Diffusion is a process in which material travels from regions of high concentration to low concentration until equilibrium is reached. In this case, blood with a low concentration of oxygen molecules circulates through the gills.
Q. What causes diffusion of oxygen into a plant cell?
In plant cells the contents are surrounded by a cell membrane and a cell wall. Substances such as oxygen and carbon dioxide pass through these by diffusion. Plants use up carbon dioxide during photosynthesis. This causes oxygen to diffuse out of the leaf into the air.
Q. What is an example of diffusion in plants?
In order to carry out photosynthesis a plant requires carbon dioxide. On the underside of leaves there are small holes known as stomata, carbon dioxide diffuse into the leaves via these. Leaves produce oxygen and water vapour and these in turn diffuse out via the stomata.
Q. How do the waste products leave the cell?
Scientists propose that the cell may pile all the unwanted proteins together in a glob called an aggregate to keep them from gumming up normal cellular machinery. If the garbage can’t be digested by lysosomes, the cell can sometimes spit it out in a process called exocytosis.
Q. What are two wastes that the body must get rid of?
Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body.
Q. What is the structure and function of the mitochondrion?
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
Q. What is cytoplasm very short answer?
The cytoplasm (also known as cytosol) is the protoplasm of a cell outside the cell nucleus. It is the jelly-like material plus the organelles outside the nucleus, and inside the cell membrane. Many important functions of a cell take place in organelles, which are like bits of machinery for doing many jobs.
Q. What are the main components of cytoplasm?
The main components of the cytoplasm are cytosol (a gel-like substance), the organelles (the cell’s internal sub-structures), and various cytoplasmic inclusions. The cytoplasm is about 80% water and usually colorless.
