
plants and animals
all living things
What are the outputs (products) of photosynthesis?
carbon dioxide and water
glucose and oxygen
glucose and carbon dioxide
water and oxygen
What are the inputs (reactants) of cellular respiration?
carbon dioxide and water
glucose and water
carbon dioxide and oxygen
glucose and oxygen
Where does cellular respiration take place?
chloroplast
lungs
mitochondria
nucleus
What are the outputs (products) of cellular respiration?
glucose, oxygen, and energy
carbon dioxide, water, and energy
water, oxygen, and glucose
water and energy
What is an autotroph?
an organism that can makes its own food
an organism that needs to consume food
an organism that has absorbs food by diffusion
all living organisms
What organisms use cellular respiration to get energy?
animals only
plants only
heterotrophs only
plants and animals
What is a heterotroph?
an organism that absorbs food by diffusion
an organism that uses photosynthesis to make its food
an organism that needs to consume food for energy
all plants
What is the purpose of photosynthesis?
to make more plants
to convert sunlight to glucose
to convert glucose to usable energy
to change colors of leaves in the fall
What is the purpose of cellular respiration?
to convert sunlight to glucose
to breathe in oxygen and breathe out carbon dioxide
to have cells grow and develop
to convert glucose to usable energy
What is the formula for photosynthesis?
C6H12O6 + O2 --> CO2 + H2O + sunlight
Sunlight + Oxygen --> Glucose + Sunlight
CO2 + H2O + sunlight ----> C6H12O6 + O2
What is the chemical energy in the cell called?
ATP
CO2
Proteins
Cellular respiration is considered an "__________" process when it requires oxygen.
Aerobic
Anaerobic
Which statement is true?
Animals use only photosynthesis, while plants use both photosynthesis and respiration.
Animals use both photosynthesis and respiration, while plants use only respiration.
Animals use both photosynthesis and respiration, while plants use only photosynthesis.
Animals use only respiration, while plants use both photosynthesis and respiration.
What does ATP stand for?
adeline triphosphate
adenosine triphosphate
adenosine tophosphate
adenosine diphosphate
reactant + ________ -----> product + ___________.
When a cell forms a vesicle around unwanted particles and expels it OUT of the cell.
Pinocytosis
Endocytosis
Receptor-mediated
Exocytosis
A process in which cells surround and engulf substances that are TOO BIG to enter the cell is known as...
Pinocytosis
Phagocytosis
Endocytosis
Receptor-mediated
Which of the following is the first reaction in aerobic respiration?
Glycolysis
Krebs Cycle
Electron Transport Chain
Calvin Cycle
How is chemical energy released in a cell?
Forming bonds
Breaking bonds
Forming atoms
Breaking down atoms
Where does glycolysis happen?
Cell Membrane
Chloroplast
Cytoplasm
Mitochondria
Where does the electron transport chain take place?
Cell membrane
Chloroplast
Cytoplasm
Mitocchondria
Which of the following is made during the Krebs Cycle?
Carbon Dioxide
Glucose
Oxygen Gas
Water
Which part of aerobic respiration makes the most ATP?
Calvin Cyle
Electron Transport Chain
Glycolysis
Krebs Cycle
Why do plants do aerobic respiration even though they also do photosynthesis?
To prevent heterotrophs from using the glucose that plant cells made in photosynthesis.
To breathe in oxygen gas to keep their cells alive.
To use the stored chemical energy made during photosynthesis.
To balance photosynthesis and prevent too much sugar from building up in the cell.
Which of the following is the correct chemical equation for cell respiration?
6CO₂ + C₆H₁₂O₆ + 6O₂+ ATP --> H₂0
CO₂ + H₂0 + light energy in Chlorophyll ---> C₆H₁₂O₆ + 6O₂
6CO₂ + 6H₂0 + light energy in Chlorophyll ---> C₆H₁₂O₆ + 6O₂
C₆H₁₂O₆ + 6O₂ ---> 6CO₂ + 6H₂0 + ATP
What happens if you cheat on your test?
You will receive a zero
You will receive a parent phone call
You will receive a referral
ALL ARE CORRECT
Which are not allowed during your test?
Peeking eyes
Phone
Talking
ALL ARE CORRECT
When you finish your test, what is expected/acceptable for you to do?
