The Miller-Urey experiment showed that simple molecules could have arisen abiotically. This chemical experiment included conditions similar to those present on the early Earth, and tested the origin of life under those conditions.
Water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) were the chemicals used to produce the results of the experiment, the factors needed for simple life to arise. Given similar conditions on other planets, it's possible that life could arise there as well.
Answer: a) substrate and cofactors b) covalent modification
Explanation:
Metabolic pathways involve all the chemical processes takes place in the enviornment or in an organisms.The metabolic pathways are controlled through the catalytic activities of enzymes.
The availability of enzyme is regulated by substrate and cofactors present in enzyme and enzyme activity is commonly regulated via covalent modification.
Enzymes are highly selective in nature and bind to a specific substarte only. The active site in enzyme binds with the substrate to form enzyme substrate complex. Coactors assist the enzyme activity, without cofactor enzyme can not perform its activity.
Hence enzyme availibility is regulated by substrate and cofactors regulates.
Covalent modifications regulates activity of enzyme as it involves addition and removal of chemical group to synthesis required protein. It can change the chemical properties of the site by targeting one or multiple amino acid.
Thus the correct answer is a) substrate and cofactors b) covalent modification
Sentence Correction: In which part of the cell is the majority of the energy released from the breakdown of glucose?
nucleus
mitochondrion
cytoplasm
plasma membrane
Answer: <em>The answer is mitochondrion.</em>
Explanation: <em>The reason the is the correct answer is because, there are the Locations of Cellular Respiration which occurs in two stages.</em>
<em>First stange - cytoplasm</em>
<em>Second stage - mitochondrion</em>
<em>So as we can see, mitochondrion is the Second stage which is the correct answer because the majority of the energy released from the breakdown of glucose.</em>
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Answer: Ask your teacher for some help
Explanation: if anything can help us your teacher
Answer:
b. Hydrogen-carbon
Explanation:
Triglycerides, also called fats are fatty acid esters of glycerol. One molecule of triglyceride consists of three fatty acids linked to one glycerol by ester linkages. Fatty acids are hydrocarbon derivatives with a long hydrocarbon chain in which carbon atoms are bonded to hydrogen atoms by covalent bonds. The carbon-hydrogen bond is one of the bonds with high energy levels. Therefore, the energy of triglycerides is stored in carbon-hydrogen bonds of hydrocarbon chains of fatty acids.
