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3 years ago

2. What may happen to an alcoholic if he or she suddenly stops drinking?

Biology

2 answers:

Ludmilka [50]3 years ago

6 0

4.
when you are addicted usually you might have withdrawals.

Ksenya-84 [330]3 years ago

3 0

Answer:

Explanation:

Withdrawal is different for everyone; there really is no "normal" and it can be hard to predict an individual person's experience. Some symptoms—like changes in sleep patterns, fatigue, and mood swings—can last for weeks or months. You'll likely begin to feel better around five days to a week after you stop drinking

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How can sedimentary be changed through igneous rocks and then into metamorphic rocks

Vsevolod [243]

Through immense amounts of heat that come from the phase of mountain building, it will cause the amount of heat and pressure that will cause the rocks to go through the rock cycle of bending, folding, crushing, flattening, and shearing to become a metamorphic rock. Metamorphic rocks through all the compact pressure and heat will become way harder than that of a sedimentary rock which will indicate that of a metamorphic rock.

Hope this helps!

8 0

3 years ago

What is osmosis? Describe this process including the types of molecules that move and the energy required. Include in your descr

Alika [10]

Answer:

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

Explanation:

4 0

3 years ago

PLEASE solve number 1 and 2 because i don’t get it , don’t mind my answers

Readme [11.4K]

Answer:

1) RNA strand = UCA GCA AAU

2) Amino acids: Asparagine Arginine Stop

(ASN) (ARG) (STOP)

Explanation:

Some theory that you need to know to answer the question:

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 through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA. Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid.

tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.

Once the new amino acid joins 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.

Now, to fill in the boxes, you need to pay attention to two things:

• Anticodon: In this box, you need to place the sequence of bases that pairs with the mRNA codon.

• Amino Acid: In this box, you need to place the amino acid that is codified by the mRNA codon.

For instance, let us say that the codon of mRNA is CUC. The anticodon for this sequence is GAG (because guanine joins cytosine and adenine joins uracyl).

The amino acid places on the 3´extreme of the tRNA molecule will be the one that is codified by the codon, NOT the anticodon. So, as the codon is CUC, the amino acid will be Leucine, Leu. Do not use the anticodon GAG to fill these boxes. Remember that tRNA is translating information carried by the mRNA, so we need to use this information to grow the protein.

Strand of DNI → AGT CGT TTA

Each of these letters are bases → Adenine, A - Guanine, G - Thymine, T - Cytocine, C
Each of these three-lettered groups are codons.

So, we need to pair these bases, knowing that:

Adenine (A) and guanine (G) derive from purines, while Thymine (T) Uracile (U), and Cytosine (C) derive from Pyrimidines.

In the DNA molecule, Adenine (Purine) always pairs with Timine (Pyrimidine), while Guanine (Purin) forms pairs with Cytosine.

In the RNA molecule, Adenine is paired with Uracil, U. So, whenever there is an Adenine in the DNI strand, it pairs with Uracil of RNA strand. If there is a Thymine in the DNI strand, it pairs Adenine of the RNA strand. And, as always, Guanine pairs with Cytosine.

A ⇒ U
T ⇒ A
G ⇔ C

Knowing how to pair bases, we can fill the RNA molecule boxes.

Strand of DNI → AGT CGT TTA
Strand of RNA → UCA GCA AAU

A ⇒ U C ⇒ G T ⇒ A

G ⇒ C G ⇒ C T ⇒ A

T ⇒ A T ⇒ A A ⇒ U

Now we need to translate these new codons of mRNA to amino acids.

To fill the boxes you should have a genetic code chart to see the codons that codify for each amino acid.

Codon: AAU CGA UAG

Amino acids: Asparagine Arginine Stop

(ASN) (ARG) (STOP)

The new protein is synthesized from the amino terminus to the carboxy terminus of the mRNA molecule. 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 a stop codon, protein synthesis is over.

8 0

3 years ago

Read the procedure. What is the purpose of the bicarbonate that is dissolved in the water?

xxTIMURxx [149]

Answer:

Through this experiment we study the process of photosynthesis.

• In the begining the leaf disks's tissue has oxygen, this allows them to float.

• Then, in the experiment we infiltrate the leaf disks with a solution that has bicarbonate, and as a result their density changes (it increases) and so the leaf disks sink.

• Once the disks are on the bottom and we direct the light to them the process of photosynthesis starts, being the bicarbonate the source of carbon for the process.

• As we know a product of the photosynthesis proces is oxygen, so when it is released into the leaf disks the overall density changes again and the disks rise.

So as we can see, in this experiment the purpose of the bicarbonate is being the source of carbon for the process of photosynthesis that occurs in the leaf disks.

5 0

1 year ago

The process of mitosis helps maintain your body in what ways

bulgar [2K]

Mitosis is a type of cell division in which chromosomes number remains constant...mitosis helps in growth , repairing of wounds ,cell replacement, and asexual reproduction...

7 0

3 years ago

Read 2 more answers