Ask question

Ask question

All categories

2 years ago

14

Every ribosome has three tRNA binding sites: the A site, the P site, and the E site. For the given sentences, select the correct

site from the drop-down menu.
a. The _________site binds the tRNA molecule that is attached to the growing peptide chain.
b. The site that binds the aminoacyl-tRNA is the______ .
c. The _______ site may be bound to deacylated (uncharged) tRNA.
d. The site that binds the peptidyl-tRNA is the_______.

2 answers:

alex41 [277]2 years ago

8 0

Answer:

A. All sites B. A site C. E site D. P site

Explanation:

A. Because all sites consequently take place while peptide is synthesized.

B. A site (aminoacyl site) is called so because it binds to charged aminoacyl peptide.

C. Because it is the exit site and it takes the final stage on the uncharged molecule.

D. The P site (peptidil site which takes main role in peptide synthesis.

Delvig [45]2 years ago

4 0

Answer:

a. P

b. A

c. E

d. P

Explanation:

Hello,

Based on the answers and the attached picture describing such process:

A. The P site holds the tRNA carrying the growing polypeptide chain.

B. That is A site and it called aminoacyl-tRNA since it binds to the charged aminoacyl peptide.

C. E site is the exiting site, therefore it turns out being the final stage on the uncharged molecule.

D. At the P site, the peptidyl-tRNA is bind to promote the peptide synthesis.

Best regards.

You might be interested in

A solution is made by dissolving 58.125 g of sample of an unknown, nonelectrolyte compound in water. The mass of the solution is

e-lub [12.9K]

Answer:

molecular weight (Mb) = 0.42 g/mol

Explanation:

mass sample (solute) (wb) = 58.125 g

mass sln = 750.0 g = mass solute + mass solvent

∴ solute (b) unknown nonelectrolyte compound

∴ solvent (a): water

⇒ mb = mol solute/Kg solvent (nb/wa)

boiling point:

ΔT = K*mb = 100.220°C ≅ 373.22 K

∴ K water = 1.86 K.Kg/mol

⇒ Mb = ? (molecular weight) (wb/nb)

⇒ mb = ΔT / K

⇒ mb = (373.22 K) / (1.86 K.Kg/mol)

⇒ mb = 200.656 mol/Kg

∴ mass solvent = 750.0 g - 58.125 g = 691.875 g = 0.692 Kg

moles solute:

⇒ nb = (200.656 mol/Kg)*(0.692 Kg) = 138.83 mol solute

molecular weight:

⇒ Mb = (58.125 g)/(138.83 mol) = 0.42 g/mol

8 0

2 years ago

When monomers combine to form a condensation polymer, another product is also formed. typically, this product is _____. methanol

shtirl [24]

Water is the answer!

4 0

2 years ago

Read 2 more answers

Which two rocks are primarily composed of a mineral that bubbles with acid?

Marianna [84]

To most geologists, the term "acid test" means placing a drop of dilute (5% to 10%) hydrochloric acid on a rock or mineral and watching for bubbles of carbon<span> dioxide gas to be released. The bubbles signal the presence of carbonate minerals such as</span>calcite<span>, </span>dolomite<span>, or one of the minerals listed in Table 1.</span>

8 0

2 years ago

If 36.9 mL of B2H6 reacted with excess oxygen gas, determine the actual yield of B2O3 if the percent yield of B2O3 was 75.7%. (T

zhuklara [117]

Answer: The actual yield of $B_2O_3$ is 60.0 g

Explanation:-

The balanced chemical reaction :

$B_2H_6(l)+3O_2(g)\rightarrow B_2O_3(s)+3H_2O(l)$

Mass of $B_2H_6$ = $Density\times Volume=1.131g/ml\times 36.9ml=41.7g$

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

$\text{Moles of} B_2H_6=\frac{41.7g}{27.668g/mol}=1.51moles$

According to stoichiometry:

1 mole of $B_2H_6$ gives = 1 mole of $B_2O_3$

1.51 moles of $B_2H_6$ gives = $\frac{1}{1}\times 1.51=1.51$ moles of $B_2O_3$

Theoretical yield of $B_2O_3=moles\times {Molar mass}}=1.14mol\times 69.62g/mol=79.3g$

Percent yield of $B_2O_3$ = $75.7\%$

$\%\text{ yield}=\frac{\text{Actual yield}}{\text{Theoretical yield}}\times 100$

$75.7\%=\frac{\text{Actual yield}}{79.3}\times 100$

${\text{Actual yield}}=60.0g$

Thus the actual yield of $B_2O_3$ is 60.0 g

7 0

2 years ago

Which correctly lists the three methods of heat transfer?

dalvyx [7]

Answer: conduction, convection, radiation

explanation: heats transferred using these three methods and all of them are used in different ways, convection is heat through solids, conduction being used as liquid/gas, radiation being used as electromagnetic waves.

hope this helped!!

7 0

2 years ago

Read 2 more answers