Need help with these 5 questions! Please answer all to the best you can. Which o

Question

Need help with these 5 questions! Please answer all to the best you can.

Which of the following statements about the autonomic nervous system is false? Parasympathetic neurons release norepinephrine on the target organ, and sympathetic neurons release acetylcholine. The post ganglionic neuron is near the target organ in the parasympathetic system, and near the spinal cord in the sympathetic system. The parasympathetic nervous system resets target organs after the sympathetic nervous system is activated. The parasympathetic nervous system is responsible for resting the body. while the sympathetic nervous system is responsible for preparing for an emergency. Which of the following events does not occur at a chemical synapse? Release of neurotransmitter from the pre-synaptic cell into the synaptic cleft. Voltage-gated ion channels open in the pre-synaptic cell. Increase in intracellular Ca+ levels in the post-synaptic cell. Diffusion of neurotransmitters to post-synaptic cell. Which of the following statements about light is false? Light that is visibly blue has longer wavelengths than ultraviolet light. Light with higher frequencies have shorter wavelengths Light at the violet end of the visible spectrum has lower frequency than light at the red end of the visible spectrum Microwaves have shorter wavelengths than radiowaves. Deep sea fish are adapted to low light environments, given what you know about eye anatomy and function which of the following statements is most likely true? Deep sea fish are mostly blind. Deep sea fish have high density of S. M and L cones Deep sea fish eyes have more cones than rods Deep sea fish eyes have more rods than cones Depolarization of an axon is the result of what event occuring? K+ channels open and K+ leaves the cell. Na+ channel close and Na+ leaks out of the cell. K+ channels open and K+ enters the cell. Na+ channels open and Na+ enters the cell.

Explanation / Answer

Ans-1)=. Option -1 is incorrect

as parasympathetic nervous system release acetylcholine whereas sympathetic nervous system release catecholamine - epinephrine & norepinephrine

I

Ans-2)=. Option-2 is incorrect

Voltage gated ion channels are controlled by transmembrane protein they depend on electrical synapse to change ion channels

Ans-3)= option-3 is incorrect

As the wavelength increase frequency decrease ... wavelength increases from violet to red ...so light at the red end of visible spectrum has lower frequency than the light at blue end..

Ans-4)= option -1 is likely true as most of the deep sea fishes are blind they use their sensory receptors to capture prey whereas those who are not blind have large and sensitive eyes they use bioluminous property to capture prey

Ans-5)= option -4 is correct

During depolarisation positive charge( cation) inside the nerve cell increase so during the process nerve membrane allow the influx of Na+ ion and inhibit the efflux of k+ ion so positive charge increase inside the nerve membrane

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