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Worksheets❓ BIOLOGY REVIEW - 2D - 1
Total questions: 153
Worksheet time: 1hrs 26mins
Which is NOT a characteristic of living things?
they grow and reproduce
they detect and respond to changes in the environment
they require energy and produce waste
they are not always made of cells
________ are the basic unit of structure and function of living things.
proteins
cells
nucleotides
organs
Which is part of cell theory listed below is FALSE?
All living things are composed of many/multiple cells
All cells come from pre-existing cells
The cell is the basic unit of life
Which of the following is NOT a feature of Prokaryotic cells?
They have no nucleus, just a nucleoid region with DNA
They are smaller in size (1-5 um)
they lack (do not have) membrane-bound organelles)
Usually have cell walls
Which of the following is NOT a feature of Eukaryotic cells?
Nucleus
Membrane-bound organelles
Smaller in size (1-5 um)
Some have cell walls while others do not
Prokaryotic means:
"true" nucleus
"before" nucleus
Eukaryotic means:
"true" nucleus
"before" nucleus
Both plant and animal cells are prokaryotic.
True
False
Prokaryotic organisms are unicellular.
True
False
What is the Endoplasmic Reticulum?
is the packaging system of the cell
transport system; pathways that move proteins/materials around the cell
responsible for the absorption of light to provide energy
is a jelly/fluid like substance that fills a cell
Where is the Rough Endoplasmic Reticulum?
Where is the Nucleus?
Where is the Smooth Endoplasmic Reticulum??
Where is the Centrosome (made of centrioles)?
Where is the Golgi Body?
Where is the Cell Membrane?
Identify a Mitochondrion.
Identify a Lysosome.
Where is the cytoplasm?
What is the Cell Membrane?
is the packaging system of the cell
regulates what enters and leaves the cell
responsible for the absorption of light to provide energy
is a fluid like substance that fills a cell.
What is the Chloroplast?
is the packaging system of the cell
The membrane surrounding the cytoplasm of a cell.
sites of photosynthesis
is a fluid like substance that fills a cell.
What is the Cytoplasm?
is the packaging system of the cell
The membrane surrounding the cytoplasm of a cell.
responsible for the absorption of light to provide energy
is a fluid like substance that fills a cell.
What is the Golgi Apparatus?
packages substances for the cell
involved in secretion and intracellular transport.
responsible for the absorption of light to provide energy
is a fluid like substance that fills a cell.
What is the Lysosome?
is the packaging system of the cell
involved in secretion and intracellular transport.
can digest the food, or even break down the cell parts
is a fluid like substance that fills a cell.
What is the Nucleus?
control centre of cell activities (i.e. eating, reproduction of cell)
involved in secretion and intracellular transport.
can digest the food, or even break down the cell parts
Where processes of respiration and energy production occur.
What is the Mitochondria?
controls the eating, movement, and reproduction of thecell
involved in secretion and intracellular transport.
can digest the food, or even break down the cell parts
Where processes of respiration and energy production occur.
What is the Ribosome?
control centre of the cell
are the protein builders and synthesizers of the cell
can digest the food, or even break down the cell parts
Where processes of respiration and energy production occur.
What is the Vacuole?
controls the eating, movement, and reproduction of thecell
are the protein builders and synthesizers of the cell
can digest the food, or even break down the cell parts
store water, food and nutrients that the cell needs to survive
All cells have a cell membrane
True
False
keeps all of the organelles inside of the cell and regulates materials in/out of cell:
Mitochondria
Cholorplasts
Nucleus
Cell membrane
are only found in plant cells
Mitochondria
Cholorplasts
Nucleus
Cell membrane
are the food producers of the cell, making sugars and starches
Mitochondria
Chloroplasts
Nucleus
Cell membrane
use a process called photosynthesis that uses the energy from the sun to create sugar
Mitochondria
Chloroplasts
Nucleus
Cell membrane
acts like the brain of the cell
Mitochondria
Chloroplasts
Nucleus
Cell membrane
create cell energy (ATP) in a process called cellular respiration
Mitochondria
Chloroplasts
Nucleus
Cell membrane
T/F: Multicellular organisms often have tissues, organs, & organ systems.
