B) increased : short period
C) decreased : long period
D) increased : long period
E) unaffected : long period
Answer:
Increased:long period
Explanation:
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Slow receptors, which respond to stimuli over longer durations, are more likely to have a cumulative or 'summation' effect. The likelihood of this summation increases with the length of time required for the responses to decay. This mechanism plays a critical role in cognitive functions such as learning and memory.
In the context of neuronal signaling, when we speak about slow receptors, we are referring to those that respond to stimuli at a slower pace, often due to a longer duration of transmitter binding, and therefore have a higher likelihood of summation compared to the fast receptors.
The concept of summation refers to the cumulative effect of a series of neural responses that take time to diminish. In this case, the likelihood of summation is increased by the long period of time required for those responses to decay. Thus, the correct answer to your question would be option D) increased : long period. This is because the longer the responses take to decay, the more likely they are to accumulate or summate.
It is also important to note that this process significantly contributes to the cognitive functions of the brain, such as memory and learning by facilitating the creation of long term potentiation within neural networks.
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Question:
Which of the following statements correctly describe(s) the driving forces for diffusion of Na+ and K+ ions through their respective channels? Select all that apply.
A)The diffusion of Na+ ions into the cell is facilitated by the Na+ concentration gradient across the plasma membrane.
B)The diffusion of Na+ ions into the cell is impeded by the electrical gradient across the plasma membrane.
C)The diffusion of K+ ions out of the cell is impeded by the K+ concentration gradient across the plasma membrane.
D)The diffusion of K+ ions out of the cell is impeded by the electrical gradient across the plasma membrane. The electrochemical gradient is larger for Na+ than for K+.
Answer:
"The concentration gradient and the electro-chemical gradient" describes the driving forces for diffusion of Na+ and K+ ions through their respective channels
Explanation:
The Na ions diffusion inside the cell is facilitated by the concentration gradient of the Na ions which is present across the plasma membrane. Hence, the diffusion of the K ions which is present outside the cell and will be impeded due to the electrical gradient which is present near the plasma membrane. Thus, the electro-chemical gradient is greater as compared to the Na ion than that of the K ion.
A. motion of particles.
B. density of particles.
C. randomness of particles.
D. kinetic energy of particles.
Answer: is C
Explanation:
The most appropriate label for the y-axis in a graph comparing states of substances would be related to changes that occur in different states of matter, such as kinetic energy or motion. The label 'density of particles' would not be appropriate, as it doesn't significantly vary between states.
The appropriate label for the y-axis on a graph that compares three states of a substance might typically be something directly related to those states, such as kinetic energy of particles, motion of particles, or randomness of particles. These labels reflect changes that occur in different states of matter. When substances change state, there are changes in the arrangement and motion of the particles.
By contrast, density of particles would not be an appropriate label. Density, in this sense, is not a property that varies significantly between different states of a substance. The density of a substance in its solid, liquid, or gaseous state does not refer to the density of the individual particles themselves, but to the density of the substance as a whole (mass/volume).
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Answer:
B.
Explanation:
Answer:
A:
Explanation:
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