Edexcel igcse biology 1B

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glucose - gain energy

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urea and excretory gasses - removed from human body?

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blood taken in by mosquito BUT it may take in pathogen/disease causing microorganism

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Pathogen inside blood of mosquito or on it

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Mosquito moves to the second organism, inserts nose, may inject pathogen in blood stream

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increasing light intensity /\ photosynthesis

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think got 1 wrong label possibly

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don’t think I got anything wrong

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forgot water vapour is green house gas (-1)

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ASEXUAL no genetic variation VS sexual

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ASEXUAL needs no mate VS sexual

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ASEXUAL faster & no need to find mate so more daughter cells

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haemoglobin mass /\ for 2nd highest altitude but decreases 3rd highest this is because person takes heavier/deeper breaths where they get in more O2 so mass haemoglobin decreases

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mass RBC decreases because less o2 to carry

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don’t think I got anything wrong,

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RBC have no nucleus

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RBC have a biconcave shape

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RBC has haemoglobin

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blocking the sperm so no fusion so decreased successful pregnancy

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for the pancreas it blocks the [pancreas with secretes PROTEASE, LIPASE AND AMYLASE] hence some material TAKES LONGER TO DIGEST and ALSO IT MEANS LESS IS ABSORBED

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full concentrations ensures that the full effects are visible

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Use differing amounts of soda lime to very CO2 exposure AND maintain different 5 different plants same weight, species, high, age and put them in dark room for 48 hours to reduce photosynthesis rate to 0 and one of them has no soda lime and different amounts of differing concentrations and ensure same exposure to sun light and water and mineral ions in the soil and the same amount of sunlight access and then you measure the thing and you measure change in height or number of leaves or weight and you repeat multiple time, take average, discount anomalous results