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tester [92]
3 years ago
11

The diagram shows the general structure of a lipid, which consists of two main parts. A carboxyl group in a circle and a chain.

Which part is circled? alcohol group fatty acid carboxyl group unsaturated lipid
Biology
2 answers:
irina [24]3 years ago
6 0
Gill didn’t know if I won a raid pass back
worty [1.4K]3 years ago
4 0

Answer:

Carboxyl Group

Explanation:

Took test and got it right.

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Answer: The population size is recorded for each species present in the construction area before and after the building is completed
This method of collecting data will provide the most accurate information about how an ecosystem is being affected by human development because it studies a lot of different species both before and after the construction.
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PLEASE SOMEONE HELP ME PLEASE PLEASE
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1)  Technique B

2) Because it preserves the harmless insects and targets only moth larvae

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An enzyme contains a catalytic histidine residue in its active site that must release an R group proton to solution in order to
hjlf

Options missing:

a) The pH of the environment should be relatively high.

b) The pH of the environment should be relatively low.

c) The pH of the environment would not matter.

d) The environment should be set to the biochemical standard state.

Answer:

a) The pH of the environment should be relatively high.

Explanation:

For optimal function an enzyme needs a certain environment or condition. As temperature increases, the rate of enzyme activity also increases. As temperature increases toward its optimum point of 37 degrees Celsius (98.6 F), hydrogen bonds relax and make it easier for the hydrogen peroxide molecules to bind to the catalase.

The part of the enzyme where this reaction takes place is called the active site. A temperature that is higher or lower than this optimum point changes the shape of the active site and stops the enzyme from working. This process is called denaturation.

Enzyme pH levels also change the shape of the active site and affect the rate of enzyme activity. Each enzyme has its own optimal range of pH in which it works most effectively. In humans, catalase works only between pH 7 and pH 11. If the pH level is lower than 7 or higher than 11, the enzyme becomes denaturated and loses its structure. The liver sustains a neutral pH of about 7, which creates the best environment for catalase and other enzymes.

General acid catalysis would require histidine to be protonated at pH values (pH 8.0) optimal for enzymatic activity which is relatively high.

3 0
3 years ago
What was the term in the Gilded Age for a new emasculated condition that marked by depression,indigestion, hypochondria, and ext
Whitepunk [10]

Answer:

Neurasthenia

Explanation:

The gilded age refers to the last decades of the nineteenth century that is between the 1870s to about 1900.

The medical term which was used during the Gilded age to refer to the condition caused by the weakness of the nerves or nervous breakdown or nervous illness is Neurasthenia.

The Neurasthenia was marked by the symptoms of the depression, the fight or flight responses such as indigestion, the nervousness and the irritability.

Thus, Neurasthenia is the correct answer.

8 0
3 years ago
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