Caso um paciente autorize a aplicação de celulas tronco no miocardio, essas celulas têm linhagem celular relacionada com

How can pollution reduce the rate of photosynthesis? Research work (60-90 words) unnecessarily,useless answers will be reported

Anna71 [15]

$\huge\mathcal\green{answer}$

Air pollution has become an extremely serious problem. Air pollutants affect both plants and animals. Under polluted conditions, plants develop different physiological, morphological and anatomical changes. Pollutants cause damage to cuticular waxes by which then they enter the leaves through stomata. This further leads to injury to plants which can be either acute or chronic. Changes in stomata due to air pollutants which seem to be small can be of great consequence with respect to survival of the plant during stress. These effects can further lead to disturbing the water balance of leaf or whole plant. Respiration also gets affected because of the exposure of plants to air pollutants. The present paper deals with the effect of air pollutants on stomata as well as on respiration leading to affect gaseous exchange.

$\huge\mathcal\green{hope \: this \: may \: be \: helpful}$

$\huge\mathfrak\green{mark \: as \: bainliest}$

8 0

3 years ago

What are three things squirrels do to survive?

mrs_skeptik [129]

Answer:

Fox squirrels feed mainly on hickory nuts and acorns, but also eat the fruit of tulip poplar, maple tree seeds, corn bordering woods, berries, bird eggs and fungi. Gray squirrels feed primarily on nuts, especially hickory nuts, acorns, beechnuts and walnuts.

4 0

2 years ago

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Below is a mature eukaryotic mRNA transcript. Translate this mRNA into a protein, also showing the tRNA anticodons involved. Mak

diamong [38]

Answer:

mRNA ⇒ 5'GMU UAC AUG CGG CUC AGU UGA GGC GAA AAA A 3'

tRNA ⇒ UAC GCC GAG UCA ACU

protein ⇒ N - MET ARG LEU SER Stop - C

Explanation:

In protein synthesis, the ribosome reads mRNA in the 5´ to 3´ direction, and, according to the codons that are being readen, tRNA transfers the correct amino acids to build the polypeptide chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.

Once the new amino acid links to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.

The protein is synthesized from the amino terminus to the carboxy terminus, while the added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches the end codon, protein synthesis is over.

Each of the codons represents one of the 20 amino acids used to build the protein. Each amino acid can be codified by more than one codon. From the total 64 codons, 61 codify amino acids, and one of them is a start codon. The left three codons are stopping translation points.

The codons indicating the initiation or stop points during the translation process are:

• The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule.

• The end codons are UAA, UAG, UGA.

Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.

In the exposed example we have the following mRNA.

mRNA ⇒ 5'GMU UAC AUG CGG CUC AGU UGA GGC GAA AAA A 3'

Codons are separated by a space left between them. AUG is the start codon placed near the 5´ extreme. UGA is the end codon near the 3´ extreme. tRNA will add amino acids from the start codon, not before.

tRNA ⇒ UAC GCC GAG UCA ACU

Anticodons are separated by a space left between them.

protein ⇒ N - MET ARG LEU SER Stop - C

Each mRNA codon codifies for an amino acid. The start codon codifies for methionine. AUG = Met, CGG = Arg, CUC = Leu, AGU = Ser, UGA = Stop codon. The amino terminus is represented as an N and the carboxy terminus is a C. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.

5 0

3 years ago

During the second postpartum hour after a long labor and difficult birth, a nurse identifies that the client has heavy vaginal b

Sholpan [36]

The nurse should say, "I know you may be hard; but, it's for your own benefit that you wait until the bleeding has subsided. I can do anything else to assist you except that." The client should avoid receiving anything for his or her mouth due to the heavy bleeding. Giving the patient a drink could cause problems such as coughing or agitation.

4 0

3 years ago

In two or more complete sentences, describe a geotropism response.

snow_lady [41]

Gravitropism (also known as geotropism) is a turning or growth movement by a plant or fungus in response to gravity. It is a general feature of all higher and many lower plants as well as other organisms. -google

3 0

3 years ago