12 Questions |
By Jacksonmatthews | Last updated: May 6, 2019
| Total Attempts: 47
Questions and Answers
Hormones are the most potent ______ messengers in the body because they act directly on the genes, instructing our cells how to behave and controlling critical body functions.
Dissolved in oil, as it usually is, DDT is definitely toxic, and if swallowed, it is absorbed slowly through the ________ tract, it may also be absorbed through the lungs.
Once, DDT has entered the body it is stored largely in organs rich in non fatty substances (because DDT itself is non fat-soluble) such as the adrenals, testes, or thyroid.
At about ten weeks the testes usually start migration from the kidneys towards the scrotum, which is reached just before birth. When one or both testes fail to descend from a position near the kidneys into the scrotum, it is known as testicular non descent, and in baby boys this is associated with testicular ______ later in life.
Sertoli cells are probably the most important cells in the testes,they are the cells that control the whole process of sperm production.
Oestrogen in the female is secreted by the ovary and regulates development, growth and ________ , and at puberty, oestrogens are responsible for the secondary sex characteristics in women, the enlargement of the breast, deposition of fat on the hips and thighs, and the appearance of pubic hair.
Discovery was made that plants make their own oestrogens, which is called phyto-oestrogens.
Potatoes, even stored in the cold and dark, these would eventually sprout and they are treated with Tecnazene, a toxic fungicide that inhibits _______.
Various fruits are routinely treated with chemical _________ post-harvest to delay spoilage during transport and storing, and these are substantially different from chemicals used in the course of growing a crop.
Cells have to multiply to grow and rejuvenate, but again there is the importance of balance, as cells multiply for healthy reasons but when they over-multiply it can lead to cancer. A healthy body has a better chance of keeping the balance.
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