Indicate whether the following would increase or decrease the amount of co2 in the atmosphere: a) increasing the number of plants – b) burning fossil fuels – c) increasing the number of animals – d) deforestation –

a). Decrease.

Plants can absorb carbon dioxide from the air in the process of photosynthesis, where they make food using carbon dioxide and sunlight. Therefore, the carbon dioxide in air would decrease.

b). Increase.

Burning of fossil fuels, or combustion, releases not only carbon dioxide, but also other greenhouse gases like nitrous oxides. That's why people nowadays recommend renewable energy like solar energy instead of nonrenewable energy produced by burning of fossil fuels. So, the answer is increase.

c). Increase

During respiration, animals release carbon dioxide and breathe in oxygen. Carbon dioxide are waste to the body. Therefore, the more animals there are, the more carbon dioxide we exhale each and every day.

d). Increase.

Deforestation is the removal of large scale of forest and trees. As we already said in part a, plants (or trees) absorb carbon dioxide for photosynthesis. Therefore, if the trees are removed, there would be less carbon dioxide being absorbed and removed from the atmosphere.

4

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure