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Phantasy [73]
3 years ago
15

While Louis Pasteur helped to elucidate the lactic fermentation carried out by various sugar-fermenting bacteria, he originally

categorized as acid-fermenting micro-scaled worms versus fermentative bacteria.True / False.
Biology
1 answer:
Licemer1 [7]3 years ago
4 0

Answer:

False

Explanation:

  • The discovery of the process of fermentation dates back to 1860 when the French chemist Louis Pasteur performed a series of experiments that proved that glucose could be converted into alcohol only in the presence of fermenting bacteria and yeast.
  • His experiments involved measuring the multiplication of yeast and the rate of alcohol production. He found out that the fermentation rate and the reproduction of yeast were directly proportional. Alcohol was produced as long as the yeast remained alive.
  • Therefore, through experimentation, Louis Pasteur demonstrated that only microorganisms could ferment sugars into alcohol.
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Need help on this plz help!!
nydimaria [60]

Tin, because it has five energy levels with four electrons in the fifth level .

Explanation:

Tin has an electronic configuration as

1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2

They have four valence electrons in their outer shell

Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.

The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.

6 0
3 years ago
Which class of enzymes catalyzes reactions involving the formation of double bonds?
vodka [1.7K]

Lyases

Lyases are class of enzymes that catalyzes reactions involving the formation of double bonds.

Lyases are class of enzymes that catalyzes the joining of C-C ( carbon to carbon), C-O (carbon to oxygen), and C-N (carbon to nitrogen) bonds by hydrolysis or oxidation. These bonds are usually held by the process of elimination which leads to the formation of new double bonds or cyclical molecules. Examples of lyases include; aldolase and adenylate cyclase.


8 0
3 years ago
The molecule which transfers the information from the nucleus
____ [38]
Answer: B) RNA

The mRNA is an RNA version of the gene that leaves the cell nucleus and moves to the cytoplasm where proteins are made.
4 0
3 years ago
The Energetic Cost of Mismatch Repair. In an E. coli cell, DNA polymerase III makes a rare error and inserts a G opposite an A r
joja [24]
The séquense of GATC is 751
6 0
3 years ago
The inheritance of the petite phenotype in Saccharomyces cerevisiae is complicated by an interaction of mitochondrial and nuclea
MA_775_DIABLO [31]

Answer:

Option B

Explanation:

The three categories of petites are segregational, neutral, and suppressive and both nuclear and cytoplasmic (mitochondrial) genes contribute to the petite phenotype in some cases. Suppressive petites are characterized by perfoming crosses between petite and wild-type and discovering that all offspring are petite, this exhibit a "dominant" behavior which suppresses wild-type mitochondrial function and not a lack of mitochondrial function.

5 0
3 years ago
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