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3 years ago

A replacement or modification to a base in a molecule is called a __________________

Biology

2 answers:

Llana [10]3 years ago

4 0

A. The Answer to this question is Mutation.

pychu [463]3 years ago

3 0

Answer: Mutation

Explanation:

Any replacement or modification to a base in a molecule is known as mutation. Any change in the single base pair is also known as mutation.

Mutation results from the error takes place during the time of DNA replication, mitosis and meiosis.

Mutation can also be caused by the addition or deletion of the base pair. There are basically 3 types of mutation: Insertion, deletion, substitution.

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Lostsunrise [7]

photosynthesis

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True or false earth is a single interconnected system :)

oksano4ka [1.4K]

Answer:

True.

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3 years ago

Which of the following is true of plant cells but not of bacterial cells?

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3 years ago

Using the table below, what is the total net gain of ATP molecules per glucose molecules?

svlad2 [7]

Explanation:

D. 38 ATP

During respiration, the breakdown of glucose undergoes several steps in order to produce ATP, namely in glycolysis, the Kreb's cycle and oxidative phosphorylation.

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

Further Explanation:

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate( through the process of glycolysis in the cytoplasm).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
The Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly

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