Answer:
. B. rough ER, transport vesicles, Golgi apparatus, transport vesicles, cell membrane
Explanation:
This route follows the normal pathways any synthesised protein follows during steps of protein synthesis of cells.
1. Because Insulin is a peptide hormone needed out side the cells, it is synthesized by ribosomes attached to the Rough Endoplasmic Reticulum of the beta cells in the pancreas.The stimulus for secretions are elevated plasma concentration of blood sugar and amino acids. The protein arrives to the R.ER as preproinsulin after translation, and with the addition of disulphide bridges in the R.ER formed prosinsulin.
2.The proinsulin are transported through the transport vesicles which makes use of the cytoskeleton of the cytosol for movements to reach the Cisternae ( golgi apparatus).
3. The Golgi bodies packaged and modified the proinsulin to form active insulin. and transported these by Cisternae migration to trans-golgi reticulum.
From here they are transported to the trans-Golgi network; where they are moved into the secretory vesicles and transport vesicles.
The transport vesicles fused with the plasma membrane , and based on metabolic or vagus stimulation is secreted to the blood stream through Exocytosis.
Insulin is produced in beta cells of the pancreas and travels from the rough endoplasmic reticulum to the Golgi apparatus before being released into the bloodstream. Option B is correct.
The route of insulin from its production to its exit from the cell involves several steps. Insulin is produced by beta cells in the pancreas. It is then transported from the rough endoplasmic reticulum (ER) to the Golgi apparatus via transport vesicles. Within the Golgi apparatus, insulin is further modified and packaged into vesicles that bud from the trans face of the Golgi. These vesicles then fuse with the cell membrane, allowing insulin to be released into the bloodstream.
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B A biodiverse plant provides humanity with many foods, medicines, and various comsumable products.
C We have an ethical obligation to protect the variety of species on the planet from demise cause by human activity.
D All of the above are valid reasons for maintaining the biodiversity of the earth.
Answer:
A major problem in using geothermal power is corrosion.
Answer: All chromosomes replicate once in a cell cycle
Explanation :
DNA replication is the action of DNA polymerases synthesizing a DNA strand that is complementary to the original strand or template strand.
In eukaryotes, it is during the S phase of the cell cycle that the vast majority of DNA synthesis occur and the entire genome uncoil and divide to form two daughter cells or copies while In Bacteria, replication begins at the origin of replication, supercoiled DNA is unwound by DNA gyrase, made single-stranded by helicase, and bound by single-stranded binding protein to maintain its single-stranded state.
In Eukaryotic DNA replication. all chromosomes replicate once in a cell cycle and Replication begins at many origins along each chromosome, this is why genome replication of eukaryotes occurs faster than those of bacteteria even thouge their DNA molecules are larger than the DNA molecules of Bacteria.
Answer:
the transformation of pollen grains from another to stigma is called pollination.