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zysi [14]
3 years ago
14

Which one of the following statements about ribosomes is true?

Biology
1 answer:
Jobisdone [24]3 years ago
8 0

Answer:

D) There are two major subunits, each with multiple proteins.

Explanation:

The ribosome is a complex structure made of RNA and proteins. Both prokaryotic and eukaryotic ribosomes have two subunits: small and large subunits. Each of these subunits is made of specific types of ribosomal RNAs (rRNA) and a number of different proteins.

For example, the 30S subunit of <em>E. coli</em> ribosome has 21 different proteins while its 50S subunit is made of 33 different types of proteins along with rRNA.

Likewise, the 40S subunit of a eukaryotic ribosome is made of 33 proteins while its 60S subunit has 47 proteins. The eukaryotic ribosome contains a total of 80 different proteins.

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The parts of cell that are common to all eukaryote cells are:
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Nucleus.
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5 0
3 years ago
What activation energy was used to start the chemical reaction in the burning marshmallow?
Sonja [21]

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, let's understand some terms

Activation energy is the minimum amount of energy required for a reaction to proceed. Under normal condition, when the activation energy is high, it takes longer for the reaction to proceed than when it is low.

The burning of marshmallow is an exothermic reaction as it involves the transfer of heat energy into the environment.

7 0
3 years ago
Why do most stars not necessarily die in the time we would normally expect them to?
Ivanshal [37]
The reason why stars does not die when it is there time is because they tend to fuse in different and more heavier elements. In that way, it prevents them from dying for they were able to have the components of different elements, extending their lives and prevent themselves from dying on the time that they were supposed to.
4 0
3 years ago
The enzyme responsible for ATP production?
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The enzyme is synthase

5 0
2 years ago
The medical term ____________________ describes the swelling of the optic nerve at the point of entrance into the eye through th
quester [9]

The optic nerve swelling as it enters the eye through the optic disk is known medically as papilledema.

<h3>What results in eye papilledema?</h3>

Increased pressure from the brain and CSF on the optic nerve causes papilledema. The nerve swells as a result of the pressure as it enters the eyeball at the optic disc.

<h3>What causes papilledema most frequently?</h3>

The most frequent causes of papilledema without IIH were cerebral venous sinus thrombosis, intracranial tumor, and intracranial hemorrhage.

<h3>What occurs when a person has papilledema?</h3>

The following list of papilledema symptoms is possible: loss of vision or blurred vision The optic nerve, which regulates your vision, is subjected to physical pressure as a result. Blurred vision or visual loss in one or both eyes are common symptoms of optic nerve compression.

learn more about papilledema here

<u>brainly.com/question/15197155</u>

#SPJ4

7 0
1 year ago
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