For women, the possibility of pregnancy begins in the ovaries. A woman is born with 1 to 2 million eggs, more than a lifetime's supply. The eggs begin dying off almost immediately and she never produces more. The average egg lives only about 24 hours, so it has to be fertilized soon for pregnancy to happen. If it doesn't get fertilized on time, it either dissolves or is absorbed by the body. When an egg is fertilized, its own genetic material and the genetic material of the sperm that got to the egg first combine to create a new cell that starts dividing rapidly. A woman isn't actually pregnant until that new bundle of cells (called the embryo) travels down the fallopian tube and attaches to the wall of the woman's uterus. The average pregnancy lasts for 38 weeks from the date you conceive (called conception). However, doctors usually date your pregnancy from the first day of the woman's last menstrual period. Using this method, a pregnancy is said to last 40 weeks, or 280 days.
Answer:
Adenosine triphosphate or ATP is the energy-providing molecule of the organisms which produce energy during the metabolic process. Therefore this is also considered as the energy currency of the cell.
As a biomolecule, it is made up of three components: a ribose sugar, adenine nitrogenous base and three phosphate groups. Its adenine base is attached to the 9th nitrogen atom of the 1′ carbon of the sugar. and three phosphate group are attached to the 5' carbon atom of the sugar.
High energy is stored in the three phosphate bonds which when broken down to adenosine diphosphate and monophosphate releases energy. New ATP is generated through the process of phosphorylation in mitochondria and chloroplasts in plants. The ATP production reaction is catalyzed by ATP synthase
