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3 years ago

7

Carbon dioxide levels in the beginning of the Industrial Revolution was about 280 ppm (parts per million). If carbon dioxide lev

els have increased 38%, how much carbon dioxide is now in the atmosphere?
737 ppm

386 ppm

10640

8960 ppm

1 answer:

Komok [63]3 years ago

8 0

Answer:386 ppm

Explanation:

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Which describes the process of fermentation?

pav-90 [236]

Explanation:

<u>anaerobic process that restores NAD+ supply</u>

<u></u>

Within cells, aerobic respiration may not occur due to several factors:

- a lack of inorganic, final electron acceptors
-incomplete or lack of a complete electron transport system
-missing genes for enzymes within the Kreb's cycle

Thus, they utilize other means for the generation of energy in the form of ATP and to replenish NAD+ an oxidized form of NADH, the main electron carrier in glycolysis. Pyruvate is produced in the cytoplasm via glycolysis- it is also used as an electron acceptor in a process called fermentation.

Further Explanation:

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

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 Citric acid or 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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2 years ago

Why are antibiotics frequently added to sabouraud agar for isolating fungi from clinical samples?

jonny [76]

Antibiotics such as cycloheximide are frequently added to sabouraud agar for isolating fungi from clinical samples because most fungi grows and multiply slowly at least compared with bacteria that grows rapidly after 24hours. Incorporation of antibiotics into the agar will prevent the growth of bacteria and also other environmental fungal such as Aspergillus spp.

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2 years ago

Where does each chromosome in a pair of homologous chromosomes come from?

vazorg [7]

Earth its come from urs moms licking places

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3 years ago

Compare and contrast the structure of the sun with that of the Earth

Arada [10]

Structure of Sun:

The sun has six layers.

Three layers named as

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• Chromosphere

• Photosphere

These layers comprise the sun’s atmosphere or outer layer.

The other three layers namely

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• Core

Comprises the inner layer or part of sun that are not seen.

Structure of earth:

The structure of earth is divided into layers and these layers are both physically and chemically different.

The earth has an outer solid layer called crust, a viscous layer called the mantel, a liquid layer that is outer layer called outer core and solid center called inner core.

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3 years ago

Ergogenic aids can be useful in some circumstances, some are possibly useful but still under study, and still others are downrig

Jet001 [13]

Answer:

Using beta-hydroxy-beta methylbutyric acid (HMB) can improve performance for those who perform explosive repetitions of activity, such as running or lifting weights. Consuming small amounts of caffeine can increase mint alertness. C. The consumption of branched-chain amino acids and creatine can improve muscle recovery after intense physical activity. D. An ergogenic aid that increases muscle mass but can also cause uncontrolled growth of the heart or other organs and is prohibited by the International Olympic Committee: anabolic steroids.

Explanation:

In the answer I leave you the text with the blanks completed ... It is also important that you know that amino acids are important for the formation of muscle mass and its recovery, in addition to creatinine.

On the other hand, these supplements are administered in people who have high performance in sports, and accompanied by a good diet and specific diet, otherwise they will not work.

Anabolics are chemical structures that promote energy reserves and anabolism for muscle tissue hypertrophy, but they do not have a selective effect on the skeletal muscle, but rather affect other parts of the body, that is why they are risky, cause heart failure, cardiovascular, liver, kidney, and even possible alterations of the gallbladder.

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3 years ago