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Worksheets9 Biology Über revision
Total questions: 68
Worksheet time: 46mins
is the maintenance of a relatively stable internal environment
is the maintenance of a relatively stable external environment
the brain only
the muscles
When you are hungry, you eat.
What is the response?
hunger
eating
stomach
nerves
When your bladder is full, a signal is sent to your brain to let you know to go to the bathroom.
What is the stimulus?
the signal
full bladder
going to the bathroom
your brain
Your body is too hot. What senses your body temperature?
nerve cells
sweat cells
blood cells
muscle cells
When your glucose levels are too high, what is the appropriate response?
urinate
release glucagon
eat sugar
release insulin
According to the model, what is a normal blood glucose (sugar) level?
270 mg/100mL
180 mg/100 mL
45 mg/100 mL
90 mg/100 mL
According to the model, what is the response to HIGH blood glucose (sugar)?
Pancreas releases insulin into blood
Pancreas releases glucagon into blood
The ability to maintain body temperature within a certain range is ...
thermodynamics
thermoregulation
thermostat
thermometer
Homeostasis allow you to keep which of the following the same:
body temperature
hair length
personality
skin colour
Which of the following is NOT a stimulus
Light
Temperature
Pain
Time
A receptor
are only found in plant cells
detects stimuli
creates stimuli
creates the response
Which of the following is NOT a real receptor
Mechanoreceptors
Photoreceptors
Chemoreceptors
Tastereceptors
Which organ is represented by letter B?
Brain
Spinal Cord
Nerves
Which organ is represented by letter A?
Brain
Spinal Cord
Nerves
Which of the following are the correct sequence of voluntary action?
Stimulus --> Receptor --> Spinal cord --> Effector --> Response
Stimulus --> Receptor --> Brain --> Effector --> Response
Stimulus --> Effector --> Brain --> Receptor --> Response
Stimulus --> Effector --> Spinal cord --> Receptor --> Response
Hormones are released from ____.
glands
Na and K channels
receptors
impulses
neuro-transmitters
Which statement best describes an immune response?
It always produces antibiotics.
It usually involves the recognition and destruction of pathogens.
It stimulates asexual reproduction and resistance in pathogens.
It releases red blood cells that destroy parasites.
Identify #1
antigen
antibody
white blood cell
chuck norris
Identify #3
antigen
antibody
white blood cell
pathogen
Which of the following is true about vaccines?
they treat bacterial infections
they are the same as antibiotics
their purpose is for your body to create antibodies against a pathogen before getting infected with it
they are only effective against fungi
Tears are what line of defence?
2nd
1st
3rd
4th
What is the function of a phagocyte?
To engulf (eat) infected cells
To produce white blood cells
To kill bacteria
To defend the body
Name three chemicals secreted by the first line of defence
Sweat
Tears
Pus
Ear wax
The 1st and 2nd line of defence provice...
Specific immunity
non-specific immunity
What are the two parts of the nervous system?
Central nervous system
Brain
Senses
Peripheral nervous system
Hormones are
email messages
chemical messages
voicemail messages
chemical markers
In a neuron, impulses move
from dendrite to axon
from cell body to dendrite
from axon to cell body
Carries nerve impulses to muscles or glands
sensory neurons
motor neurons
Gathers info that is happening in and around your body
motor neurons
sensory neurons
What is the job of your endocrine system?
To control the body using electrical signals
To bring oxygen into the body
To pump blood from the heart
To send chemical messages called hormones
Groups of cells that release hormones are called
Organs
Tissues
Glands
Organ Systems
How do your nervous and muscular systems interact?
The brain sends messages telling muscles to contract
Your skull protects your brain
They don't interact
The brain supplies oxygen to muscle cells
How do hormones get to different parts of your body?
They float through air
They don't travel to different parts of your body
They travel in your blood.
They are carried by nerve cells
Infectious diseases are caused by _________ in the body.
pathogens
decomposers
Which sequence represents the correct order that a molecule of urea will pass through in the urinary system?
