Answer:
The correct answer is:
Transport occurs with the help of membrane proteins
Explanation:
Facilitated diffusion is the passive (no energy required) movement of molecules across a cell membrane, with the aid of a membrane protein. energy in form of ATP or GTP is not required since molecules are moving down their concentration gradient.
The need for facilitated diffusion occurs when substances cannot successfully cross the phospholipid bilayer of the cells membrane on their own either due to their polarity or large size. The proteins in facilitated diffusion are tthose that act as carriers and those the form the channels across the membrane, through which the diffusion occurs. Examples of where facilitated diffusion is seen is in the transport of glucose (relatively large molecule) across the cell membranes, with the help of the glucose transporter and the transportation of water molecules across the cell membrane through aquaporins.
Ummmmmmmmmm is this what subject??????? Because I hv no idea unless u tell me a subject
Answer:
D- Used to power turbines and generators
Explanation:
The nuclear fission takes place inside the core comprises fuel assemblies. Hence the heat produced is used to power turbines and generators.
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Answer:
the pressure will decrease by 1/2
Explanation:
PV=nRT
P=(nRT)/(V)
nRT are all constant so they will equal 1
V is 2
P=1/2
Hydrogen's light spectrum is limited to its quanta, so electrons *and photons*, can only travel between the electron orbitals. The light emmited from the sun is almost all the spectrum of light from UV to gamma rays, including the visible spectrum. Thats why there are more lines.