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State one reason why some molecules can pass through a certain membranebut other molecules can not?
Wiki User
∙ 10y ago
Molecules pass through pores in membranes. If a molecule is larger than the pores or it sticks to other molecules of its kind to form a thick goo, it won't go through.
Wiki User
∙ 10y ago
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Why is it important for the cell membrane to be fluid?
The reason why the cell membrane requires a fluid consistency is to allow certain molecules to pass through. Fluidity is also important for phagocytosis to take place.
The reason that water soluble molecules cannot enter certain regions of the plasma membrane is due to the presence of?
gated channels which close when ions are present
What type of molecules can damage the ozone layer?
The molecules that damage the ozone layer are chlorine molecules. These molecules are the main destructive reason behind depletion.
Why is it that you can smell perfume several meters away give reason?
Perfume evaporates, the perfume molecules diffuse through the air and reach your nose, enabling you to smell them.
What are some molecules that absorb short wavelength light in the atmosphere?
actually the water molecules have the tendency to absorb the EMW waves of a certain frequency normally called to be infrared rays of a wave length below micro waves this the reason for occurrence of green house effect in earth greater this effect leads to global warming
Polar molecules behave as though they?
Polar molecules have charges that non-polar molecules do not have. It is the reason why non-polar molecules can move through the lipid bilayer quicker than the polar molecules.
State one possible reason a certain substance can not pass across a cell membrane?
The cell membrane is selectively permeable. Some substances like molecules are too big to pass through the membrane. The membrane allows passive transport of moleculesÊ by filtration, diffusion, or osmosis.
Why is it important for the cell membrane to be fluid?
The reason why the cell membrane requires a fluid consistency is to allow certain molecules to pass through. Fluidity is also important for phagocytosis to take place.
The reason that water soluble molecules cannot enter certain regions of the plasma membrane is due to the presence of?
gated channels which close when ions are present
State one reason why chromography is very effective for this type of analysis?
What type of analysis? Chromatography is the separation of molecules based on how they react in a passing mobile phase through a stationary phase and separating the molecules.
What type of molecules damage the ozone layer?
The molecules that damage the ozone layer are chlorine molecules. These molecules are the main destructive reason behind depletion.
What type of molecules can damage the ozone layer?
The molecules that damage the ozone layer are chlorine molecules. These molecules are the main destructive reason behind depletion.
What is the reason behind ozone hole?
The main reason behind ozone hole is the reaction of the chlorine molecules from CFC's. These molecules initiate a chain reaction which then destroy the ozone molecules to form the ozone hole.
What are some issues with ozone depletion?
Ozone depletion is the process of thinning of ozone molecules below a certain concentration. The main reason behind ozone depletion is the excessive use of CFCs.
Why is it that you can smell perfume several meters away give reason?
Perfume evaporates, the perfume molecules diffuse through the air and reach your nose, enabling you to smell them.
How does sharks excrete waste?
Sharks excrete their urea through their skin. Hence the reason why they have a certain 'ammonia-like' kind of smell.
Does sound travel by vibration?
The short answer is yes. Sound is the vibration of molecules and is transmitted by the molecules bumping into each other unlike light which Is the movement of a photon through space. For this reason sound does not travel in a vacuum. The vibrating air molecules vibrate against a sensitive structure in the ear which the brain transforms into sounds.
