Biology, 31.08.2021 16:50 chanthonymjones

CFTR is present in many other types of epithelial cells, including in the lung and in the pancreas. Cholera does not typically affect these tissues, since infection occurs in the gut, and cholera toxin does not move into the bloodstream. However, some people have a mutation in CFTR that decreases its activity, and thus reduces the release of chloride ions from the cytosol of epithelial cells into the lumen of these organs. Which of the following are the most likely consequences of such CFTR mutations? a. no change in fluid secretion from the tissues where CFTR is expressed
b. decreased fluid secretion from the tissues where CFTR is expressed
c. increased fluid secretion from the tissues where CFTR is expressed
d. no change in susceptibility to cholera infection
e. decreased susceptibility to cholera infection
f. increased susceptibility to cholera infection

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Answer from: Quest

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports the evolution of earth due to chemical weathering.

hope it !

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Digestion because it removes waste

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Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of amino acids , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in genes . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called transcription ), and the mrna is transported to the ribosome . protein synthesis, also called translation , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the nucleotides of mrna three by three, in units called codons , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the amino acid chain goes on to be processed and folded to make the final, functional protein

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The vascular system

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CFTR is present in many other types of epithelial cells, including in the lung and in the pancreas....

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