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algol [13]
3 years ago
14

Why are enzymes important for a healthy body?

Biology
1 answer:
Aleksandr-060686 [28]3 years ago
6 0

Answer:

Enzymes are involved in the formation and composition of every cell in the body. Thus they also control the working of every organ and even the brain - the control center. They are involved in the breakdown, absorption, distribution and circulation of various nutrients entering the body.

Explanation:

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If you treated embryos with a Notch inhibitor how would this affect the specification of venous and arterial endothelial cells?
Alisiya [41]

Answer:

d. all endothelial cells would be venous

Explanation:

The Notch signaling pathway is a cell signaling system which consist basically of 4 NOTCH genes ( NOTCH1, NOTCH2, NOTCH3, and NOTCH4) each of them having the information to build a particular cell membrane receptor protein.

It has been demonstrated in zebrafish embryos that Notch signaling are highly determinant factors during vascular development, and a key function of these genes was specifically to regulate the differentiation of arterial fate in endothelial cells.

Notch signaling-deficient embryos showed a loss of expression of arterial markers such as ephrinB2 from arterial vessels with an accompanying expansion of venous markers into normally arterial domains. In contrast, embryos in which Notch signaling had been ectopically activated, meaning an activation out of "proper" place (where not expected, e.g. venous endothelial), exhibited the contrary phenotype, this is a suppression of vein-specific markers with ectopic expression of arterial markers in venous vessels.

To summarize, when Notch is supressed (in this case inhibited with a specific Notch inhibitor) arterial fate of endothelium is not followed, and venous fate is stablished. Thus, endothelial cells (those expected to form venous tissues but also arterial ones) would specified as venous.  

4 0
3 years ago
All of the following affect the temperature at which magma forms except what?
krok68 [10]
Viscosity is the only one that doesn’t affect the temperature at which magma forms
5 0
2 years ago
Which type of rock is loosely held together? 1. Graphite 2.Igneous 3.Metamorphic 4.Sedimentary
masya89 [10]

Answer:

Serpentine minerals are made of tiny sheets of silica tetrahedrons that are loosely held together.

3 0
2 years ago
Which conclusion is best supported by Daniels observations and discoveries
Pani-rosa [81]
Since there are no choices, it will be difficult to answer your question.
Let's say these are the choices:

A. The liquid is a pure substance because it is colorless.
B. The liquid is a mixture because its temperature rises.
C. The liquid is a pure substance because it remains liquid when cold.
D. The liquid is a mixture because it has a gas dissolved in a liquid. 

your answer is D. The liquid is a mixture because it has a gas dissolved in a liquid. 
3 0
2 years ago
Read 2 more answers
What advantage does the switch to sexual reproduction give the aphids?
romanna [79]
)Sexual reproduction maintains a constant level of variation in the population and requires less energy.
6 0
3 years ago
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