Bowman’s capsule, nephronic tubules, collecting duct, ureter, bladder, urethra
glomerulus, Bowman’s capsule, nephronic tubules, collecting duct, ureter, bladder, urethra
glomerulus, Bowman’s capsule, nephronic tubules, collecting duct, urethra, bladder, ureter
Bowman’s capsule, glomerulus, nephronic tubules, ureter, collecting duct, bladder, urethra
Small filtering structure found in the kidneys that removes wastes from blood and makes urine.
epiglottis
nephrons
ureters
peristalsis
Use the above diagram to answer the next question. Water can be reabsorbed into the blood from the three structures labeled:
1, 3 and 9
1, 6 and 8
3, 5 and 8
5, 6 and 9
The first step of urine formation is ...
Reabsorption
Augmentation
Filtration
Urination
Vaccines stimulate your body to produce _____________
viruses
antigens
antibodies
pathogens
The green circle represents a/an
vaccine
immune cell
antibody
antigen
________________ are proteins that destroy antigens/pathogens.
antibodies
cells
viruses
vaccines
This system learns about different pathogens over time. It takes longer to respond and has specific responses for different types of pathogens
innate immune system
adaptive immune system
Why does the Adaptive Immune System keep a memory of the pathogens they fight off, but Innate System does not?
Adaptive immunity is present at birth and needs to keep a memory of these pathogens over time, but Innate immunity is temporary so it does not a memory of pathogens.
Adaptive immunity is short lived, it keeps a memory of pathogens for future reference, whereas Innate immunity is present at birth so it does not need to keep a memory.
Innate immunity does not fight off pathogens so it cannot keep a record, while Adaptive immunity only fights off pathogens, therefore needing to keep a memory of them.
Adaptive immunity is faster to respond to threats and infections than the innate immune response
True
False
Sometimes true
Sometimes false
The white blood cells that produce antibodies are T cells.
True
False
During a secondary exposure to a pathogen the immune system will:
React slowly
Produce few antibodies due to fatigue from the first infection
React more quickly and produce a greater number of antibodies
Act the same as the primary exposure
Mike is exercising and carbon dioxide is building up in his blood. This is detected by chemoreceptors in his blood vessels which send a message to the hypothalamus in the brain. This signals the heart rate and breathing rate to increase. What is the receptor?
Hypothalamus
Increase in carbon dioxide in the blood
Chemoreceptors
Increase in heart and breathing rate
In the stimulus-response model, recall which part performs the body's response.
Control Centre
Receptors
Effectors
Stimulus
Response
Which of the following detects a change in the internal environment?
Control Centre
Receptors
Effectors
Stimulus
Response
Things in the human body that need to stay the same
Glucose
Temperature
Blood Pressure
All of the above
Negative feedback is when changes occurring,
return the body to the original condition
return the body to a different condition
make the body feel bad
make the body move
This graph shows an example of...
Blood sugar regulation
Homeostasis
Negative feedback
Positive feedback
What is phagocytosis?
WBCs
When a cells eat other cells
When a cell collapses
When a cell releases nutrients
What do memory lymphocytes do?
Kills the virus
Eats the virus
Patrol the area and make the immune system work faster next time.
Makes antibodies
What are two examples of chemical barriers?
Lysozyme enzyme in our tears
Skin
White Blood Cells
Stomach Acid
What is the molecule located on the outside of a pathogen that the immune system recognizes?
Lymphocyte
Antigen
Pathogen
Inflammation
When we have a vaccine which of the following happens?
lymphocytes in the body are destroyed by the vaccine
the weakened pathogen in the vaccine causes us to become ill
lymphocytes in the body are activated and memory lymphocytes are produced
lymphocytes in the body quickly produce antibodies
Muscles and glands are also called an ....... because they give respond after the stimuli are processed
receptor
sensor
effector
sensory
