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igomit [66]
2 years ago
6

Convert enzyme concentrations of 2.5%, 5.0%, and 10% to ppt units.

Biology
1 answer:
slavikrds [6]2 years ago
7 0

Answer:

2.5 x 10¹⁰ ppt

5.0 x 10¹⁰ ppt

1.0 x 10¹¹ ppt

Explanation:

The notation ppt refers to parts per trillion units, that is, how many parts of enzyme are there in 1 trillion parts. Percentage refers to the number of parts per 100 units. Converting the given values from percentage to ppt:

\frac{2.5}{100}=\frac{a}{1,000,000,000,000}\\a=2.5 *10^{10}\ ppt\\\\\frac{5.0}{100}=\frac{b}{1,000,000,000,000}\\b=5.0 *10^{10}\ ppt\\\\\frac{10}{100}=\frac{c}{1,000,000,000,000}\\c=1*10^{11}\ ppt

The concentration in ppt are:

2.5 x 10¹⁰ ppt

5.0 x 10¹⁰ ppt

1.0 x 10¹¹ ppt

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Autonomic centers in the ________ exert neural control over hormone secretion by the adrenal medullae. a) pineal gland b) pituit
frez [133]

Answer:

The correct answer will be option-E

Explanation:

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The secretion of the hypothalamus controls the activity of the vasomotor center which help maintain the blood pressure.

Thus, option-hypothalamus is the correct answer.

3 0
2 years ago
In pea plants, yellow seed color is dominant and green seed color is recessive. What will the generations look like? Assume that
shepuryov [24]

Answers;

-The P generation has yellow and green seeds.

-The F1 generation has all yellow seeds.

-The F2 generation has yellow and green seeds.

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Yellow seed color

F1 generation: In Mendel's experiments the offspring of the P generation

Yellow seed color and

Green seed color

F2 generation: In Mendel's experiments the offspring of the F1 generation

4 0
2 years ago
Read 2 more answers
Some members of david's family have an autosomal recessive disease. david does not have the disease; neither do his parents, nor
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A pedigree shows the genotypes of the family members 
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the dominant gene - H
   recessive gene    - h
for a person to get a disease, genotype should be hh, as its autosomal recessive. If the person is normal he/ she could have the genotype HH or could be Hh and thats called a carrier.
the offspring will receive one gene from the mother and one from the father 

8 0
2 years ago
I am an autotrophic organism made of many cells with nucleus. i have a cell wall made of cellulose and have chloroplasts. what k
vova2212 [387]
Answer:  "Kingdom Plantae" ; or, the "plant kingdom" .
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5 0
2 years ago
Why does it make metabolic sense for the same hormone signal to stimulate glycogenolysis and inhibit glycolysis in the liver whi
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This is because if the two  metabolic processes were to be  active at at the same time;  

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<u>2</u> Both<u> Glycolysis and Gluconeogensis </u>are both<u> exergonic processes  in cells. </u> The  heat energy liberated from these Calorinogenic effects  will be higher than what the natural thermodynamic barrier of cells can withstand. Consequently;  the heat will raise temperature of the cells affecting metabolic activities of hormones and enzymes which are (proteins) ,and easily denature by high temperatures.    

However, in muscles cells,gluconeogeneis is a compensasory process of Glycolysis. This because during active exercise with high metabolic demand in muscles cells, glucose is rapidly metabolise  to to pyruvate,(but not at the rate that the Citric acid  cycle can  metabolise) for Lactic acid production by muscles cells for energy production.  Pyruvate must be broken down rapidly so that NAD+ will be available for  Glycolysis to continue. Therefore  to sustain Glycolysis at this rate  continuous supply of glucose is supplied  from Gluconeogenesis.

8 0
1 year ago
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