0
What else can I help you with?
What things must happen in order that a substance can be smelled?
For a human to smell a substance, The substance must be volatile, and molecules of it must be airborne and drift near the nose. The substance must come in contact with an olfactory nerve-ending in the nose. The olfactory nerve must react, by excitation, to the molecule, sending an electrical impulse to the brain. The brain must receive and process olfactory (smell) nerve signals.
How many oxygen molecules could one blood cell carry?
One hemoglobin molecule in a red blood cell can bind up to four oxygen molecules. Therefore, one blood cell could potentially carry up to four oxygen molecules at a time.
What 3 things need to happen in order for a chemical reaction to occur?
This isn't answerable without knowing what the chemical reaction is. Some reactions are very easy to initiate - alkali metals and halogens will react with little to no prodding. Others require intermediate reactions.
What is another term for the glucose molecules?
There are several but blood sugar is one or monosaccharide is another.
What would happen to a person blood osmolality when drinking seawater?
When you drink seawater, a high concentration of salt finds its way into your blood vessels. As a result, you have a higher concentration of solutes (salt molecules, in this case) on the outside of your blood cells than in your blood cells-- there is a hypertonic solution on the outside of the blood cells. Your body wants to keep solutions isotonic across the membranes-- that means your body wants the same amount of free water molecules on the inside of the blood cells as the outside-- so water molecules move out of the blood cells in order to keep the balance of free water molecules. The water moving out of the blood cells cause them to "crenate," or shrink, which is of course not very good for your cells.
What must happen to the other molecules for them to get into the blood?
they must be broken down and it should absorb into the blood
What must happen to glucose moleculs before respiration begins?
the glucose molecules must break down into two smaller molecules
What must occur for diffusion to happen?
two molecules must collied before diffusion happens.
What would happen to human blood if put in salt water?
If human blood is put in salt water, the water molecules in the human blood will lead to the lower concentration of water molecules. This process is called diffusion- water molecules going from high concentration to low concentration.
What must happen with the water molecules so that they can dissolve compounds?
The water molecules surround the solute (stuff being dissolved) and separate the particles.
What happen for heat to be transferred by thermal conduction?
Two molecules must collide with each other.
What 2 things must happen for a solute to dissolve in a solvent?
The bonds between ions or molecules of the solvate must be broken. The solvent must be in a sufficient amount and an adequate temperature.
What must happen to some of the molecules in the air for a spark to occur?
Some of the molecules in the air must be ionized, meaning they lose or gain electrons, to create charged particles that can conduct electricity. When these charged particles accumulate enough energy, a spark can occur due to the flow of current through the air.
Must sugar dissolve in blood to enter cells?
No, sugar enters cells through facilitative diffusion, a process that does not require it to dissolve in blood. Cells use specialized transport proteins to move sugar molecules from the blood into the cell.
How do the molecules get into the blood vessels?
The small, soluble molecules get through the wall of the small intestine and into the blood
What must happen to cause water to evaporate?
Water must absorb enough heat energy to break the hydrogen bonds holding the water molecules together. This causes the water molecules to overcome intermolecular forces and enter the gaseous state, thus evaporating.
What food molecules go into the blood?
The small molecules such as digested fat, carbohydrates and proteins.
