Answer:
First, it transports blood with oxygen and nutrients to cells all over the body. Second, it picks up waste products from the cells to be transported out of the body, and it takes the deoxygenated blood back to the lungs so it can regenerate.
Answer:
Ongoing effects include rising sea levels due to thermal expansion and melting of glaciers and ice sheets, and warming of the ocean surface, leading to increased temperature stratification. Other possible effects include large-scale changes in ocean circulation.
Explanation:
The correct answer for the question is B, ATP contains less potential energy than ADP.
Explanation;
ATP contains more energy potential than ADP , since it has three phosphate bonds unlike ADP which has 2 phosphates.
A. is true; During glycolysis ATP is formed, Glycolysis uses 2 ATP molecules and also generates four ATP molecules which gives a net energy of 2 ATP molecules.
C is true, as plant cells generate ATP during cellular respiration. Cellular respiration is the process in which cells generate energy in form of ATP through oxidative phosphorylation in the mitochondria.
D. is true; ATP is used as a mobile energy carrier molecule by all cells. It used by these cells to fuel all cellular activities.
Answer:
One band of light density and one band of heavy density.
Explanation:
According to conservative model of replication, the original strands do not separate from each other during replication. Hence, after replication the old strands are together and the new strands are together.
Here, cells were grown in 14N medium first so 14N was used for DNA replication and all DNA molecules had 14N. When the cells were transferred to 15N medium, only 15N was available for replication process. New DNA molecules would be synthesised using 15N (15N15N) and old DNA molecules have 14N (14N14N). Hence, in density gradient one band will be of light density (14N14N) and one band will be of heavy density (15N15N).
