Team 1
This is the liquid, straw-colored portion of blood that makes up about 55% of its volume.
A) Cytoplasm
B) Serum
C) Plasma
D) Lymph
C) Plasma
These blood vessels are the smallest and thinnest, where the exchange of oxygen and carbon dioxide happens.
A) Arteries
B) Veins
C) Capillaries
D) Aortas
C) Capillaries
Blood transports this gas from the lungs to the body's cells.
A) Carbon Dioxide
B) Oxygen
C) Nitrogen
D) Water Vapor
B) Oxygen
In a diagram of a centrifuged blood sample, which component would be found at the very bottom?
A) Red Blood Cells
B) White Blood Cells
C) Platelets
D) Plasma
A) Red Blood Cells
The surge of blood through an artery that you can feel is called your...
A) Heart rate
B) Pulse
C) Plasma flow
D) Circulation
B) Pulse
These vessels carry blood away from the heart and have thick, muscular walls.
A) Arteries
B) Veins
C) Capillaries
D) Valves
A) Arteries
These cell fragments are essential for helping your blood to clot when you get a cut.
A) Red Blood Cells
B) White Blood Cells
C) Platelets
D) Antibodies
C) Platelets
This common disorder is caused by a build-up of fatty plaque, narrowing and hardening the arteries.
A) Leukaemia
B) Atherosclerosis
C) Haemophilia
D) Anaemia
B) Atherosclerosis
You can typically feel your pulse on your wrist and which other location?
A) Elbow
B) Neck
C) Ankle
D) Knee
B) Neck
Blood carries waste products, like urea and carbon dioxide, to these organs for removal.
A) Heart and Lungs
B) Kidneys and Liver
C) Stomach and Intestines
D) Brain and Spine
B) Kidneys and Liver
What is the common term for the number of heartbeats per minute?
A) Breathing Rate
B) Heart Rate (or Pulse Rate)
C) Clotting Rate
D) Circulation Rate
B) Heart Rate (or Pulse Rate)
Besides oxygen, what does blood pick up from the small intestine to transport to cells?
A) Water
B) Waste
C) Nutrients (from digested food)
D) Platelets
C) Nutrients (from digested food)
This protein inside red blood cells binds with oxygen to carry it around the body.
A) Antibody
B) Haemoglobin
C) Platelet
D) Plasma
B) Haemoglobin
These vessels carry blood back to the heart and contain valves to prevent backflow.
A) Arteries
B) Veins
C) Capillaries
D) Arterioles
B) Veins
A person with this genetic disorder has blood that does not clot properly.
A) Anaemia
B) Leukaemia
C) Haemophilia
D) Atherosclerosis
C) Haemophilia
A person who feels tired and weak may have this condition, where their blood has a reduced capacity to carry oxygen.
A) Anaemia
B) Leukaemia
C) Haemophilia
D) Atherosclerosis
A) Anaemia
After exercise, your heart rate increases. What is the direct reason for this?
A) To pump more blood to your stomach
B) To deliver more oxygen to your muscles for energy
C) To remove less carbon dioxide
D) To make your breathing slower
B) To deliver more oxygen to your muscles for energy
What structural feature do veins have that arteries lack, to assist their low-pressure function?
A) Thick muscular walls
B) Valves
C) A large lumen
D) A nucleus
B) Valves
Unlike red blood cells, these larger defenders have a nucleus and protect the body from infection.
A) Platelets
B) White Blood Cells
C) Capillaries
D) Hormones
B) White Blood Cells
Some white blood cells produce these substances that attach to and mark bacteria for destruction.
A) Hormones
B) Pathogens
C) Antibodies
D) Platelets
C) Antibodies
Blood is classified as a "fluid tissue." Which of the following is NOT a vital function of this tissue?
A) Transporting oxygen and nutrients
B) Clotting to prevent blood loss
C) Fighting infections and diseases
D) Sending electrical signals to the brain
D) Sending electrical signals to the brain
In a microscope activity, you are asked to label a nucleus. Which blood cell would definitely have one?
A) Red Blood Cell
B) White Blood Cell
C) Platelet
D) All of the above
B) White Blood Cell
According to the investigation, what was the dependent variable when testing heart rate and exercise?
A) The type of exercise
B) The person doing the exercise
C) The pulse rate/heart rate
D) The time of day
C) The pulse rate/heart rate
Why are the walls of capillaries only one cell thick?
A) To allow for fast and efficient diffusion of materials
B) To withstand high blood pressure from the heart
C) To prevent the backflow of blood
D) To produce antibodies
A) To allow for fast and efficient diffusion of materials
The biconcave shape of red blood cells is a key adaptation. What is its main purpose?
A) To help them fight disease
B) To increase surface area for oxygen absorption
C) To make them flexible for clotting
D) To produce antibodies
B) To increase surface area for oxygen absorption