A micro organism that enters the body and causes disease
1 of 19
give examples of how communicate disease are transported
contact with blood and bodily fluids; breathing in an airborne virus; or by being bitten by an insect.
2 of 19
what is a virus
a virus attacks the body by invading the cell then duplicates its self within the cells them burst out the cell, destroying the cell
3 of 19
name all of the bodies defences against diseases
skin acts as a barrier, hairs trap particle containing pathogens, lungs releases mucus to trap pathogens,the stomach produces hydrochloric acid which destroys the pathogens
4 of 19
how does the white blood cell kill pathogens
1. consumes the pathogen and digests them 2. produces antitoxins 3.produces antibodies designed for that type of pathogen and kills it
5 of 19
what is osmosis
in osmosis water moves form a high concentration to a low level of concentration through a permeable membrane
list the types of Lymphocytes and how they prevent disease
T-lymphocytes decide if they are a threat or not,then decide what to do next and B-lymphocytes attack the cell and produce antibodies
12 of 19
what is the word equation for photosynthesis
Carbon dioxide+water-light-> oxygen +glucose
13 of 19
what can effect the rate of photosynthesis
light intensity, carbon dioxide concentration, temperature and the amount of ch chlorophyl
14 of 19
how does light intensity effect the rate of photosynthesis
Increasing the light intensity increases the rate of photosynthesis, but At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature
15 of 19
how does carbon dioxide concentration effect the rate of photosynthesis
If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase.
16 of 19
how does the temperature effect the rate of photosynthesis
The chemical reactions that combine carbon dioxide and water to produce glucose are controlled by enzymes. The rate of photosynthesis is affected by temperature.At low temperatures, the rate of photosynthesis is limited
17 of 19
how does the amount of chlorophyll effect the rate of photosynthesis
Leaves with more chlorophyll are better able to absorb the light required for photosynthesis.
18 of 19
how does light effect the rate of photosynthesis
Light intensity affects the rate of photosynthesis. The light intensity fluctuates during the day, and will also be affected by the weather. The rate of photosynthesis will change with the time of day.
19 of 19
Other cards in this set
Card 2
Front
contact with blood and bodily fluids; breathing in an airborne virus; or by being bitten by an insect.
Back
give examples of how communicate disease are transported
Card 3
Front
a virus attacks the body by invading the cell then duplicates its self within the cells them burst out the cell, destroying the cell
Back
Card 4
Front
skin acts as a barrier, hairs trap particle containing pathogens, lungs releases mucus to trap pathogens,the stomach produces hydrochloric acid which destroys the pathogens
Back
Card 5
Front
1. consumes the pathogen and digests them 2. produces antitoxins 3.produces antibodies designed for that type of pathogen and kills it
Comments
No comments have yet been made