B1
- Created by: Muneeta
- Created on: 15-06-15 16:36
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- B1
- Plant Hormones
- Can be use for either
- Agriculture (growing crops in fields)
- Horriculture (growing flowers, fruits and vegetables)
- Weedkillers
- Selective weedkillers kill broad-leaved weeds in grass and crops that have narrow leaves eg wheat.
- Rooting Hormones
- Plant hormones used in rooting powder as it helps plant cuttings develope roots faster
- Can be use for either
- Plant and Animal Adaptations
- Animals in the Artic
- Smaller ears (reduced surface area therefore reduced heat loss)
- Lighter colours (for camoflage in snow)
- More fat below skin (for insulation)
- Larger feet (for better grip on slippery surfaces)
- Animals in Dry a Environment
- drink latrge quantities of water - go longer without drinking but still stay hydrated
- Fat stored for food and water
- Thick coat on top of body to insulate against heat
- Large ears transfer body heat to air quicker
- Extremophiles
- Organisms that have adaptations so they can tolerate very extreme environments many extremophiles are microrganisms
- Animals in the Artic
- Nervous System
- Receptors
- Stimulus (change in surroundings)
- Nervous System (detects stimuli and coordinates response)
- Response (change organisms behaviour as a result of the stimulus
- Nervous System (detects stimuli and coordinates response)
- Receptor organs include;eyes,ears, nose, tongue and skin
- Stimulus (change in surroundings)
- Responses
- Reflex
- Electrical IMPULSE passes from receptor across SENSORY NEURONE to a RELAY NEURONE in the centeral nervous system impulse then passes to a MOTOR NEURONE and then to the EFFECTOR
- Reflex
- Receptors
- Asexual Reproduction
- Asexual reproduction involves only one parent. So there is no genetic variety. However this works really well if you need to grow or repair your cells
- Healthy Living
- Diet
- Body needs nutrients to stay healthy
- if you do not get these nutrients you will become malnourished
- Body needs nutrients to stay healthy
- Metabolic Rate = The speed at which chemical reactions occur in your cells
- Eating too much fat can lead to high cholesterol which can lead to heart disease
- Diet
- Drugs Trail
- Before new drugs are introduced you first test them in lab on cultures of cells, cultures of tissues and animals. you then get a healthy volunteer and give them a small dose of the drug to check that the drug is not harmful, then you test the EFFICANCY (if it works) to find the best dose to give.
- Plant Hormones
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