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blsea [12.9K]
2 years ago
9

Are fish gills a Physiological adaptation or a Structural Adaptation?

Biology
1 answer:
White raven [17]2 years ago
4 0

Answer:

yes

Explanation:

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True or false: In a gel electrophoresis gel, a DNA fragment containing 100 bp (base pairs) would travel faster (and further) tha
vova2212 [387]

Answer: true

Explanation: In gel electrophoresis, the smaller the size/molecular weight of DNA the faster it moves across the gel and vise versa. This is as a result of the pore size of the gel which is usually prepared 1g of agarose in 100ml of distilled water. So a DNA fragment with 1000 base pairs will "struggle" its movement across the gel pore making it mive less faster and further. Movement and molecular weight of DNA are inversely proportional.

3 0
3 years ago
You disrupt all hydrogen bonds in a protein. what level of structure will be preserved?
Alex777 [14]
I believe the primary structure will be preserved. The secondary level of proteins is defined by patterns of hydrogen bonds between the main chain peptide groups. Therefore distorting the Hydrogen bonds disrupts the secondary structures. The primary structure on the other hand is not affected by disruption of the hydrogen bond since these structures refers to the sequences of amino acids in the polypeptide chains that are joined by the peptide bonds.  
5 0
3 years ago
Lactose when digested, it is hydrolyzed by lactase into its monomers, which are then absorbed by blood. Following are test resul
kap26 [50]

Answer: Based on the information, the person DOES NOT have lactose intolerance because glucose levels significantly increases in normal individuals after a lactose rich meal.

Explanation:

Lactose is a disaccharide carbohydrate which when taken (found mostly in diary products) is hydrolyzed by lactase into its monomers, which are then absorbed into the blood. The hydrolysis of lactose gives glucose and galactose which is carried out by the digestive enzyme lactase. Deficiency of the lactase enzyme gives rise to a disorder known as LACTOSE INTOLERANCE.

The diagnosis of lactose intolerance or lactase deficiency can be confirmed by measuring the plasma glucose concentrations, as in glucose tolerance test, after giving an oral load of lactose rich solution. If the disaccharide (lactose) cannot be hydrolysed, the constituent monosaccharides cannot be absorbed and the concentrations of plasma glucose rise VERY little.

But the fasting blood glucose done after 2 hours of drinking a lactose rich solution showed a typical rise in blood glucose levels which were 80, 90, 100, 110 and 120 mg/ dL tested for every 30 minutes. This indicates that the individual does not have lactose intolerance because the glucose gotten from hydrolysed lactose was absorbed and cause a significant rise in blood levels.

3 0
3 years ago
How do enzymes spends up. Chemical compounds
mr Goodwill [35]
No, no look my shoes its gucci xd
7 0
3 years ago
Which phrases describe anaerobic respiration?
Free_Kalibri [48]

Answer:

is an inefficient way to obtain ATP

creates a buildup of lactic acid

does not require oxygen

Explanation:

Anaerobic respiration is the process by which food substances are broken down without presence of oxygen. An intermediate compound, ethanol in plants and lactic acid in animals is produced. The incomplete breakdown of glucose results into production of less energy(ATP) than in the case of aerobic respiration.

7 0
3 years ago
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