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3 years ago

Which of the following is FALSE about ribose and nucleotide and

Biology

1 answer:

Alex_Xolod [135]3 years ago

6 0

Answer:

The correct answer is option c) "It is necessary to have a completely functioning pentose phosphate pathway for a tissue to synthesize ribose phosphates".

Explanation:

While the pentose phosphate pathway is the most common way at which a tissue synthesize ribose phosphate, it is false to affirm that it is necessary for ribose phosphate synthesis. Tissues have alternatives to the pentose phosphate pathway to synthesize ribose phosphate. For instance, the nucleotide salvage or the salvage pathway allows tissues to synthesize ribose phosphate from intermediates in the degradative pathway for nucleotides.

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Proteins destined for the following locations are sorted in the trans-Golgi:

taurus [48]

Answer:

Explanation:

Golgi apparatus is an organelle in eukaryotic cells that stores and modifies (might include addition of sugar groups) proteins and lipids for certain functions and prepare them for transport to other parts of the cell.

In the Endoplasmic reticulum, proteins fold into into their correct shape. Some of them are transported to the Golgi apparatus in membrane vesicles. Some proteins need to do their jobs in the Golgi (they are said to be Golgi-resident). They are transported from the golgi appratus to their final destinations through a secretory pathway. It involves sorting proteins into different kinds of transport vesicles, which emanate from the trans Golgi network and deliver their contents to the appropriate cellular locations.

Proteins that are membrane embedded are conveyed to the plasma membrane (integral membrane proteins) by constitutive secretion. Proteins can divert from constitutive secretion pathway and be targeted towards other destinations such as lysosomes (as lysosomal proteins) and regulated secretion from cells (to the cell exterior).

8 0

3 years ago

Which of the following is not a natural cause of extinction?

dedylja [7]

Answer:

Introduction of Non-native species would be the answer. ( B )

Explanation:

Now let's break it down.

A. Competition due to overpopulation

Competition due to overpopulation, as competition of resources rises, species will fight among each other, and slowly, population will go down. But I don't see the reason of why it would cause an extinction... perhaps a decrease of population. See, once populations starts decreasing, resources will increase. And ONCE resources increase, populations starts increasing, and there goes competition. Resources decreases, populations decreases, and the whole process repeats. So I'm not quite sure whether it will cause extinction of a species.

B. Introduction of Non- native species.

So what does it mean by Non-native species?

It means that species that have no effect and doesn't exist in the ecosystem. So that will definitely not affect the population whatsoever.

C. Catastrophic Events

Well, common sense. Many people died of tsunamis, tornado and other natural disasters every year. Too many disasters can cause the population to cease.

D. Disease

This we can relate, especially the Coronavirus. Many humans died of the deadly virus. Same goes to animals. If a disease gets too deadly, population will decrease and drive the species to extinction.

So, the Answer would be B.

<h2>HOPE THIS ANSWER HELPED :)</h2>

3 0

3 years ago

What do we mean when we say that there is a "Consilience of Evidence" supporting a theory?

Gnoma [55]

The correct answer is C) That scientists who have worked on the theory have independently and repeatedly come to the same conclusions over time.

Explanation:

In science, the term "consilience of evidence" is used when the evidence of a hypothesis or theory is consistent especially evidence from independent scientists or sources. This often implies the theory has been tested many times and by different experts and even using different methods but the results are always the same. This consilience of evidence is essential to declare a theory as valid and concluding. In this context, the option that describes the meaning of this term is C.

4 0

3 years ago

Which evolutionary mechanism caused the increase in dark-colored Biston betularia moths in England in the 1800s? genetic drift n

SashulF [63]

Answer:

Natural Selection is an evolutionary process that caused the increment of dark-coloured Biston betularia moths in England. It happened due to increase of air pollution in the industries. The bark of the trees became darker because of the deposition of pollutants.

In order to save itself from predators, the species of Biston betularia evolved itself to a dark coloured species so that the predators gets confused between the bark of the tree and the Biston betularia.

3 0

3 years ago

Different mating habits cause two groups within a population to be less likely to mate with each other. as a result, reproductiv

Arte-miy333 [17]

Geographic isolation or speciation

6 0

3 years ago

Read 2 more answers