Cerrar
What is a population?
What is a community?
What is the Capture-Recapture method and what is it used for?
What is the calculation for estimating population size?
What would be the population size if 40 woodlice were captured in the first sample and 50 were captured in the second sample, of which 10 were marked?
How does sample size affect the accuracy of the estimate?
What 3 assumptions must be made whilst applying the Capture-Recapture method?
What is an ecosystem?
What is meant by abiotic?
What is meant by biotic?
What is the difference between a habitat and an ecosystem?
What does self-supporting mean?
What is a transect?
What are transects used for?
What is Zonation?
What 3 things is biodiversity a measure of?
What is the difference between a natural and artificial ecosystem?
What is the balanced symbol equation for photosynthesis?
How many stages are there to photosynthesis?
Where does photosynthesis take place?
What happens in the first stage of photosynthesis?
What happens in the second stage of photosynthesis?
Why isn't water a product of photosynthesis?
Why do plants continuously respire?
What two reasons are there for storing glucose as an insoluble starch?
What 5 things do plants use glucose for?
How did the Greeks think plants gained mass?
How did Van Helmont think plants gained mass?
What did Priestley's experiments show?
What 3 factors limit the rate of photosynthesis?
What is diffusion?
Why does diffusion occur in liquids and gases?
What 3 factors affect the rate of diffusion?
Did you know?
Cell Membranes are able to let very small molecules, like simple sugars, water or ions, in and out of the cell.
Big molecules like starch and proteins can't pass through.
Label the diagram
What mostly diffuses into the leaf during the day?
What mostly diffuses out?
What mostly diffuses into the leaf at night?
What mostly diffuses out?
What 5 ways are leaves adapted for diffusion?
What 5 ways are leaves adapted to absorb light?
What are the two transport vessels in plants?
What does the Phloem transport?
What does the Xylem transport?
What is the use of the vascular bundle?
How do root hairs take in water?
What is transpiration?
Describe the 3 stages of transpiration
What are the 4 benefits of the transpiration stream?
What is transpiration rate affected by?
How does light intensity affect transpiration rate?
How does temperature affect transpiration rate?
How does air movement affect transpiration?
How does air humidity affect the rate of transpiration?
What 3 ways have plants adapted to reduce water loss from their leaves?
If a guard cell is turgid, is the stoma open or closed?
What are the 3 main nutrients plants need?
What does the plant need nitrates for?
What does a lack of nitrates cause?
What are the use of phosphates?
What does a lack of phosphates cause?
What is potassium used for?
What does a lack of potassium result in?
What other mineral is needed, in small amounts, for making chlorophyll?
What do root hairs use to take in minerals?
How does active transport work?
Why do root hairs have to use active transport?
What 4 things does the rate of decay depend on?
What is the result of these factors being at optimum level?
What do detritivores feed on?
How do detritivores speed up the rate of decay?
How do saprophytes feed on decaying material?
What is extracellular digestion?
What are the 6 methods used to reduce the rate of decay?
How does canning reduce the rate of decay?
How does cooling reduce the rate of decay?
How does freezing reduce the rate of decay?
How does drying reduce the rate of decay?
How does adding salt/sugar reduce the rate of decay?
How does adding vinegar reduce the rate of decay?
What is intensive farming?
What are 4 advantages to intensive farming?
What is hydroponics?
What are the advantages of hydroponics?
What are the disadvantages of hydroponics?
What are two instances where hydroponics are used?
What is an advantage of using pesticides?
What are 3 disadvantages of using pesticides?
What is biological control?
What are the 2 advantages of using biological control?
What are the 4 disadvantages to biological control?
What are 3 advantages to using organic farming methods?
What are 3 disadvantages to organic farming?
How does intensive farming reduce energy loss?
