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41 Cards in this Set

  • Front
  • Back

What are the 3 components of blood and what are they suspended in?

White blood cells; Red blood cells; Platelets and they're suspended in plasma

What else does blood plasma transport?

Waste carbon dioxide; urea and small soluble products of digestion.

What do red blood cells carry?


What is the red pigment called in red blood cells and what does it do?

Haemoglobin binds to oxygen.

When haemoglobin binds to oxygen it creates ______________?


True or False: White blood cells are smaller than red blood cells?

False ~ They're bigger

True or False: White blood cells have a nucleus.


What do white blood cells do?

They are a form of antibody and protect the body from microorganisms.

What are platelets?

They're fragments of cells that help blood to clot.

What are the three different types of blood vessels?

Arteries, veins and capillaries

Do arteries carry blood to or from the the heart.

From the heart ~ A = away

Do veins carry blood to or from the the heart.

To the heart

Give 3 qualities of arteries.

- Thick muscular walls

- High pressure

- Small lumin

Give 3 qualities of veins.

- Thin walls

- Often have valves

- Large lumins

Give 3 qualities of capillaries.

- Single cell walls

- Tiny vessel

- Narrow lumin

What do valves prevent?

Backflow of blood. Ensuring blood flows in the right direction.

What type of circulatory system do humans have.

Double circulatory system

How do substances move between the two circulatory systems?

They diffuse in and out of the blood in the capillaries.

What are the arteries around the heart called?

Coronary arteries

What are the top chambers of the heart called?

Atria (Left and right atrium)

Deoxygenated blood enters which atrium of the heart? Via

Right atrium ~ Vena Cava artery

Deoxygenated blood enters which atrium and from which artey?

Right atrium ~ Vena Cava artery

Oxygenated blood enters which atrium and comes from which vein?

Left atrium ~ Pulmonary Vein

Deoxygenated blood leaves via which artey?

Pulmonary Artey

Oxygenated blood leaves via which artery?

Aorta Artery

What can cause coronary heart disease?

When the arteries are narrowed by a build up on fatty deposits.

What do doctors do to help stop coronary heart disease?

Stents ~ A metal mesh inserted into the artery to widen it.

What drugs are used to help cardiovascular disease?


What is a artificial pacemaker?

A small electrical device that is used to correct irregularities in the heart rate.

If heart valves are damaged what can they be replaced by?

Biological or mechanical valves

Where are your lungs?

In your chest protected by the ribs.

What is your Diaphragm?

A strong sheet of muscle that separates your lung cavity from other internal organs.

Which part of the lung is used for gas exchange and why is it efficient.

Alveoli because they have a large supply of capillaries with a large surface area.

What does air enter the lungs by?

Trachea and the Bronchi

What are the two transport tissues in plants and what do they carry?

Xylem carries water and dissolved mineral ions from root to leaf.

Phloem carries dissolved food from leaves around the plant.

What is the surface tissue of a leaf called?

Epidermal Tissue

The phloem moved dissolved sugars from the leaves to the rest of the plant. What is this called?


What do plants breathe through and what are they controlled by?

Stomata controlled by guard cells.

The loss of water though the surface of a plant is known as _____________.


What environmental aspects affect transpiration in plants?

- Wind

- Temperature

- Humidity

- Light

What factors increase the rate of photosynthesis?

Heat, light, humidity, airflow