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iragen [17]
3 years ago
6

HELP ASAP!! WILL TRY TO GIVE BRAINLIEST

Physics
1 answer:
iris [78.8K]3 years ago
5 0
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.
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R1=3 ohms
brilliants [131]

Answer: current I = 1.875A

Explanation:

If the resistors are connected in series,

Then the equivalent resistance will be

R = 6 + 18 + 15 + 9

R = 48 ohms

Using ohms law

V = IR

Make current I the subject of formula

I = V/R

I = 90/48

I = 1.875A

And if the resistors are connected in parallel, the equivalent resistance will be

1/R = 1/6 + 1/18 + 1/15 + 1/9

1/R = 0.166 + 0.055 + 0.066 + 0.111

R = 1/0.3999

R = 2.5 ohms

Using ohms law

V = IR

I = 90/2.5

Current I = 35.99A

3 0
3 years ago
What necessary information is missing from this formula page? W-work F-force x-distance Work = force(distance) W = Fx a. Formula
Nataliya [291]

Answer:

it should be Work = F * d * cos(theta)

Explanation:

Force is mass * acceleration, and displacement is the distance between the starting and ending point.

we need theta because it can be used to calculate work when going up an incline surface. And we tend to use cosine because we are assuming that our motion is primarily in the X direction.

5 0
3 years ago
If a car accelerates at a uniform 4.0 m/s, how long will it take to reach a speed of 36.0 m/s,
11111nata11111 [884]

Answer:

9s

Explanation:

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36=0+4t

t=36-0/4

t=9s

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stira [4]

the strength and vitality required for sustained physical or mental activity.

5 0
4 years ago
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Which of the following is not an example of potential energy? chemical energy, gravitational energy, thermal energy, nuclear ene
uranmaximum [27]

Answer:

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Explanation:

7 0
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