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hiya I think the answer is oxygen and carbon dioxide
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Is blood a substances or a mixture?
Blood is a mixture of substances minly containing RBC (red blood cells or erythrocytes),WBC(white blood cells)and thrombocytes. The suffix -CYTES means cells. all of these substances in addition to other substances are present in the serum which is the fluid part of the blood. when blood is collected in a test tube using a sterile needle and it is allowed to stay the RBC's clot along with the thrombocytes and they settle down leaving the serum on top.
What do you call a membrane that only allows certain substances to pass through it?
semipermeable membrane
What does it mean if someone is A positive?
It means that their blood type is A+ (A Positive). Human blood is divided into several different groups based on unique antigen substances, found on red blood cells.
What allows certain materials to pass in and out of the cell?
A cell wall on both the plant & animal cells. a cell membrane (yes membrane is spelled M-E-M-B-R-A-N-E.) in just a plant cell. the following contribution is by Draycos a SEMIPERMEABLE membrane will allow some substances to pass and prevent other substances from passing. another name for this kind of membrane is SELECTIVELY PERMEABLE
What does Osmosis includes?
All the actions of semiperiable membranes : surfaces that allow some materials to pass through but not others. USUALLY the term osmosis refers to membranes that pass water but not other substances.
When soluble substances pass through the small intestine and into the blood?
enzymes
What 2 substances pass from the blood and into the alveoli?
oxygen and carbon dioxide
2 substances that don't pass out of blood?
Glucose and mineral ions.
How would harmful substances in the mothers blood reach the embryo in her uterus?
The substances can pass through the placental wall.
What is so special about these blood vessels that's makes it easy for substances to pass in and out?
when blood is in vessel, the blood may be black.
State two substances that pass into the blood?
Two substances that pass into the blood include oxygen and carbon dioxide. The blood carries fresh oxygen to the cells and tissues and removes waste materials.
Which blood vessels can allow substances like dissolved food to pass into and out of the bodys cell?
cappillaries
State 2 substances the pass out of the blood?
excess water and salt. along with metabolites and electrolytes.
What blood vessel exchanges substances with a nephron?
Capillary. The thin walls allow diffusion of materials to pass from the blood flow into the nephron.
Spinal nerves branch off the?
Tiny blood vessels that allow substances to pass between the blood and body tissues are called
Where chemicals pass between cells and blood?
The walls which allow substances to pass backwards and forwards between the blood and the cells are called capillaries. They are microscopic blood vessels have walls which are 'leaky' which allows substances to pass backwards and forwards. Narrow arteries and veins are connected by capillaries.
Are veins tiny blood vessels that allow substances to pass between the blood and body tissues?
No, capillaries are what allows substances to go from the walls of the small intestine into your cells. Veins are what carry the blood (with cells inside) to the heart to be oxygenated.
