2337509
Description
Flashcards by 2010mackintoshe, updated more than 1 year ago
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Created by 2010mackintoshe
over 9 years ago
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| Question | Answer |
| Which side of the heat is deoxygnated? | Right |
| Which side of the heart is oxygenated? | Left |
| What vein returns deoxgyenated blood? | Vena Cava- right side |
| The pulmonary artery carries blood to. . . | the lungs |
| The aorta carries blood to. . . | the body |
| What vein carries oxygenated blood to the heart? | Pulmonary vein-side |
| What do the valves do? | Prevent the black flow of blood (control blood flow) |
| What vessels supply oxygen to heart? | Coronary |
| What do the coronary vessels do? | supply oxygen to the blood |
| Which scientist is associated with the heart? | Harvey |
| What's Harvey's revolutionary idea? | That the heart pumps blood |
| What did people think before Harvey's idea? | That vessels in the heart were filled with air |
| How thick are capillaries? | one cell thick |
| What can happen in capillaries? | Diffusion of oxygen |
| Where is ventricles found? | bottom of the heart |
| What shape does a red blood cell have, on it's side? | biconcave shape |
| What has a biconcave shape? | A red blood cell, on it's side |
| What doesn't have a nucleus? | a red blood cell |
| What does a red blood cell do? | Carry oxygen |
| What does a white blood cell do? | Fight infections |
| What is another name for a white blood cell that fights diseases? | phagocyte |
| What does a white blood cell have? | multi-lobular nucleus |
| what cell doesn't have a distinct shape? | White blood cell |
| What does the platelets do? | clot the blood |
| what does the plamsa do | dissolves food/glucose |
| What two substances are transported in blood plasma? | Glucose/food |
| How does what enter the roots? | Osmosis |
| How does water move? | Transpiration |
| What the the little holes in the leaf called? | Stomata |
| What is the stomata? | Little holes in the leaf |
| What's in the middle of a stalk of a plan | Xylem |
| Where is the xylem located? | in the middle of a plant (it's stalk) |
| How is water pulled up through the plant? | Evaporation from the stomata |
| What does the phloem do? | Transport sugar |
| Which part of a plant transport suga | Phloem |
| What does the Xylem do? | Transport water |
| Which part of the plant transports water? | Xylem |
| What can be used to measure the rate of transportation? | Potometer |
| How can a potometer be used to measure the rate of transportation? | The plant takes up the water, from the water reserve and the bubble moves along the capillary tube; how much the bubble have moved it the rate of transport. |
| What process allow minerals to enter in the xylem? | Active transport |
| What does the stomata allow? | Gases in and out on the leaves |
| What does the sclera do? | Protects the inner eye structure and help maintains the eye's rounded shape. |
| What part of the eye helps protect the inner structures? | Scelera |
| What helps the eyes maintain the eye's rounded shape? | Scelera |
| What causes light ray to bend when they pass through the eye? | Cornea |
| What does the cornea do? | cause light rays to bend as they pass through |
| What is the pupils ? | The hole in eye controlled by the iris. |
| What part of the eye is controlled by the iris? | Pupil |
| What does the iris do? | Regulates the amount of light that enters the eye |
| What part of the eye regulates the amount of light that enters the eye? | Iris |
| What does the lens do? | Focuses pictures on the retina |
| What does the choroid do? | Stops lights being reflected in eye (and supplies the eye with food and oxygen). |
| Which part of the eyes stops light being reflected in the eye? | Choriod |
| What does the retina do? | sends messages to the brain |
| What id the retina sensitive to? | Light |
| What happens at the blind spot? | Blood vessels and nerves join. |
| What does the optic nerve do? | Sends signals to the brain |
| What does CNS stand me? | Central Nervous system |
| When does a signal travel electrically? | At each neuron |
| When does the signal become chemical? | At the synapse |
| State the seven stages at the return of the reflex. | 1. Stimulus 2. Receptor 3. Sensory Neuron 4. Synapse 5. Relay Neuron 6. Motor Neuron 7. Effecter Muscle |
| What is the job of the kidney? | cleans the blood by removing salts that are no need (like potassium) removes excess salts removes urea in the from of urine re-absorption of water and glucose |
| What are the advantages of Dialysis? | Keeps you alive |
| What are the disadvantages of dialysis? | The time taken of it A transplant is quicker Diet has the change because of it. |
| What are the advantages of a transplant? | Life can go back to normal, normal food/drink, hospital visits aren't as regular |
| what are the disadvantages of a transplant? | Have to have drugs that will lower the immune system- immunosuppresants there is a rick of reject |
| What is the role of the nephron? | It extracts wastes products |
| What products are removed by the nephron? | Urea and excess salts |
| What products are re-absorbed by the nephron? | Glucose and water |
| why is the blood delivered at a high pressure at Bowman's capsule? | Blood at a high pressure means a higher amount of blood goes through it, by filtration |
| what does ADH stand for? | Anti diuretic hormone |
| What does the ADH do? | Stops you peeing, makes the kidney reabsorb water, it mkes the urine more concentrated. |
| How/where is the anti-diuretic hormone produced? | It travels in the blood and is produces by the pituitary gland. |
| What produces ADH? | the pituitary gland. |
| Who was the scientist that discovered penicillin? | Fleming |
| On a agar plate, what does a larger clear zone show#? | a more successful and better antibacterial |
| How do you keep an aspetic technique? (agar plate) | Sterilise it with fire on the burnsen burner, only open the agar jelly at a slight angle |
| What does a phagocyte do? | Engulfs pathogen |
| Who was Edward Jenner? | He was the first doctor to vaccinate people against smallpox. |
| How did Jenner discover the vaccination? | He carried out on an experiment of Phipps. He took pus, taken from a cowpox, and inserted on the boys arm. He proved that having been inoculated with cowpox Phipps was immune to smallpox. |
| What is the difference between cowpox and smallpox? | Cowpox- a viral disease of a cows' udders Smallpox- an acute contagious viral disease, with fever and pustules that leaves permanent scars. |
| What happens when a virus/bacteria enters a body? | The virus/bacteria has antigens. These antigens have a certain shape design to the them. The white blood cell creates antibodies to create the same shape. The white blood cells create/use memory cell to remember the specific shape. |
| What is mycoprotein? (Quorn) | A meat substitute made from fungi. It is low in fat and high in protein. |
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