TRUE
FALSE
Unicellular means.....
no nucleus
one cell
many cells
cell wall
Cells are the building block of ?
Cell Wall
Cell membrane
lysosome
Life
What cells conduct photosynthesis
airplane cells
animal cells
plant cells
Human cells
What type of organism is this?
Unicellular
Multicellular
Plant
Bacteria
What type of organism is this?
Multicellular
Unicellular
Plant
Animal
Eukaryotic cells...
do NOT have a nucleus
always have a cell wall
are small (5 um-10 um)
have membrane bound organelles
Prokaryotic cells...
do NOT have a nucleus
have no cell wall
are large (5 um-100 um)
have membrane bound organelles
DNA is stored as...
strings
blobs
chromosomes
membranes
The rough endoplasmic reticulum _________ while the smooth endoplasmic reticulum ______________.
does not have ribosomes, has ribosomes
has ribosomes, does not have ribosomes
Cellular respiration:
glucose + carbon dioxide -> oxygen + ATP + water
glucose + water -> oxygen + ATP + carbon dioxide
glucose + oxygen -> carbon dioxide + ATP + water
none of the above
Photosynthesis:
carbon dioxide + water + light energy -> oxygen + glucose
carbon dioxide + water -> oxygen + glucose + light energy
glucose + oxygen -> carbon dioxide + ATP + water
none of the above
What does DNA stand for?
Dichromatic Nitrogen Arsenic
Deoxyribulin Acidosis
Dental Notice Associate
Deoxyribonucleic acid
Centrioles (part of the centrosome) do what?
produce spiderwebs
produce proteins
produce mucus
produce spindle fibres
Large vacuoles in plant cells do what?
are the site of photosynthesis
are the site of cellular respiration
store nutrients and water
all of the above
Where are cell walls located?
all animal cells
outside the cell membrane of plant cells
inside the cell membrane in plant cells
in some animal cells
Cell walls are present in:
plant cells
animal cells
both plant and animal cells
Which of the following are Eukaryotic cells?
plant cells
animal cells
both plant and animal cells
What is the purpose of cell division?
Allows for growth of organisms
Allows for repair of organisms and damaged tissues
Allows for reproduction of organisms, either sexually or asexually
All of the above
Which best describes why cells don't simply grow larger and larger?
It is energetically "expensive" to grow larger and larger
The cell will burst if it grows too large
Smaller cells allow for nutrients and wastes to diffuse more efficiently
Too much osmosis will occur, leading the cell to swell with water and burst
Diffusion is...
WATER movement from LOW solute concentration to HIGH solute concentration
SOLUTE movement from HIGH solute concentration to LOW solute concentration
WATER movement from HIGH solute concentration to LOW solute concentration
SOLUTE movement from LOW solute concentration to HIGH solute concentration
Osmosis is...
the flow of water across a semi-permeable membrane
the flow of solutes across a semi-permeable membrane
In osmosis, which direction does water flow?
from an area of HIGH SOLUTE concentration to LOW
from an area of LOW SOLUTE concentration to HIGH
In osmosis, which direction does water flow?
from an area of HIGH free WATER concentration to LOW
from an area of LOW free WATER concentration to HIGH
How do cells maximize diffusion?
large surface area
surface is thin
surface is moist
all of the above
Isotonic means:
solute concentratration in cell is SAME as extracellular environment
solute concentratration in cell is MORE than extracellular environment
solute concentratration in cell is LESS than extracellular environment
Hypertonic means:
solute concentratration in cell is SAME as extracellular environment
solute concentratration in cell is MORE than extracellular environment
solute concentratration in cell is LESS than extracellular environment
Hypotonic means:
solute concentratration in cell is SAME as extracellular environment
solute concentratration in cell is MORE than extracellular environment
solute concentratration in cell is LESS than extracellular environment
When a cell is in an ISOTONIC solution...