Remain quiet and respectful towards your classmates
Begin talking to your classmates
Pencil tapping
Listen to music
Where do the stem and leaves get their green color from?
glucose
carbon dioxide
oxygen
Chlorophyll
The term "anaerobic" means :
with oxygen.
without oxygen.
alive.
nonliving.
What is the area where all living things are called?
Geosphere
Biosphere
Inner Core
Food chain
Rocks, trees, wind, and animals are all apart of the
Geosphere
Hydrosphere
Ecosystems
Food web
The area of the earth that includes rocks, mountains, crust, mantle and the inner core.
Geosphere
Atmosphere
Hydrosphere
A group of parts that work together to do a job, perform a function, or produce a result is called a
function
system
feedback
Does this diagram illustrate an open-loop or a closed-loop system?
open-loop
closed-loop
The _____ of a part of a system is its job or role within the system.
feedback
function
Is the water cycle an open-loop or a closed-loop system?
open-loop
closed-loop
In the sequence illustrated, the toast is an __________.
input
output
All systems are made up of parts that work together.
True
False
A system input is
something that happens within a system.
something that goes into a system.
something that comes out of a system.
something that is always man-made.
A system output is
something that happens within a system.
something that goes into a system.
something that comes out of a system.
something that is always man-made.
Our body working to regulate heat by shivering or sweating is an example of
input
process
output
feedback mechanism
All living things or organisms in an ecosystem are
None
biotic factors
abiotic factors
Abiotic factors are ___________.
non-living parts of an ecosystem
living parts of an ecosystem
things that once were alive, but now are dead
not important parts of ecosystems.
Which characteristic is shown in the image?
Organisms reproduce
Organisms react to stimuli
Organisms can adapt
Organisms use and obtain energy
Organisms are made up of cells
Which characteristic is shown in the image?
Organisms reproduce
Organisms react to stimuli
Organisms can adapt
Organisms use and obtain energy
Organisms are made up of cells
Which characteristic is shown in the image?
Organisms reproduce
Organisms react to stimuli
Organisms can adapt
Organisms use and obtain energy
Organisms are made up of cells
Identify the characteristic: When a dog is too hot, he will sweat through his paws and pant to cool himself down.
Reproduce
Made of cells
Share similar chemicals
Homeostasis
Which of the following converts food into energy for the cell?
vacuole
mitochondria
cytoplasm
cell membrane
The fluid that surrounds the organelles is... (hint... "Try to pull a fast one and..."
chloroplast
cytoplasm
vacuole
cell wall
Which of the following are NOT found in animal cells
chloroplasts and cytoplasm
chloroplasts and cell wall
cell wall and cell membrane
cell wall and nucleus
Small grain-shaped organelles that produce proteins for the cell
Cytoplasm
Ribosomes
Lysosomes
Mitochondria
An organelle that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another
Cell Wall
Endoplasmic Reticulum
Golgi Appartus
Cytoplasm
Organelle in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell
Golgi Apparatus
Lysosome
Endoplasmic Reticulum
Chloroplast
Which organelle produces proteins?
Ribosomes
Lysosomes
Nucleus
Vacuoles
The organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell:
Lysosome
Cytoskeleton
Golgi Apparatus
Chloroplast
What type of feedback is shown in the blood clotting model?
Positive
Negative
is the maintenance of a relatively stable internal environment
is the maintenance of a relatively stable external environment
Which type of feedback system is more common in maintaining homeostasis?
positive
negative
neutral
balanced
This feedback system amplifies a change until a desired outcome is reached.
positive feedback system
negative feedback system
neutral feedback system
self-monitoring feedback system
The feedback system that returns the body back to the normal set point.
positive
negative
neutral
returnable
What type of feedback system is described above?
positive
negative
neutral
leofied
What type of feedback system does the model represent?
positive
negative
neutral
glyogen
What is the stimulus in the model above?
body temperature
increase in body temperature
decrease in body temperature
blood vessels dilating
Earth warms → Increased evaporation which produces more clouds → More reflection of light away from Earth → Temperature falls → Rates of evaporation fall
Positive Feedback
Negative Feedback
Earth warms → Ice cover melts, exposing soil or water → More heat is absorbed by Earth’s surface → Global temperature rises → More ice melts
Positive
Negative
