Biology Quiz 5

As non-biodegradable wastes like plastic bags, glass bottles, etc., cannot be broken down by decomposers, their disposal poses a big problem. Recycling is one of the best solutions to get rid of non-biodegradable wastes.

The edible part in the onion is concentric fleshy, enlarged and scaly leaf bases.

Tranquilizer is a drug which is designed for the treatment of anxiety, fear, tension, agitation, and disturbances of the mind, specifically to reduce states of anxiety and bring about calmness.

Besides carbohydrates, a major source of energy in our food is constituted by Fats. Fat has more than twice as many calories per gram as carbohydrates and proteins. A gram of fat has about 9 calories, while a gram of carbohydrate or protein has about 4 calories.

In the fasting state, bears begin urea recycling and start losing fat tissue, although they retain their lean body mass. Such a medicine might be effective in treating obesity, as well as type II diabetes associated with it.

Chocolates can be bad for health because of a high content of nickel. Nickel is the most abundant toxic metal and its presence creates a serious risk to children's health.

Vitamin B₆ is one of the B vitamins. Deficiency of Vitamin B₆ in men causes anemia because it is needed to form red blood cells.

Ketone bodies are chemicals that the body makes when there is not enough insulin in the blood and it must break down fat instead of the sugar glucose for energy. Testing for ketones in urine is important in people with diabetes.

Molybdenum deficiency affects the activity of nitrate reductase. Without sufficient molybdenum plants accumulate nitrate in their leaves, but cannot use it to make proteins for normal growth. The plant becomes stunted and the leaves show symptoms of nitrogen deficiency, appearing pale green or yellowish-green in colour between the veins.

Ischemia is insufficient blood supply in the human body. It is a restriction in blood supply to tissues, causing a shortage of oxygen that is needed for cellular metabolism (to keep tissue alive).