Physics, 25.12.2020 23:10 vazquezemmy8

HELP ASAP!! WILL TRY TO GIVE BRAINLIEST How are ribosomes different from other complex animal cell organelles?

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Most Organelles Have Membranes, Ribosomes Do Not

Other organelles in the cell, such as the mitochondria and lysosomes, are enclosed by lipid membranes that separate them from other structures in the cell. Ribosomes exist as free structures that float throughout the cytoplasm of the cell. They do not have membranes, which allows them to pick up translational RNA released from the nucleus and grab onto free amino acids in order to produce protein chains.

Ribosomes Consist of Two Units

Ribosomes have a two units. The smaller unit reads the messenger RNA and the larger unit functions to link the amino acids to form the protein chain. When a ribosome is not producing proteins, these units are separated. Most other organelles are larger than ribosomes and a cell can hold a few thousand ribosomes.

Hooking Up with the Endoplasmic Reticulum

Ribosomes can become membrane bound by the endoplasmic reticulum, an organelle that serves to package proteins in order for them to be transferred to other areas of the cell or for transport outside of the cell. The ribosomes become attached to only one side of the endoplasmic reticulum and this region is called the rough endoplasmic reticulum.

Free Floating Protein Production

Free floating ribosomes make proteins that are usually used in the cytoplasm of the cell. Free ribosomes are not different from bound ribosomes. The cell can even change the number of ribosomes needed depending on the protein production needs of the cell.

Answer from: Quest

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6 $\frac{m}{s^{2} }$

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

Answer from: Quest

explanation:

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