Answer:
Nucleic acids
Explanation:
Nucleic acids are one of the four biomolecules found in living systems ( the other three being carbohydrate, protein, lipids). Nucleic acids, like every other polymer molecule, are made up of monomeric units called NUCLEOTIDES.
The two nucleic acids are Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) responsible for the storage and transmission of genetic information throughout the cell.
Answer:
An antigen presenting cell present antigens to helper t lymphocyte is called Macrophage.
Explanation:
Macrophage belong to the family of antigen presenting cell. Macrophage along with the help of low molecular weight protein cytokines migrates to the site of inflammation. After reaching that site Macrophage engulf the antigen and destroy the later by the process called cell eating or phagocytosis.
Then the antigenic fragements are presented to Helper T cell with the help of a protein molecule known as Major Histacompatability complex or MHC.
Number 3 the answer is c HOP IT HELP
Answer:
a. The electrons provide energy for the H+ pump to transport more H+ ions into the thylakoid space.
d. The photolysis of water releases H+ ions into the thylakoid space.
Explanation:
This question describes the first stage of photosynthesis, which is LIGHT-DEPENDENT REACTION. The light dependent reactions involve creating ATP (energy carrier) and NADPH (electron carrier) needed for the Calvin cycle (light independent stage) to occur.
The ATP is formed by pumping hydrogen ions (H+) into the thylakoid space/lumen, hence, creating a electrochemical gradient needed for ATP synthase to synthesize ATP. The buildup of H+ ions is caused by:
- The electrons that arise when light photons hit a chlorophyll molecule is used to provide energy for the H+ pump to transport more H+ ions into the thylakoid space.
- The photolysis of water results in the production of electrons (e-) and hydrogen ions (H+). These hydrogen ions are released into the thylakoid space.