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Anit [1.1K]
4 years ago
9

PLEASE ANSWER ASAP!!

Biology
1 answer:
Over [174]4 years ago
5 0

Mitochondrial DNA can be traced for generations. It is because of the fact that   unlike nuclear DNA, mitochondrial DNA rarely gets mutated. The frequency of mutations in the mitochondrial DNA is approximately one every 3,500 years per nucleotide. That is why mitochondrial DNA of a person is almost similar to his/her direct maternal ancestor. So, it can be used to match lineages amongst people.

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3 years ago
Problems of world hunger are due to the green plant's inability to produce more food. True or False
Dmitry [639]
False. Problems of world hunger are due to prices of food going up, depending on how the harvest went, and if the food was harvested correctly.
6 0
3 years ago
Read 2 more answers
1. Completa cada uno de los enunciados utilizando cada uno de los conceptos del recuadro. palabras para completar:Aeróbica, Ferm
ivann1987 [24]

Answer:

1. respiración

2. ATP

3. aeróbico

4. fermentación

5. respiración anaeróbica

Explicación:

La energía se produce en forma de trifosfato de adenina por la descomposición de moléculas de alimentos como la glucosa, etc. en un proceso de respiración. Hay dos tipos de respiración i. mi. respiración aeróbica y anaeróbica. En la respiración aeróbica, se produce más ATP en presencia de la molécula de oxígeno, mientras que en la respiración anaeróbica, se produce menos ATP cuando no hay oxígeno. La respiración es el proceso que ayuda a la disponibilidad de oxígeno para la producción de energía.

7 0
3 years ago
The free energy for the oxidation of glucose to CO₂ and water is -686 kcal/mol and the free energy for the reduction of NAD+ to
Archy [21]

Answer: The main reason why only 2 molecules of NADH is formed during glycolysis when it appears that as many as a dozen could be formed is because during glycolysis,most of the free energy that are available from the oxidation of glucose remains in one of the products of glycolysis known as pyruvate which acts like glucose but doesn't undergo metabolism.

Glycolysis is the splitting of sugar molecules into useable/ manageable forms,it can also be seen as the aerobic catabolism of sugar inorder to produce energy in the form of ATP,NADH and PYRUVATE.The following are the products of glycolysis; pyruvate,2 molecules of ATP and 2molecules of NADH.

Pyruvate are used in aerobic respiration or anaerobic respiration if oxygen is not available.

5 0
4 years ago
What do neutral fats, such as triglycerides, do for your body?
FromTheMoon [43]

Answer  No 1:

Neutral fats such as triglycerides are made up of chains of fatty acids. These molecules are used for storing energy in the body. Also, as they form layers of fat in the body, they provide insulation to the body.

Any extra calories that are not required by our body are converted into triglycerides. The molecules of triglycerides are then stored in our body and used upon need.

Answer No 2:

Lipids are organic molecules that are<u> insoluble </u>in water.

Lipids can be described as a class of macromolecules which do not dissolve in water bur can dissolve in non-polar solvents. The lipids are the main constituent of cell membranes and also are involved in storing energy.Lipids are also used for cell signalling.

5 0
3 years ago
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