Biology Quiz 6

The liver secretes bile juice that does not contain enzymes but helps in digestion. Salivary gland secrets ptyalin which is the first digestive enzyme. The small intestine secrets maltase, and peptidase. The pancreas produces pancreatic amylase, trypsin, nuclease, nucleosidases, and lipase.

Both male and female mosquitoes eat the same things—Plant sap, nectar and plant derivatives—for energy. But only female mosquitoes imbibe a blood meal.

Men and women have an equal number of bones which is 206. A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults have.

Vitamin E is particularly important for the normal activity of sex glands as it improves blood flow and oxygen to sexual organs. It is an antioxidant that helps to maintain healthy skin, eyes and hormonal balance. It also enhances immune function and prevents clots from forming in heart arteries.

Christiaan Neethling Barnard introduced the use of artificial heart for surgery. He was a South African cardiac surgeon who performed the world's first human-to-human heart transplant operation.

Amla is called 'Herbal Indian Doctor' due to its immunity. The Vitamin C content of Amla makes it an excellent source of building immunity and metabolism. It is known to fight both viral and bacterial ailments efficiently and reducing the impact of various health problems.

colour blindness, inability to distinguish one or more of the three colours red, green, and blue. A man with colour blindness will see red as Green.

The pituitary gland is a small organ at the base of the brain. It produces and releases several hormones that help carry out important bodily functions. Through secretion of its hormones, the pituitary gland controls metabolism, growth, sexual maturation, reproduction, blood pressure and many other vital physical functions and processes.

Necrosis is cell or tissue death within a living body. It is a form of cell injury which results in the premature death of cells in living tissue by autolysis.

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.