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SVEN [57.7K]
3 years ago
7

Which sequence best summarizes lactic acid fermentation?

Biology
2 answers:
Ivenika [448]3 years ago
5 0

Answer;

D) glucose → lactic acid + energy

Explanation;

Fermentation refers to the process in which energy in form of ATP is generated in the absence of oxygen, through glycolysis alone.

Thus, Lactic acid fermentation is a type of anaerobic respiration that takes place in the muscle cells in which glucose is broken down to yield fast energy and lactic acid as a byproduct.

This type of anaerobic respiration converts pyruvate, final product of glycolysis, to lactic acid with regenaration of NAD+, which allows a continued production of ATP by glycolysis. Therefore, the muscles continues to produce energy when oxygen levels are low.

AlladinOne [14]3 years ago
5 0

Answer:

(D). glucose → lactic acid + energy

Explanation:

Lactic acid fermentation can be defined as a metabolic process, which involves conversion of glucose into energy and lactic acid molecules.

It takes place in anaerobic conditions and takes place in some anaerobic bacterial cells and yeast cells. Animal cells, such as muscle cells also perform lactic acid fermentation under hypoxic conditions.

Thus, the correct answer is option (D).

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Protists are very diverse, and many different classification schemes have been used to define relationships between the protists
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Answer:

D. heterotrophic by ingestion, pseudopods

Explanation:

Protists are generally classified  as all eukaryotic organisms that are not plants, animals or fungi. Example is amoeba, paramecium etc.They may be unicellular or multi cellular in nature.Most exist in colonies.

Their mode of nutrition can be photosynthetic or hetrotrophic. Hetrotrophic  protists   can be divided into  phagotrophs and osmotrops/saprotrophs. The phagotrophs  makes use of the cell body to engulf the food materials as  in amoeba ,carry out extracellular digestion before swallowing it.

Osmotrops absorbed dissolved food from surrounding liquid environments directly. (Some photosynthetic protists can also be heterotrophic.

Amoeboid movement is the mode of locomotion of protists and some  other eukaryotes. It involved the protrusion of cytoplasm, which exert pressure on the cell membrane to form pseudopodia and  the posterioly  evolved  <u>Uropods. </u>

<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

<u>The false feet(psuedopodium) drags the amoeba  along in the direction of the flow of the cytoplasm.</u>

Therefore option D is  the right option

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