Answer:
i think this is the answer so
If you have a screwdriver, voltage tester, insulated pliers and a wire connector you can troubleshoot your light switch to determine the problem and, if necessary, ... If the light switch isn't working at all, there may be no power to the circuit. Make sure the breaker to the switch is on in your breaker box and determine whether ...
Explanation:
Answer: Arctic Sea ice extent is virtually impossible to accurately measure from the Earth's surface. Scientists use radiometry data and visible imagery collected from the satellites to determine the sea ice extent.
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Bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.
And the main ones that use celluar respiration are autotrophs and heterotrophs.
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The correct answers are:
1. cellular respiration and photosynthesis both involve water.
<span>Water is broken down to form oxygen during photosynthesis, while in cellular respiration oxygen combined with hydrogen forms water.
2. cellular respiration uses sugar, and photosynthesis produces sugar.</span> <span>Photosynthesis makes the glucose that is used in cellular respiration to make ATP. </span>
Answer:
The correct answer is: d. progressive stabilisation of correct secondary structural intermediates, and unfolding of incorrect structures, until the final structure is attained.
Explanation:
- Protein folding is a sequential process and not a random one.
- It is necessary that a protein must fold in such a way that in the end it is able to attain the particular conformation which is required for its function.
- The folding of an amino acid sequence is a process that is thermodynamically favourable.
- This is because in a folded protein the hydrophobic amino acids escapes from interacting with water molecules and hence gets stabilised.
- A folded protein has lower energy and is more stable than a linear polypeptide chain.
- The folding of an amino acid linear chain into a protein takes place in the following way:
- The folding of the amino acid sequence begins during the process of translation of the mRNA (messenger Ribonucleic Acid) by Ribosome. (Co-translational folding)
- This is because initially the linear amino acid sequence forms a secondary structure (alpha helix, beta sheet) which is formed between the nearby amino acid residues.
- These structures form progressively and sequentially and each structure after formation is checked for its correct conformation before the next structure (tertiary structure) is formed.
- If an incorrect folding has occurred, the folded polypeptide chain opens up and refolds until correct orientation is attained.
- Folding, opening and refolding process continues until the correct conformation of the protein is attained.
