Photosynthesis. Photosynthesis occurs in the chloroplast, which contains the light absorbing pigment chlorophyll that is responsible for making plants green in colour.
A macromolecule is a very large molecule, such as protein, commonly created by polymerization of smaller subunits (monomers). They are typically composed of thousands of atoms or more. The most common macromolecules in biochemistry are biopolymers and large non-polymeric molecules. :D
The answer is; concentration of oxygen and/or total atmospheric pressure is lower at high altitudes
This means that at high altitude, due to the low pressure, every breath has a lower oxygen content than at a lower altitude. This, therefore, necessitates the body to increase the erythrocyte numbers in the blood to maximize the uptake of oxygen from the thinner air.
Answer:
Prokaryotic gene expression:
The transcription of prokaryotes is different from the ekaryotes. Prokaryotes use the promoter sequence located at -10 and -35 position upstream of the DNA. The transcription is coupled with translation in prokaryotes in the cytoplasm. The spilicing of mRNA do not occur in eukaryotes.
Eukaryotic gene expression:
The regulation of transcription in eukaryotes is different from prokaryotes. The eukaryotic mRNA undergoes splicing and 3' polyadenylation and 5' capping occur in prokaryotes. Different kinds of RNA polymerase is required for the transcription of different RNA molecule. The transcription occurs in the nucleus.
Answer:
A high-sodium diet could damage the body over time as it may cause hypertension, heart failure, kidney disease, stroke etc.
Explanation:
Human body needs a small amount of sodium to perform functions like maintaining the proper balance of water and minerals, nerve impulse transmission, and contraction and relaxation of muscles. It requires about 500 mg of sodium daily to perform these important functions.
But a high-sodium diet can lead to hypertension (high blood pressure), heart disease, kidney disease and stroke. It can also cause depletion of calcium from the bone resulting in osteoporosis. Excess sodium in the blood causes the body to hold onto more water to dilute the sodium, which increases the amount of fluid surrounding the cells and the volume of blood in the bloodstream. The increase in blood volume causes more pressure on the blood vessels and the stiffening of blood vessels, which leads to high blood pressure (hypertension) and more work for the heart. This causes more burden to the heart resulting in heart attack and stroke.
Commercially processed foods like bread, pasta, soups, chips etc contains high sodium than naturally processed food like fruits, vegetables, whole grains, nuts, dairy products etc.
The ideal intake amount of sodium for a normal, healthy individual is 2,300 mg per day. For persons having high blood pressure or cardiovascular disease, the recommended amount is 1500 mg or less per day.