it will swell and possibly burst
it will have no net change
it will shrivel and shrink
When a cell is in an HYPOTONIC solution...
it will swell and possibly burst
it will have no net change
it will shrivel and shrink
When a cell is in an HYPERTONIC solution...
it will swell and possibly burst
it will have no net change
it will shrivel and shrink
How is cellular division used for growth?
the number of cells increases, and the size of cells stays the same
the number of cells stays the same, and the size of cell increases/grows
How is cellular division used for repair?
old or damaged cells are destroyed
cells in nearby area divide and replace damaged cells
the cell organelles work to repair the damaged/dead cells
How is cellular division used for ASEXUAL reproduction?
a single cell divides into 2 genetically identical unicellular individuals
Two parent gametes (sperm/egg cells) combine; offspring genetically unique
How is cellular division used for SEXUAL reproduction?
a single cell divides into 2 genetically identical unicellular individuals
Two parent gametes (sperm/egg cells) combine; offspring genetically unique
What is the longest stage of the cell cycle?
Interphase
Prophase
Anaphase
Cytokinesis
A thin-like strand of DNA found in interphase:
chromosome
chromatin
centromere
centrosomes
Structure B:
chromosome
chromatin
centromere
sister chromatids
Structure D:
chromosome
chromatin
centromere
sister chromatids
Structure C:
chromosome
chromatin
centromere
sister chromatids
During which stage does the cell split in two fully?
Interphase
Telophase
Anaphase
Cytokinesis
During which stage do the chromosomes line up at the equatorial plate of the cell?
Metaphase
Telophase
Anaphase
Prophase
What happens during telophase?
Chromatin condenses into chromosomes, nuclear envelope disappears.
Chromsomes line up in the middle of the cell.
Sister chromatids are pulled away from each other.
Nuclear envelope forms around 2 nuclei at both ends of cell.
What happens during prophase?
Chromatin condenses into chromosomes, nuclear envelope disappears.
Chromsomes line up in the middle of the cell.
Sister chromatids are pulled away from each other.
Nuclear envelope forms around 2 nuclei at both ends of cell.
What happens during anaphase?
Chromatin turns into chromosomes, nuclear env disappears.
Chromsomes line up in the middle of the cell.
Sister chromatids are pulled away from each other.
Nuclear envelope forms around 2 nuclei at both ends of cell.
What occurs during cytokinesis?
chromosome pairs separate
cytoplasm divides in half
chromosomes line up along midline of cell
chromosomes condense
During which stage does the cell duplicate its DNA?
S phase
M phase
Interphase
Anaphase
In which phase of the cell cycle is DNA in chromatin form?
Telophase
Prophase
Metaphase
Interphase
During which stage does the contractile ring pinch the cytoplasm and form two daughter cells?
Interphase
Telophase
Anaphase
Cytokinesis
Do plant and animal cells undergo cytokinesis the same?
They are identical
They are different, a cell plate develops in plant cells
They are different, in animal cells one nucleus is larger than the other
The cytoplasm divides unequally in plant cells
Do plant and animal cells both undergo mitosis?
Yes
No
In which stage do the chromosomes condense?
Prophase
Metaphase
Anaphase
Telophase
In which stage does the nucleus begin reforming?
Prophase
Metaphase
Anaphase
Telophase
In which stage do the chromosomes align at the equatorial plane?
Prophase
Metaphase
Anaphase
Telophase
In which stage do the sister chromatids separate?
Prophase
Metaphase
Anaphase
Telophase
In which stage do spindle fibres form?
Prophase
Metaphase
Anaphase
Telophase
Which stage involves the disintegration of the nuclear membrane?
Telophase
Prophase
Interphase
Metaphase
Which phase(s) of interphase involve growth?
