Answer: Mitochondria and Chloroplast have double membrane(inner and outer) but golgi apparatus and endoplasmic recticulum have single membrane.
Explanation:
Mitochondria is referred to the power house of the cell where energy is produced.
Chloroplast is the organelle found in green plants use for photosynthesis to produce energy. Both chloroplast and mitochondria are found in multicellular organisms and their function is to produce energy. The both have double membrane bound organelles.
Golgi apparatus and endoplasmic reticulum are single membrane bound organelles and they are found in eukaryotic cells. The endoplasmic recticulum transport synthesized protein to vesicles of Golgi apparatus.
Answer:
In this case, it is likely that the polypeptide chain assumed an alpha helix configuration because the lipid bilayer did not have beta-barrel proteins.
Explanation:
A polypeptide chain is naturally polar, however, a lipid bilayer is naturally non-polar. This makes it difficult and even prevents the polypeptide chain from crossing a lipid bilayer, since the composition of these two elements does not allow them to mix. In that case, the polypeptide chain has two options to take to successfully cross the lipid bilayer.
The first option that the polypeptide chain has is to allow the creation of twisted beta sheets in the shape of a closed barrel in its structure. This only works if the lipid bilayer has beta barrel proteins in its composition to act as a transport channel for the polypeptide chain. However, few lipid layers have this protein.
Most likely, the polypeptide chain assumes an alpha helix conformation to cross lipid bilayers that do not have beta-barrel proteins. By assuming the beta conformation, the polypeptide chain reinforces the hydrogen bonds present in its composition, allowing it to cross the lipid bilayer without having its conformation and structure disassembled.
Answer:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.
Answer:
year, age, epoch, period, era, eon
Explanation:
Because then you get a infection
