NEW
Font size
WorksheetsScience 8: Biology Unit Review
Total questions: 70
Worksheet time: 53mins
Which of the following can be pathogens?
Bacteria only
Viruses only
Bacteria and viruses
Neither bacteria or viruses
Which pathogen is treated with antibiotics?
virus
bacteria
parasite
fungi
A microbe that can cause harm is known as a
Pathogen
Pathogon
Virus
Bacteria
A disease that is widespread throughout the globe (world)
pandemic
epidemic
endemic
outbreak
According to the cell theory...
All cells have cell walls
Cells can arise spontaneously
The cell is the basic unit of structure in organisms
All cells have a nucleus
Which apparatus is needed to observe most cells?
a microphone
a microscope
a micrograph
a micrometre
What is the role of the nucleus of the cell?
Contains DNA
It is the eye of the cell
Controls the movement of the cell
It controls the movement of substances across the cell membrane
Which organelle is only found in plant cells and allows the plant to photosynthesise its own food using the energy of sunlight as a catalyst?
Vacuole
Nucleus
Cytoplasm
Chloroplast
The organism containing only a single cell is called
unicellular organism
multicellular organism
organelle
all of the above
Within each cell there are a number of specialized structures called __________________ that carry out specific functions.
Organelles
Roots
Fermenters
Fibres
plant cells and animal cells have the exact same structures.
True
False
This structure is known as the "Powerhouse" in the cell.
Mitochondria
Nucleus
Cell wall
Cell membrane
These structures can be found in a plant cell but NOT in an animal cell.
Chloroplasts & Nucleus
Mitochondria & Chloroplasts
Chloroplasts & Cell wall
Cell wall & Vacuoles
What is the function of a plant's roots?
make new seeds
make food
carry nutrients and water to other plarts of the plant
hold the plant in place and absorb water
The basic unit of life, microscopic in size, organisms can be single or multi
organs
tissue
cells
structures
Ability to reproduce is necessary to be considered a living thing.
True
False
Animals have a certain process for gathering energy from the sun called photosynthesis.
True
False
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
Green part of plant where photosynthesis occurs
Glucose
Carbon dioxide
Chloroplast
Product
H2O, reactant of photosynthesis taken in through the roots
Xylem
roots
Oxygen
water
CO2, reactant of photosynthesis
chemical energy
Chloroplast
Carbon dioxide
radiant energy
underground organ in plants that absorbs water and minerals
water
roots
xylem
Stomata
Plants use the sun's energy to convert water and carbon dioxide into sugars(glucose)
chloroplast
chemical energy
chlorphyll
photosynthesis
O2, product of photosynthesis
carbon dioxide
xylem
water
oxygen
C6H12O6, A simple sugar that is an important source of energy.
glucose
reactant
roots
stomata
6H₂O + 6CO₂ + Light Energy → C₆H₁₂O₆+ 6O₂
carbon dioxide
chemical energy
chloroplast
formula for photosynthesis
Which type of micro-organism is:
- single-cellular
- found nearly everywhere on Earth
- found in the human body
- among the first life forms on Earth
Algae
Bacteria
Fungi
Protozoa
Viruses
Which type of micro-organisms:
- includes yeast and moulds
- can form symbiotic and parasitic relations with other organisms
algao
bacteria
fungi
protozoa
viruses
Which type of micro-organism:
- are single-cellular
- come in many different shapes and sizes
- live in a wide variety of moist environments
- is an amoeba (which can change shape)
algae
bacteria
fungi
protozoa
viruses
Which type of micro-organism:
- is sub-microscopic
- can only replicate inside the cells of an organism
- can infect all life forms, including other micro-organisms
algae
bacteria
fungi
protozoa
viruses
Definition of prokaryotic cells
Cells that DO NOT have membrane-bound structures
Cells that DO have membrane-bound structures
cells WITH a nucleus
I have no idea what prokaryotic cells are
A virus cannot exist without a _______.
host
nucleus
microbe
another virus
True or False: Bacteria are living organisms.
True
False
Method used to PREVENT a virus
antibiotics
antifungal
vaccine
antiparasitic
Used to treat bacterial infection
antibiotic
antifungal
vaccine
antiparasitic
What is an antibiotic?
The identification of an illness or other problem by examination of the medical evidence.
A medicine that limits the growth of or destroys microorganisms.
An overall feeling of tiredness.
The period between exposure to an infection and the appearance of the first symptoms.
Common cold is an example of which agent?
microorganism
fungus
bacteria
virus
A molecule that the immune system recognizes either as part of the body or as coming from outside the body:
Antigen
Antibodies
Antibiotics
Antipaths
The body's ability to destroy pathogens before they can cause disease is called:
Tolerance
Immunity
Vaccine
Inflammatory response
Which of the following is a way to spread infectious diseases?
Touching contaminated objects
Not washing hands regularly
Being near infected people
All of these are ways
When the body encounters a pathogen, antibodies are created that are specific to that pathogen. The next time the body encounters the pathogen, the response will be:
Slower
Faster
One of your body's first defense against an incoming pathogen is/are
white blood cells
your skin
red blood cells
antibiotics
Viruses need to invade a cell in order to reproduce and make more of the virus. True or false?
TRUE
FALSE
T or F - Vaccines work by directly attacking the disease.
true
false
Why might you become ill after visiting a friend who is sick with the flu?
The room your friend was in was too warm.
You ate the same kind of food your friend ate.
You did not dress properly.
The virus that causes the flu entered your body.
Which system has the primary function of fighting disease?
circulatory
integumentary
immune
respiratory
One of the most important functions of the skin is to
carry food to body cells.
protect the body.
help the body move.
let food into the body.
True or False: E. coli is a virus
true
false
What does this image represent?
eukaryotic- no nucleus present
eukaryotic- nucleus present
prokaryotic- nucleus present
prokaryotic- no nucleus present
Viruses only reproduce
inside a living cell called the
skin
nose
environment
host
Bacteria are decomposers that cause decay.
Decomposers are organisms that...
break down alive organisms and return them to the soil
break down dead organisms and return them to the soil
break down dead organisms and return them to the the sun
none of the above
Where are bacteria located?
only in the water
everywhere
only on my hands.
When disease spreads to a great number of people in a short time.
pandemic
outbreak
epidemic
