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Dvinal [7]
2 years ago
6

In how many years will there be left until the sun explodes ?

Biology
1 answer:
Diano4ka-milaya [45]2 years ago
4 0

Answer:

around 5 billion

Explanation:

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Mrs. marsden slipped on the ice last winter and fractured several lumbar vertebrae. since then she has required pain management
Artist 52 [7]
<span>The cpt codes that should be reported for this procedure are as follows: 64493-50, 64494-50. The reason for this is that these codes are for the injection of the lumbar. 64493 is the injection specifically, and 64494 is referencing L4. The -50 is added to show that the injection was done on both sides.</span>
8 0
3 years ago
The most important factor in decreasing the intracellular concentration of calcium ion after contraction is
Veseljchak [2.6K]

Answer:

Active transport of calcium into the sarcoplasmic reticulum.

Explanation:

  • The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+)
  • In response to an action potential traveling along the t tubule, voltage-sensitive proteins change shape, opening calcium channels in the adjacent terminal cisterns of the sarcoplasmic reticulum.
8 0
3 years ago
Identify the substances that can readily pass through the inner mitochondrial membrane.
KIM [24]

Answer:

A,C E

Explanation:

The inner membrane of the mitochondria separate the matrix of the mitochondria from the cytosol(inner membrane space.). It is invaginated  folded inwards  to form the critae. This is an adaptive feature to increase the surface area for biochemical reaction in the mitochondria.

The invagination gives two compartments the inner mitochondria also creates the outer intermembrane space and the inner matrix

These are the substances that can pass freely the inner membrane of the mitochondria.Pyruvate and H+ can not pass through.Specifically,it is not preamble to H+ because, hydrogen ions are needed to generate the electrochemical gradients needed for the chemical energy  for phosphorylation of ADP by  P to form ATPs by the enzyme ATPase synthase.If the inner membrane is permeable to H+ the electochemical gradient will not be produced, and therefore ATPs productions stops.

O2 needs to pass through the inner membrane because it it the final electron acceptor. Therefore if not allowed to pass through oxidative phosphorylation  and ETC will nor occur.

CO2 must pass through because its accumulation will increase the acidity of the inner  mitochondria

5 0
3 years ago
A.arteries from aorta
Illusion [34]

1. C
2. A
3.D
4.B

We know that arteries from the aorta and arteries from coronary arteries supply oxygenated blood to various parts of the body. What separates these two is the coronary arteries’ ability to deliver oxygenated blood to the heart.
We know that the inferior vena cava delivers deoxygenated blood to the lower (hence inferior) part of the body and that the superior vena cava delivers deoxygenated blood to the upper (superior) part of the body; they follow the same deoxygenated rule and strictly deliver nutrients to certain parts of the body.

I hope I helped! :)
5 0
3 years ago
If the calvin cycle slows down, what will happen to the rate of o2 production in ps ii, and why?
Schach [20]
If the Calvin cycle slows down, THE RATE OF OXYGEN PRODUCTION IN PS II WILL BE REDUCED. 
This is because, the light reaction depends on the dark reaction to occur. If the Calvin cycle slows down, the light cycle will have less ADP and NADP+ to work with and this will slow down the production rate of the photosynthetic reaction.
3 0
3 years ago
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