Answer:
The correct option is;
Action potentials travel the length of the axon
Explanation:
A dendrite are nerve cell projections that are used for receiving signals from other nerve cells
A neurotransmitter is the chemical, produced by the nerve cell to contain the message the nerve cell intends to transmits across a neural junction, to the cell for which the message is meant such as a muscle cell, gland cell, or other nerve cells
Therefore, the received message from the dendrite by the present neuron are transported using action action potential which is the means by which electrical signals are transported by a neuron through the length of the axon which is the projection of the nerve cell, known as the nerve fiber that conducts action potential which are electrical impulses to other destination by traveling the length of the of the axon to the location of the destination cell of the action potential
Answer:
4
10
Explanation:
The reaction equation is given as;
Ca(OH)₂ → Ca²⁺ + 2OH⁻
Concentration of Ca(OH)₂ = 5 x 10⁻⁵M
Unknown:
pOH of the solution = ?
pH of the solution = ?
Solution:
Solve for the pOH of this solution using the expression below obtained from the ionic product of water;
pOH = ⁻log₁₀[OH⁻]
Ca(OH)₂ → Ca²⁺ + 2OH⁻
1moldm⁻³ 1moldm⁻³ 2 x 1moldm⁻³
5 x 10⁻⁵moldm⁻³ 5 x 10⁻⁵moldm⁻³ 2( 5 x 10⁻⁵moldm⁻³ )
1 x 10⁻⁴moldm⁻³
Therefore;
pOH = -log₁₀ 1 x 10⁻⁴ = 4
Since
pOH + pH = 14
pH = 14 - 4 = 10
Answer:
1. A solid has a definite volume and a shape.
2. Liquids take on the shape of their container and will fill the lowest portion of the container, taking on the shape but not the volume.
3. It may take extreme temperature, pressure or energy but all the matter can be changed.
4. Through sublimation, a substance changes from a solid to a gas without even passing through the liquid phase.
" There will be a net movement of oxygen from outside the cell to inside the cell " Statement is True.
Explanation:
The partial pressure for oxygen in alveoli is greater under normal circumstances, and oxygen moves neatly into the blood. In addition, the partial carbon dioxide pressure throughout the blood usually is higher, such that carbon dioxide migrate clearly into the alveoli.
The few common molecules which can traverse the cell membrane by absorption (or diffusion of a sort recognized as osmosis) are water, carbon dioxide and oxygen. Metabolism is typically oxygen-needed, which is lowest in the cell within the animal and plant, so that net oxygen flows to the cell.