G1
G1 + G2
S
Mitosis
In which phase do spindle fibres attach to centromeres of chromosomes?
Metaphase
Anaphase
Prophase
Telophase
In which phase do spindle fibres disintegrate?
Metaphase
Anaphase
Prophase
Telophase
Mitosis is...
Duplication of DNA
Growth of the cell
Division of the nucleus
Division of the cytoplasm and organelles
Cytokinesis is...
Duplication of DNA
Growth of the cell
Division of the nucleus
Division of the cytoplasm and organelles
This cell is in:
Metaphase
Prophase
Anaphase
Interphase
This cell is in:
Cytokinesis
Interphase
Metaphase
Prophase
This cell is in:
Cytokinesis
Interphase
Metaphase
Prophase
This cell is in:
Cytokinesis
Interphase
Metaphase
Prophase
Cell B is in:
Cytokinesis
Anaphase
Telophase
Metaphase
Cancer is ?
Uncontrolled cell division
Cells Exploding
Cells Shrinking
Cells Slowing Dying
Label "A" is what phase of the Cell Cycle?
A-Phase
Prophase
G1-Phase
G0-Phase
Does DNA replication occur during Mitosis?
Yes, during Anaphase
Maybe
Yes, during Prophase
No, replication occurs during S-Phase
If a mutation disables a cell cycle checkpoint, what will most likely happen?
One would develop special powers
The cell will replicate slower, or stop
The cell will conduct apoptosis (programmed cell death)
Cancer may develop as cells would replicate out of control
DNA replication must occur ____________ to make sure that the daughter cells have enough DNA
after a cell divides
when a cell divides
before a cell divides
in reverse
If a DNA strand has a mutation, what will happen in later copies?
those copies will revert back to the original
it will stop functioning
they will bore holes in cells
later copied strands will also have the mutation
Mutations to DNA can be...
heredetary
caused by environmental factors
both are true
What is a carcinogen?
an environmental factor that causes a mutation that results in cancer
an environmental factor that causes a mutation
a genetic factor that results in cancer
a cancer-causing cell
Which of the following is a carcinogen?
tobacco smoke
UV light
chemical solvents
all of the above
What does uncontrolled cell division result in?
healthy, functional cells
immediate death of the cell
a mass of cells that have no visible function, called tumours
Which type of tumour can spread?
benign
malignant
Which type of tumour releases damaging hormones or enzymes to surrounding cells?
benign
malignant
Which type of tumour is non-cancerous?
benign
malignant
Metastasis is:
the ability of a tumour to self-destruct
the ability of a tumour to destroy other tissues
the non-harmful nature of a tumour
the ability of a tumour to spread
All tumours are cancerous.
true
false
A fibre-optic cable with a tiny camera that allows doctors to observe abnormal growths and take small biopsies.
X-ray
endoscopy
Ultrasound
MRI
Imaging usually used for breast tissue, bones, and lungs. The radiation released from this imaging can damage DNA.
X-ray
endoscopy
Ultrasound
MRI
Imaging that uses high frequency sound to create an image. It is often used for soft tissues, such as heart and liver.
X-ray
CT scan
Ultrasound
MRI
Imaging technique that involves multiple X-ray images from different angles; can show a cross section of tumours
Endoscopy
CT scan
Ultrasound
MRI
Imaging technique where radio waves and strong magnetic field create detailed images which a computer assembles into 3D.
Endoscopy
CT scan
Ultrasound
MRI
Physical removal of a cancerous tumour.
chemotherapy
radiation therapy
surgery
biophotonics
Technique developed at University of Toronto; light energy is aimed at cancerous tissue to identify, treat & monitor
chemotherapy
radiation therapy
surgery
biophotonics
Use of drugs to shrink tumours prior to radiation therapy; often targets unwanted tissues & causes range of side effects
chemotherapy
radiation therapy
surgery
biophotonics
Ionizing radiation is administered or implanted on a tumour, damaging the DNA and cancer cells
chemotherapy
radiation therapy
surgery
biophotonics
________:undifferentiated; replicate themselves or develop into specialized cells in the body .
binary fission
gametes
cancer cells
stem cells
________ attaches to each chromosome & lines them up along the equator during Metaphase.
centrioles
centromeres
spindle fibers
telomeres
Which stage of Mitosis is pictured?
