Receptors are typically specialized to react to specific stimulation by initiating a chemical or biochemical (in the case of biochemistry) change. In the field of pharmacology or biochemistry, receptors are usually a protein molecules and the change it undergoes are usually specific to the type of stimuli or signal it is responding to.
Answer:
Ducks have flat broad beaks with tooth-like edges. They use their beak to take in muddy water which has insects, worms, etc. The mud and the water flow out of the holes on the sides. The worms and insects inside the mouth for the duck to eat.
Answer:
One of the characteristic feature of the phospholipid bi- layer is that like dissolve likes.Therefore,polar molecules and compounds pass though the hydrophllic heads,while non-polar lipid soluble substances pass through the hydrophobic tail,but can not diffuse across the head.
The plasma membrane is amphipathic.It is made up of the hydrophilic heads and hydrophobic tails
Cortisol is made of lipid.Therefore,it will diffuse easily across the bi layer of the plasma membrane though the tail,while LH and Epinephrine,will not diffuse across this hydrophobic barriers,since they are made up of polar molecules.
Explanation:
Similarities and differences are explained below
Explanation:
Differences:
somatic nervous system:
- It is part of the peripheral nervous system associated with the voluntary control of body movements through the skeletal muscles and mediation of involuntary reflex arcs.
- It has sensory and motor pathways.
- It controls muscles and movement.
- System responses are based on skeletal muscle contraction.
Autonomic nervous system:
- The autonomic nervous system is subdivided into the sympathetic nervous system and parasympathetic nervous system
- It possesses only motor pathways.
- It controls glands and internal organs.
- This system works automatically, without a person's conscious effort.
Similarities between the somatic nervous system and the autonomic nervous system:
Both have motor pathways
Both the system use nerve impulse
Both the system Weaken Myocytes
Both the system use glucose as an energy source for the muscles that they control
Both the system are controlled by the CNS
Both possess neurons
