Most orbits are perfect circles.

Drugs are substances that cause a change in a person’s physical, not mental, state. T F

solniwko [45]

the correct answer is false

4 0

3 years ago

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Give an example of a species that has been introduced to the United States and tell what its effect has been

Yuliya22 [10]

Answer:

An introduced species, alien species, exotic species, adventive species, immigrant species, ... Non-native species can have various effects on the local ecosystem. ... Some species have been introduced intentionally to combat pests

Explanation:

4 0

3 years ago

Under anaerobic conditions, such as intense exercise, pyruvate is converted to ____________ . This 3-carbon molecule travels thr

stiv31 [10]

Answer:

Under anaerobic conditions, such as intense exercise, pyruvate is converted to lactate. This 3-carbon molecule travels through the blood to the liver, where it can be converted to glucose by the cori cycle.

Under aerobic conditions, pyruvate enters the mitochondrion, where it is converted to acetyle CoA . This 2-carbon molecule goes on to participate in a series of oxidative reactions called the Citric acid cycle.

Explanation:

In the question ,among the given 6 options ,the simplest way to find the answer can be ,to find either the option is aerobic (presence of free oxygen ) or anaerobic (lack of free oxygen). Among the options , glucose is an incorrect option as it is a carbohydrate and used in respiration process .In aerobic process ,the glucose can be break down but in anaerobic ,it can only be used.

Other option is ATP- ATP is the energy source of the cell and used for storing energy or reactions of the cell,thus this option do not belong to the given question.

thus its clear the rest four options are the answer .

among four two options belong to aerobic and the rest two are anaerobic.

Under anaerobic conditions-

The pyruvate is converted into lactate because under the absence of oxygen only the NAD+ can be regenerated, thus further can allow glycolysis.

The cori cycle is also called lactic acidic cycle, thus this cycle is a metabollic pathway produced by anaerobic glycolysis (which takes place by regeneration of NAD+)transporting the molecules from blood to liver and further converting to glucose

Under aerobic conditions,-

The pyruvate is converted into Acetyle CoA so as to further produce citric acid and then citric acidic cycle. Thus Acetyle CoA forms more ATP which help in the regeneration of NAD+ and production of citric acid cycle takes place.

HENCE , The correct options are - lactate cori acetyle CoA citric acid.

7 0

3 years ago

which of the following statements regarding enzymes is true? (3 points) enzymes increase the rate of a reaction by making the re

ziro4ka [17]

Which is true about enzymes is: enzymes increase the rate of reactions by lowering the activation energy barrier.

Enzymes are chemical compounds in the form of proteins that act as biocatalysts which function to speed up reactions.

Enzymes work specifically, that is, they can only work on certain substrates by adjusting the shape of the substrate. Enzymes sensor with molecules for substrates to produce compounds through organic chemical reactions that require energy. Some of the reactions assisted by enzymes such as the breaking of large molecules into small ones or the binding of molecules into new molecules. Enzymes can do that because of the influence of the activation energy that every chemical reaction has.

Activation energy is the energy required to break down the reactants. The role of enzymes is to lower the activation energy limit needed to start reactions.

Learn more about enzyme at:

brainly.com/question/17320375

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8 0

11 months ago

A student wants to know which part of his local beach contains the most turtle nests during nesting season. He researches turtle

VladimirAG [237]

CONSTRUCTION OF HYPOTHESIS is missing from the experiment. The correct option is B.
A scientific hypothesis is a foundation that must be well laid in any scientific experimental research. A research hypothesis refers to statements made by a researcher which defines his speculations on the outcomes of the research, it is an educated guess that is based on prior knowledge and observations.

5 0

3 years ago

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