The main variables which affect photosynthesis are light, water, CO2 concentration and temperature.
On a deeper level, other factors like amount of chlorophyll, availability of nutrients (eg Mg is needed for chlorophyll synthesis) will also affect the rate of photosynthesis, though these are rarely covered in discussion of this topic.
The thing is that photosynthesis will be held back by whichever factor is in shortest supply.
As I sit in my study in England, the sun is shining brightly, but the temperature outside is only 5ºC. I suspect the rate of photosynthesis is limited by temperature today.
Yesterday was a dull day, but in the middle of the day it was not cold and I suspect there wasn't enough light for photosynthesis. If I had turned the security lights on my house on, the plants in my garden might (possibly) have photosynthesised faster.
In summer, some farmers growing crops in glasshouses actually increase the amount of carbon dioxide in the air as all their plants have plenty of water and light and the temperature is near the best possible for photosynthesis.
A good way to investigate this might be with the help of algae and you can use the 'Immobilised Algae' practical for this.
Although water is needed as a raw material for photosynthesis, don't bother trying to investigate water as a variable - plants normally wilt and wither long before water restricts photosynthesis at the biochemical level. They need water to support the plant to face the sun as well as a raw material of photosynthesis.
The simplest equation for photosynthesis:-
Carbon dioxide + water -----(in light, with chlorophyll and enzymes)----> sugar + oxygen
Temperature speeds up all chemical reactions - photosynthesis is no exception.
Enzymes work better in warm conditions (up to about 50ºC when enzymes start to be destroyed by heat).
The idea to get across is that different conditions will be most important on different occasions. This morning, my garden could do with more warmth - yesterday, it could do with more light / sun!
It can take one hour for the body to process the alcohol in one standard drink which is equals to 0.6 ounces.
<h3>How much time take by the body to process the alcohol?</h3>
Our liver can process one ounce of alcohol of standard drink which is equals to 0.6 ounces in one hour. If a person consume more than this amount, the body becomes saturated and the extra alcohol will accumulate in the blood and tissues until it can be metabolized by the body.
So we can conclude that It can take one hour for the body to process the alcohol in one standard drink.
Learn more about alcohol here: brainly.com/question/947751
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Answer: b-7
h-5
i would say tht d-6 but not sure
a-3
e-8
g-4
c-1
f-2
Explanation: not 100% sure but thts what i would say are the right answers srry if they are wrong
Answer:
except natural killer cells.
Explanation:
The Helper T cells produce cytotoxic T cells and help B cells, but not natural killer cells
Cell Theory #1Cells are the basic structure and function of a living thingCell Theory #2All organisms (living things) are made out of cellsCell Theory #3<span>only existing cells can make new cells</span>
