UNIT 4 basic revision

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What is meant by bactericidal?
This is meant that the cell is killed or destroyed by cell lysis, it explodes
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What is meant by bacteriostatic?
Cells can not reproduce, therefore there is no cell division
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How can hospitals reduce infections being spread?
Only use antibiotics when it is needed and ensure course of treatment is completed
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What can hospitals do to patients?
isolate patients with infectious diseases
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What is also encouraged?
good washing hygiene
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What can patients be?
Screened
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What are two features of antibodies?
it is a glycoprotein, antigen binding site
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What is active immunity?
There is artifical active immunity, vaccine, synthetic antigen, stimulation of immune response and antibodies are produced faster
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Why is data to do with HIV estimates?
HIV is not always produced symptoms, tests need to occur to test symptomless HIV
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HOw can seperation of a species lead to two seperate species?
reproductive isolation, restriction of gene pool and selection pressures
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How can genetic mutation lead to a seperation of species?
Different alleles arise which leads to different phenotypes
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Why is the light dependent stage essential for the light independent stage?
makes products for the calvin cycle, the products are ATP and reduced NADP, REduced NADP is used in reduction of CO2 and ATP is used as an energy source
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What is meant by succession?
Changes in a community over a period of time
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What is meant by climax community?
The last stage in the seres, that is self-sustaining
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Why would 95% of light hitting the plant not be used by chloroplast?
reflection, wrong wavelength of light, not hitting chloroplast
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what is means by J m-2 year-1?
Energy in meters squared per year
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What is the equation to work out Energy transfer?
NPP= GPP - R
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WHy is a species known as one species rather than 2?
They can interbreed to form fertile offspring and the offspring can pollinate and produce viable offspring
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What is meant by genetic diversity?
variety of alleles in a gene pool
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Two ways in which the skin flora can help protect a person from infection?
COmpetition for nutrients, competition for space
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How is oxygen gained from light dependent stages?
Photoysis of water
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What is meant by genetic mutation?
Change in nucleotides in RNA or DNA
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Card 2

Front

What is meant by bacteriostatic?

Back

Cells can not reproduce, therefore there is no cell division

Card 3

Front

How can hospitals reduce infections being spread?

Back

Preview of the front of card 3

Card 4

Front

What can hospitals do to patients?

Back

Preview of the front of card 4

Card 5

Front

What is also encouraged?

Back

Preview of the front of card 5
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