Prophase
Metaphase
Anaphase
Telophase
In mitosis, when do chromosomes start to uncoil, nuclear membrane returns, and 2 nuclei form?
Prophase
Metaphase
Anaphase
Telophase
In plant cells, cytokinesis occurs when___________ is built separating the two daughter cells.
cytokinesis
a chloroplast
a cell plate
a brick wall
Uncontrolled mitosis/cell division within somatic cells is referred to as _____________.
cancer
out of control cell growh
cells gone wild
meiosis
These types of tumors can metastasize (break-away) and spread to a new location in the body.
Benign
Angry
Apoptosis
Malignant
Which structures are listed in order from the least to most complex?
tissue, organ system, cell, organism, organ
cell, organ, organ system, tissue, organism
cell, tissue, organ, organ system, organism
organism, organ system, organ, tissue, cell
When stem cells divide and transform into cells that have a specialized function, this is called_______.
cell cycle
cell differentiation
cell proliferation
cell reproduction
How do cancer cells differ from normal cells?
Cancer cells do not form tumors.
Cancer cell divide uncontrollably.
Cancer Cells do not undergo mitosis.
Cancer cells have fewer mitochondria.
A tumor that grows in a clump, does not spread, and can be removed is called a_______________.
A benign tumor
A malignant tumor
A stagnant tumor
A malgat tumor
Embryonic stem cells can differentiate into which types of cell?
Only a few types of cells
All types of specialized cells
Only cells that can produce insulin
Only cells that can produce artificial skin
Stem cells can now be...?
harvested, grown and transformed into specialized cells
used in therapies for cancer
used in therapies for spinal cord injuries and muscle damage
All of the above
How do cells differentiate?
Different types of cells have different DNA that guide what they become
Cells all have the same DNA, but different genes get turned on/off
The organism tells cells what it needs
None of the above.
Embryonic stem cells are...
Multipotent
Always cancerous
Pleuripotent
harvested from body tissues like bone, muscle
Adult stem cells are...
Multipotent
Always cancerous
Pleuripotent
harvested from embryos
Multipotent stem cells can divide and specialize into any kind of cell
True
False
Pleuripotent stem cells can divide and specialize into any kind of cell
True
False
Stem cells have potential use in...
Cancer therapy
Organ transplants
Supplementing diseased individuals with healthy cells
All of the above
A red blood cell has no nucleus and a biconcave disk shape. This is helpful for which function?
binding oxygen
binding CO2
bending and fitting through capillaries
all of the above
A nerve cell conducts electrical signals. Which structure is helpful for this function?
a nucleus
long branching dendrites and a long axon
purple colour
mitochondria
Which structure helps a sperm cell for the function of swimming to fertilize an egg?
A nucleus
biconcave disk shape
long tail (flagellum)
hairlike structures (cilia)
Which of the following is the correct order of hierarchy in multicellular organisms?
cell > tissue > organ > organ system > organism
cell > tissue > organ system > organ > organism
cell > organ > tissue > organ system > organism
cell > tissue > organ > organism > organ system >
Which type of tissue supports, protects, and connects the body's organs?
Epithelial tissue
Connective tissue
Nerve tissue
Muscle tissue
Which type of tissue moves parts of the body?
Epithelial tissue
Connective tissue
Nerve tissue
Muscle tissue
Which type of tissue controls all body movements and functions?
Epithelial tissue
Connective tissue
Nerve tissue
Muscle tissue
Which type of tissue protects/lines inner/outer surfaces of organs, while regulating entry/exit of substances?
Epithelial tissue
Connective tissue
Nerve tissue
Muscle tissue
