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elena-14-01-66 [18.8K]
3 years ago
7

If skeletal muscles work to the point of fatigue, the muscle cells may not have sufficient oxygen to carry out aerobic respirati

on. What processes do muscle cells use if oxygen is not available for aerobic respiration? electron transport chain ethanol fermentation lactic acid fermentation glycolysis
Biology
2 answers:
Doss [256]3 years ago
8 0

Answer:

Lactic acid fermentation

Explanation:

Lactic acid fermentation is the process that is utilized by the cell to produce energy in the form of ATP. it is the process by which glucose and other six-carbon sugars and also some disaccharides are converted into energy and the metabolite lactate, which is lactic acid in solution.

Due to the absence of oxygen, this process converts 3-carbon pyruvate to the 3-carbon lactic acid in the cytoplasm producing NAD+, allowing glycolysis to continue to produce ATP in low-oxygen conditions. although accumulation of lactic acid can lead to cramps.

anastassius [24]3 years ago
4 0

Answer:

Lactic acid fermentation

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A man who has type B blood has children with a woman who has type A blood. A. If they are both heterozygous for this trait, pred
Ivenika [448]

Answer:

The possible blood types of their children are: type AB (iAiB), type A (iAi), type B (iBi), type O (ii)

Explanation:

Blood type in humans is controlled by a gene with multiple alleles. Alleles iA and iB are dominant over allele i but co-dominant. The following blood types are encoded by the following alleles:

Blood type AB - iAiB

Blood type A - iAiA or iAi

Blood type B - iBiB or iBi

Blood type O - ii

According to this question, a man who has type B blood has children with a woman who has type A blood. They are both heterozygous, meaning that the man's genotype is "iBi" while the woman's genotype is "iAi". Both parents will produce gametes as follows:

iBi = iB and i

iAi = iA and I

Using these gametes in a punnet square (see attached image), the following possible blood types are produced in the offsprings:

- type AB (iAiB)

- type A (iAi)

- type B (iBi)

- type O (ii)

6 0
3 years ago
What is a toxic chemical produced by our excretory system called.
slega [8]

Answer: ammonia

Explanation: Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder

4 0
2 years ago
In an experiment discussed in class, Francis Crick isolated revertants of the mutation FC0. FC0 is a ( ) frameshift mutation in
mariarad [96]

Answer:

The correct option is that its a ( ) frameshift mutation, just like the FC0 mutation.

Explanation:

Frame-shift mutations refer to an event of insertion or deletion at the level of DNA sequence. This effects the way (i.e., in what frame) the genetic code is read. These kind of mutations result in producing a dysfunctional protein product., which may be longer or shorter in length to the actual normal protein that was supposed to be made. A premature stop codon will create a truncated protein.

Hope that answers the question, have a great day!

8 0
3 years ago
In order for speciation to occur organisms can no
kirill [66]

Answer:

Reproductive isolation

Explanation:

The definition of speciation is "the formation of new and distinct species in the course of evolution." Because a new a distinct species is formed, even if not physically isolated, they can not interbreed because two species can not reproduce with each other. Therefore, the answer is Reproductive isolation, because speciation will still occur even without physical isolation.

7 0
3 years ago
Read 2 more answers
How is fermentation different from cellular respiration?
pishuonlain [190]
Fermentation is glycolysis on a cycle, and is done repeatedly with no oxygen.  Cellular respiration has three station and requires oxygen.  
6 0
3 years ago
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