The table below shows the role of different substances during photosynthesis.

Which trait distinguishes between the kingdoms of Bacteria and Archaea?

Arisa [49]

Answer:

I would say that the best answer is A.

Explanation:

Both Bacteria and Archaea, lack a nucleus and are unicellular. Most Archaea have a Cell wall, however there are a few exceptions, all Bacteria have a cell wall. Maybe the biggest difference between the two however, is where they thrive. Archaea live in extreme conditions, while bacteria don't. Due to this, I would say that the best answer is A, because this is the only question with a major difference in answers.

5 0

3 years ago

Read 2 more answers

What is the average life span of juvenile upland game birds

beks73 [17]

Answer:

27 years

Explanation:

3 0

3 years ago

Describe how heat will flow

vlada-n [284]

Answer:

Explanation:

When you bring two objects of different temperature together, energy will always be transferred from the hotter to the cooler object. The objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heat flows from the hotter to the cooler object.

3 0

3 years ago

A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'-CCG-ACG-3' (mRNA). The charged transfer R

xxTIMURxx [149]

Protein synthesis involves transcription and translation. During transcription, mRNA complements the DNI template strand. During translation, mRNA codons specify the amino acids that must be added to the growing polypeptide by tRNA.

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Before answering all these questions, let us review some framework.

Nitrogenated bases that conform nucleic acids correspond to purines and pyrimidines.

Adenine and guanine ⇒ purines,
Thymine, Uracile, and Citocine ⇒ Pyrimidines.

⇒ In the DNA molecule, Adenine always forms pairs with Timine , while Guanine forms pairs with Cytosine.

⇒ In RNA molecule, Timine is replaced by Uracil. So Adenine forms pairs with Uracil, and Guanine forms pairs with Cytosine.

Transcription occurs in the nucleus. The template DNI strand is read in direction 3´→ 5´ to build the mRNA molecule that grows in direction 5´→ 3´.

Translation occurs in the cytoplasm, where a ribosome reads mRNA in the 5´ to 3´ direction. According to the codons being readen, tRNA transfers the correct amino acids to build the polypeptide chain.

Codons are short sequences of three nucleotides that carry the genetic information for the aminoacids´ assembly.

mRNA has start and end codons. Between them, there are codons that code for the amino acids to be added to the chain. The start is the signal of the synthesis initiation. When the ribosome reaches the end codon, protein synthesis is over.

There exists a total of 64 codons.

One of them is the start codon → AUG → Metionine
61 codify amino acids, and
the remaining three are stopping points → UAA, UAG, UGA.

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Now, let us answer the questions.

mRNA ⇒ 5'-CCG-ACG-3'

tRNA ⇒ 3'-GGC-UGC-5' ⇒ tRNA Anticodon
Protein ⇒ Glycine-Cysteine ⇒ dipeptides

GGC codes for Glycine, while UGC codes for Cysteine

tRNA ⇒ AUG ACA ⇒ Anticodons
mRNA ⇒ UAC UGU ⇒ Codons

DNI strand ⇒ CAG
mRNA strand ⇒ GUC

Protein ⇒ Val - His - Thr
DNI Strand ⇒ CAT - GTA - TGG

tRNA ⇒ RNA that functions to use coded instructions to assemble amino acids

RNA ⇒ Transfers genetic information from the nucleus to the cytoplasm ⇒ After transcription and before translation

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8 0

3 years ago

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$