B4: Organising Animals And Plants Flashcards
What are some functions of the blood?
- Transports oxygen and carbon dioxide
- Transports nutrients
- Transports salts
- Transports white blood cells
- Transports hormones
- Transports waste products from cell to liver.
What are the 4 main components of blood?
- Red blood cells
- White blood cells
- Platelets
- Plasma
What are the main veins/arteries in the circulatory system?
- Pulmonary artery
- Pulmonary vein
- Vene Cava (Vein)
- Aorta (Artery)
What are the 2 main parts of the heart?
- Atrium (left and right)
- Ventricle (left and right)
How do doctors tackle Coronary Heart Disease (CHD)?
Using Statins and Stents
What does the xylem do?
Carries water and dissolved minerals from roots to leaves
What does the phloem do?
Carries dissolved food from the leaves around the plant
What does the xylem tissue do?
Carries water and minerals from the soil to the rest of the plant
Where is most blood found in the circulatory system?
In the systemic circulation, mainly the veins
Why is water constantly lost from a plants leaves?
Due to evaporation
What is the function of the stomata?
To open when gas exchange is neccesary
What factors affect the rate at which water leaves a plant?
- Temprature
- Humidity
- Air movement (wind)
- Light intensity
What is the difference between translocation and transpiration in a plant?
Translocation is the movement of sugars, ALL AROUND the plant.
Transpiration is the movement of water, ONLY UP the plant.
