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What are the first vestiges of eye in the embryo called?
optics disc No,,thats not correct...the correct answer is optic vesicles. Optic discs is your blind spot. The fourth week of development, the beginnings of the eyes are seen in the optic vesicles.
Where does diffusion occur in fish?
Diffusion occurs in fish primarily in their gills, where oxygen from water diffuses into the blood and carbon dioxide diffuses out of the blood into the water. This process allows fish to obtain the oxygen they need for respiration and to rid their bodies of waste carbon dioxide.
How do diffusion osmosis facilitated diffusion and active transport diffusion differ?
Diffusion is the movement of molecules from an area of greater concentration to an area of lesser concentration. e.g. Exchange of gases in the lungs or body tissues. Osmosis is the diffusion of water through a semi-permeable membrane from an area of low solute to an area of high solute concentration. Faciliated diffusion is the passive transport of molecules down a concentration gradient. It is simply diffusion that involves a protein to make diffusion happen more easily across a cell membrane. Active transport is the moving of substances across the cell membrane using the cell's energy. Molecules are moved against a concentration gradient, i.e they move from an area of lesser concentration to an area of greater concentration. Tlhis is done by a carrier molecules which gets its energy from ATP.
Is diffusion through ion channels a form of active transport?
Facilitated diffusion, or diffusion through ion channels, is not a form of active transport. It is a spontaneous passive transport.
How is diffusion important in our living systems?
diffusion is important to living system in a way that in can help in reproduction of living system
What is is called when vesicles are used to move substances out of the cell?
The process that requires transport vesicles to transfer material out of a cell is called exocytosis.
Does diffusion require help from vesicles?
No, diffusion does not require help from vesicles. Diffusion is the movement of particles from an area of high concentration to an area of low concentration, driven by concentration gradients. Vesicles, on the other hand, are membrane-bound structures that transport materials within cells through processes like endocytosis and exocytosis.
Is endocytosis an example of diffusion?
Endocytosis is NOT an example of diffusion. It is an example of active transport whereas diffusion is a type of passive transport. The difference lies in the fact that diffusion does not require energy to take place, and endocytosis does.
Why is endocytosis use for?
it is used for vesicles
Does exocytosis use vesicles?
Yes.
What is a process by which cells release their contents?
Exocytosis is the process by which cells release their contents in form of vesicles. This may also happen due to diffusion.
What is the use of carrier proteins for diffusion?
facilitated diffusion.
Does facilitated diffusion require the use of energy?
Facilitated diffusion does not require the use of energy.
In which process does the cell use a vesicles to move molecule out?
Exocytosis
How do cnidarians breathe?
They use diffusion to get air through there body walls.
What best discribes diffusion?
Diffusion is the process of spreading something more widely. It can be the diffusion of Homo Sapiens from the plains of Africa, the diffusion of a drop of ink in a bucket of water, diffusion of the use of smart phones.
What the function of secretory vesicles?
Vesicles perform many functions through complex mechanisms that can involve many aspects of cell regulation. Secretory vesicles in particular are specialized vesicles formed in the trans-golgi apparatus for releasing a product (such as molecule or protein) outside the cell. Secretory vesicles are used for exocytosis. Mast cells use secretory vesicles to release histamine which is a molecule involved immune response. Neurotransmitters can also be transmitted in secretory vesicles from nerve cells.
