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2 years ago

Treponema and Borrelia A. are luminescent.B. are endosymbionts.C. are spirochaetes.D. are both easily grown on artificial media.

Biology

1 answer:

Bumek [7]2 years ago

4 0

Answer:

C. are spirochaetes

Explanation:

Treponema and Borrelia are two genus belonging to the phylum Spirochaetes. It is a bacterial phylum consisting of unusual double membrane bacteria. This property makes the location of flagella different from other bacteria. Their flagella is located in periplasmic space between the inner and outer membrane which causes a twist motion. They reproduce by binary fission. They have chemotrophic mode of nutrition. Most of them are anaerobic and free living with some exceptions. Spirochaetes is a very diverse group of bacteria with variety in the niches, molecular characteristics and pathogenic capacity.

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Answer the question please it’s 50 or 25 points

Mashcka [7]

4 is nucleus because it’s in the middle

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3 years ago

Read 2 more answers

The ATP yield for a molecule depends on where it enters glycolysis or the citric acid cycle. The yield can be compared to the ne

Andru [333]

Answer:

a) The net ATP yield from fructose 1,6‑bisphosphate is 32 ATP

b) The net ATP yield from galactose is 30 ATP

c) The net ATP yield from dihydroxyacetone phosphate is 16 ATP

d) The net ATP yield from pyruvate is 12.5 ATP

e) The net ATP yield from lactate is 14 ATP

f) The net ATP yield from phosphoenolpyruvate is 13.5 ATP

Explanation:

a) In this case, 2 ATP molecules are not used for the phosphorylation of glucose for the production of fructose bisphosphate 1.6, thus, the net ATP yield is 32 ATP.

b) Galactose is converted to glucose-1-phosphate through reactions that lead to phosphorylation. Glucose-1-phosphate is transformed into glucose-6-phosphate by the enzyme phosphoglucomutase. Later it is used in glycolysis, thus, the net ATP yield is 30 ATP.

c) The fructose 1,6 bisphosphate is decomposed in glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. Dihydroxyacetone phosphate is isomerized to glyceraldehyde -3-phosphate. ATP performance is (2.5+2.5+11) = 16 ATP

d) Pyruvate is decarboxylated oxidatively to produce acetyl-CoA. ATP yields are:

Glycolysis = 0

Oxidative decarboxylation = 2.5 ATP

TCA cycle = 10 ATP

The net yield is 2.5 + 10 = 12.5 ATP

e) Lactate is oxidized to pyruvate by the enzyme lactate dehydrogenase with a reduction of NAD. Pyruvate is brought into the mitochondria, where it is decarboxylated oxidatively to produce acetyl-CoA. If 1.5 ATP is assumed for cytosolic NADH, therefore 1.5 is produced. So, the net yield is: 12.5 + 1.5 = 14

f) Phosphoenolpyruvate is converted to pyruvate by ATP production through phosphorylation. ATP yield is as follows:

Glycolysis = 1

Oxidative decarboxylation = 2.5 ATP

TCA cycle = 10 ATP

The net yield is 1 + 2.5 + 10 = 13.5 ATP

6 0

3 years ago

. Landfill are is a/an: (a) open area (b) high lying open area (c) open area near a river/lake (d) low lying open area

anyanavicka [17]

Answer:

Explanation:

Landfills are low-lying open areas specifically designed for the dumping of waste materials to be buried later.

Landfills can be for municipal/household wastes, industrial wastes, or for hazardous wastes. They are usually low lying to facilitate their burial after they must have been filled-up and they represent one of the oldest methods of disposing wastes.

<em>Landfills are not just open areas, they are low-lying as opposed to high-lying, and they are not created near rivers or lakes.</em>

<em>The correct option is, therefore, d. </em>

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3 years ago

Suppose the fictional condition lycanthropy is an autosomal dominant disorder that causes an affected person to have a strong ph

hodyreva [135]

Answer:

Sperm undergo more mitotic cellular divisions than egg and therefore have a higher risk of developing a spontaneous mutation.

Explanation:

As you have seen in the question above, lycanthropy is a mutation that is more likely to be established as the supply of male gametes comes from older men. This is because sperm undergo more mitotic cell divisions than eggs, and therefore are at greater risk of developing a spontaneous mutation.

In order for you to understand this, you need to know that eggs (which are female gametes) are produced at once in a woman's body. Thus, cell division is limited and therefore the opportunity for spontaneous mutations to occur is also limited. However, men produce sperm from adolescence to death, creating the need for countless cell divisions, which can develop genetic errors that create spontaneous mutations in gametes.

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3 years ago

4. Is being struck by lightning always fatal? What are a person's chances of surviving?

Mrrafil [7]

Although it's rare, with the odds of getting struck in your lifetime being roughly 1 in 12,000, every now and then a human will provide an attractive target for lightning bolts to unleash their power. And of the roughly 500 people who are struck by lightning each year, about 90 percent survive.

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3 years ago