When a protein is synthesized on fixed ribosomes, it is threaded into the lumen of endoplasmic reticulum (ER).
Every eukaryotic cell has an endoplasmic reticulum (ER). The ER is arranged systematically into a web-like maze of radiating tubules and flattened sacs stretching all over the cytosol.
The tubules and sacs are all believed to interlink, so that the ER membrane forms an extended sheet bordering a single internal space. This highly complicated space is known as the ER lumen.
The ER traps selected proteins from the cytosol during their synthesis.
The two kinds of proteins include:-
- transmembrane proteins, which are only partially moved across the ER membrane and are submerged in it, and
- water-soluble proteins, which are completely transported across the ER membrane and are discharged into the ER lumen.
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Answer:
the water cycle how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation.
the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
The correct answer is A I believe
Answer:
Rock formation is an isolated, scenic, or spectacular surfure rock outcrop. Rock formation usually is the result of weathering and erosion sculpting of an existing rock. The term rock formation can also refer as specific sedimentary strata or other rock unit in stratigraphic and pathologic studies.
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Answer:
ionic, hydrophillic,polar
Explanation:
non polar compounds dissolve in non polar solvents like alcohol and hydrophobic substances generally repel water .
