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Dominik [7]
3 years ago
14

Explain why polar and ionic R groups are hydrophilic.

Biology
1 answer:
Elenna [48]3 years ago
6 0

Explanation:

They are hydrophobic. About 5 amino acids have polar side chains, R-groups which do not ionize or become positively or negatively charged. These R-groups are neither strongly hydrophilic nor hydrophobic. Atoms in long molecules, such as polypeptides, are not rigidly fixed in space or position

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<span>I believe it is C. Waste is removed through a designated opening.</span>
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A karyotype for Pat Williams shows a mutated X chromosome, but a normal Y chromosome. What is Pat?
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Couldn’t you just do a punnet square for this
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Research concerning automatic prejudices reveals that __________. a. automatic processing is associated with the frontal cortex.
Valentin [98]

Answer:

D. automatic processing involves primitive areas of the brain associated with fear

Explanation:

The amygdala in the limbic system represents a region of the brain that has recently received attention as a possible region associated to fear reactions. Moreover, it has been proposed that the amygdala was one of the first limbic regions to develop in course of evolution.

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3 years ago
missive segment is the axon hillock. The main activity that occurs at the transmissive segment is the release of neurotransmitte
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Explanation:

The main activity that occurs at the transmissive segment is the release of neurotransmitter from synaptic vesicles . Prior to the arrival of the action potential, Ca2+ pumps embedded in the plasma membrane of a synaptic knob establish a calcium concentration gradient by pumping it out to the IF. Consequently, there is more calcium inside of the synaptic knob than outside it.

Further Explanation:

At synaptic junctions:

  • The action potential travels along the membrane until the synapse where it’s electrical depolarization leads to the opening of channels allowing Ca2+ to rush into the terminal due to higher extracellular concentrations
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  • this leads to changes in the proteins leading to the fusion with the membrane of the presynaptic cell, so vesicles are open and neurotransmitter is released. The neurotransmitter diffuses across to chemical receptors on the presynaptic cell where they bind temporarily
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Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

Read more on Brainly.com - brainly.com/question/13844620#readmore

6 0
3 years ago
What are the advantages and disadvantages for classification in biology? ​
PilotLPTM [1.2K]

Answer:

Advantages of classification:

- Allow us to see a species more detail than when we not classified it

- Catergorizing things, we can know them kind better and we can make judgement, opinion for the whole class in general

AND MANY OTHERS ADVANTAGES

Disadvantages of classification:

- Some classification is made by group, person and not everyone contribute, agree to that idea so there may lead to wrong classified

- And this classification stuff is made by HUMAN and it is just what human want species in this world to be classified, not nature classification!

Hope this helped :3

6 0
3 years ago
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