What is the difference between Plant and Animal Cells ?
100
The movement of particles from a high concentration to a lower concentration until they are spread out evenly.
What is Diffusion?
100
Aerobic respiration.
What is the release of energy using oxygen?
100
Carbohydrates, fats and proteins.
What are the three main chemical groups that make up our foods?
100
A yellow liquid that makes up 55% of the blood.
What is plasma?
200
The production of Energy
What is the function of the Mitochondria?
200
Osmosis.
What is the movement of solute molecules (water) from a low solute concentration to a high solute concentration through a selectively-permeable membrane?
200
By lowering the Diaphragm and extending the ribs.
How does air enter the lungs?
200
Saturated fats and tran-fats.
Which fats are thought less healthy (and come from animals and processed foods)
200
Haemoglobin.
What is the red pigment in the Red blood cells that carries the oxygen?
300
Because the wavelength of an electron is so much small than light.
Why does the electron microscope see so much more detail in the cell?
300
Turgidity.
What is the process that allows water to pass into a plant vacuole to produce a pressure against the cell wall.
300
Carbon dioxide and water.
What are the products of respiration?
300
A disease due to lack of vitamin C
What is Scurvy?
300
A coronary heart attack or a stroke?
What is the result of a thrombosis in the heart or the brain?
400
The production of proteins.
What happens in the ribosomes?
400
If a cell (like a red blood cell) is placed in distilled water, the water will pass into the cell by osmosis, and the cell will burst.
What is haemolysis?
400
Through the alveolar wall by diffusion
How does oxygen enter the blood?
400
To prevent food entering the trachea.
Why is the epiglottis important?
400
Lymphocytes and Phagocytes.
What are the two main white blood cells involved in fighting disease?
500
10μm
What is the average size of a cell?
500
When a cell must take in a substance against a concentration gradient? (i.e. when the substance they need to enter the cell is a at a lower concentration outside the cell, than inside)
What is active transport?
500
The level of Carbon dioxide in the blood
What makes you breathe faster and deeper when you exercise?
500
To absorb the water from the undigested food before it is defecated.
What is the function of the colon?
500
Involved in clotting the blood.
What is the role of platelets and fibrinogen in the blood?