Answer:
The active site of an enzyme is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
Explanation:
This is because enzymes catalyses reaction by first lowering it activation energy and then bind to the reactants and convert the substrate to products. This take place in the active site. This active site is that area or region where the activation energy is lowered and the substrate molecules is bind to produce products.
A asexual reproduction in plants could be potatoes because of buddding
Answer:
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Explanation:
Capillary action pulls water into the root of a tree while the forces of cohesion and adhesion continually move the water up the tall tree.
Water is a polar molecule. Strong hydrogen bonds hold the water molecules together. This is a kind of dipole - dipole interaction and it accounts for the cohesive forces in water.
The forces of adhesion bind water to other surfaces. In the case of plants, the adhesive forces facilitates the interaction of water with the xylem cells.
Water enters into the roots of plants by capillary action. Capillary action alone is insufficient to move the water up the tree.
Hence, the forces of adhesion and cohesion, acting together can help water molecules to move up the top of a tall tree.
During meiosis crossing over occurs at the pachytene stage, when homologous chromosomes are completely paired. At diplotene, when homologs separate, the sites of crossing over become visible as chiasmata, which hold the two homologs of a bivalent tighter until segregation at anaphase.
Answer:
The respiratory system brings oxygen unto the lungs, while the circulatory system delivers oxygen throughout the body.
Explanation:
