O2 and Co2,
but we breathe out the Co2 again + the O2 which is converted in more Co2
Oxygen
white blood cells
Body cells need oxygen and glucose for respiration. Oxygen is carried by red blood cells in the bloodstream, while glucose is carried as blood sugar in the bloodstream. Both oxygen and glucose enter cells through their respective transporters: oxygen enters through respiratory membranes, and glucose enters through glucose transporters in the cell membrane.
Cholesterol enters animal cells when the animal consumes and processes something that contains cholesterol. The cholesterol then enters through the cells permeable surface.
Goes under the seaCO2 is diffused from atmosphere to the plants. CO2 enters through stomata. Then it enters into cells
Glucose is a substance that enters cells by attaching to passive-transport protein carriers known as glucose transporters. These transporters facilitate the movement of glucose across the cell membrane down its concentration gradient.
Oxygen enters the body through inhalation into the lungs where it diffuses through the alveoli walls into the blood vessels. It binds to hemoglobin in red blood cells and is then transported to tissues and organs in the body where it is needed for cellular respiration.
the follicular epithelial cells of the thyroid.
Haemoglobin is the substance in Red Blood cells needed to carry oxygen.
Carries information throughout the body and to other cells.
Antibodies are produced by specialized white blood cells called B cells. When a foreign substance, like a bacteria or virus, enters the body, B cells are activated to produce antibodies that specifically target and neutralize the invader.
Water enters the leaf through the roots and moves up through the stem to the leaves via the xylem vessels. Once in the leaf, water moves through the mesophyll cells and eventually evaporates from the stomata as water vapor during transpiration.