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schepotkina [342]
3 years ago
9

Which functional group allows the sugar glucose to dissolve in blood?

Biology
2 answers:
ohaa [14]3 years ago
7 0

Answer : The correct option is, (b) hydroxyl group.

Explanation :

Glucose is a monosaccharide sugar and it is the most important carbohydrates. It is used as the source of energy in both animals and plants. Glucose is the main products in the photosynthesis.

Sugar glucose is an organic compound which composed of the elements carbon, hydrogen and oxygen. The functional groups present in the sugar glucose are hydroxyl, aldehyde groups.

From the given options, only hydroxyl group allows the sugar glucose to dissolve in blood.

Hence, the correct option is, (b) hydroxyl group.

The structure of the glucose is shown below.

Sergio039 [100]3 years ago
3 0
Hydroxyl groups make sugars more water soluble. Your answer is B
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Monomers are made up of many polymer units. True or False
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Answer: False

Explanation:

On the contrary, polymers are made up of many monomer units. A good example of polymers is starch, a polysaccharide made up of several units of glucose (monomers) linked by glycosidic bonds

Thus, it is false to say monomers are made up of polymer units

4 0
3 years ago
A mutation creates a dominant negative allele of a particular gene. The normal allele of the gene encodes a protein that forms a
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Answer:

87.5% of the trimers in the cell will be inactive.

Explanation:

A monomer is a single subunit. Look at an easy comparison. If a monomer is a ball. For the protein to be functional, it needs to be a trimer .A trimer = 3 monomers joined / bound together with bonds. Therefore, if a monomer is a ball, we need 3 balls, we attach it together and that is the primer . if one ball becomes missing, that protein won't work .

In chemistry, a trimer is regarded as three molecules or ions of the same substance (that is, same type) which are associated together .

Double negative : Each gene has 2 alleles. So, for a positive protein, both allele needs to be same, let's say + means on. So for a x protein , if it's x+/x+ it means the protein is homozygous and active. If for some mutation, it's x+/x- , it's a heterozygous protein. Double negative means when it is x-/x- and this means the protein has lost is function . It's not functional at all.

The heterozygous cell will form one or more subunits has the mutant structure when the gene is expressed. From the question if there is a mutation in dominant negative allele, it will cause the inactivation of one trimer resulting in 87.5% inactive trimers for a heterozygous individual.

There are 87.5 % percent of the trimers present in the cell which will be inactive for a heterozygous individual, If at least one of the subunits has the mutant structure.

The probability for each individual subunit to be a mutant is 1/2

Gene codes for a protein that forms trimer so the percentage of the trimers present in the heterozygous individual is third power of 1/2 =1/8

1/8=0.125 will be active.

1- 0.125 will be inactive.

=0.875 will be inactive.

0.875 × 100= 87.5%

Therefore 87.5% will be inactive.

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