Answer:
The correct answer is A malate is stored in the large vacuoles.
Explanation:
During CAM malate is synthesized from oxaloacetate by malate dehydrogenase enzyme.The so formed malate is stored inside large vacuoles during night.
In the day time the guards cells of CAM plants get closed and malate is then discharged.The discharged malate is then transported into the chloroplast where the malate is converted to pyruvate and CO2.
The CO2 then enters into the calvin cycle .
Answer: cancer
Explanation: I am a scientist
Answer:
<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell.
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Explanation:
Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.
While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.
The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.
