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matrenka [14]
3 years ago
6

arious impairments of the mind are commonly associated with old age. To what extent are these biological in origin? To what exte

nt, social in origin?
Biology
2 answers:
Tema [17]3 years ago
8 0

Answer:

When you begin getting old, matters inside your frame begins off revolved shutting down, like memory, resistance to sickness, etc. The bulk changed into born with all of this stuff running very well. We felt top and lifestyles changed into a pleasure. But while you attain 70' matters begin to end running and could retain to accomplish that until you die. Some human beings stay longer than others and their frame appears to keep collectively loads better. But we can all die one day.

Explanation:please

add me

Lana71 [14]3 years ago
4 0

Answer:

When you begin getting old, matters inside your frame begins off revolved shutting down, like memory, resistance to sickness, etc. The bulk changed into born with all of this stuff running very well. We felt top and lifestyles changed into a pleasure. But while you attain 70' matters begin to end running and could retain to accomplish that until you die. Some human beings stay longer than others and their frame appears to keep collectively loads better. But we can all die one day.

Explanation:

brailist

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Pls help me for this <br> urgent ​
katrin2010 [14]
The answer to this is B
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What trophic level are insects in
vesna_86 [32]

Answer:  The first trophic level usually is green plants. The second tropic level includes herbivores, and insects are a principal component. However, insects also are carnivores, parasites, and detritivores, so they appear in various tropic levels

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3 years ago
What happened during the Pleistocene to cause global cooling?
musickatia [10]

Answer:

B Low Solar Activity

Explanation:

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6 0
3 years ago
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
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