Biology MCQs

Notes:
Dengue which is found in tropical and subtropical regions around the world is a mosquito borne disease and caused by a virus. Symptoms typically begin to appear three to fourteen days after infection.

Notes:
When red blood cells are placed in distilled water, the water molecules move into the cells by osmosis because the cells have a higher solute concentration than the distilled water. This influx of water causes the red blood cells to swell and eventually burst in a process known as hemolysis. This demonstrates how osmosis, a vital biological process, can result in cell damage when the external conditions are not balanced.

Notes:
Turmeric is a product of Curcuma longa, a rhizomatous herbaceous perennial plant belonging to the ginger family Zingiberaceae. They are native to tropical South Asia. There are 133 species of Curcuma all around the world.

Notes:
Ophiology is the branch of Biology that study Snakes. Thus Option [B] is correct. While the study of Moths and Butterflies is called as Lepidoteriology, The study of whale is called as Cetology and the study of Ants is called as Myrmecology.

Notes:
Python is a non-poisonous snake. Pythons are large muscular snakes which grow up to 35 feet and weigh as much as 300 pounds. Pythons are well known for the way they kill their preys by squeezing then to death and then swallowing them all at once.

Notes:
Bile or gall is a dark green to yellowish brown fluid, produced by the liver of most vertebrates that aids the digestion of lipids in the small intestine. In humans, bile is produced continuously by the liver and stored and concentrated in the gallbladder.

Notes:
The age at which wisdom teeth come through is variable but generally occurs between late teens and early twenties. Most adults have four wisdom teeth, one in each of the four quadrants, but it is possible to have none, fewer or more in which case the extras are called supernumerary teeth.

Notes:
The lathyrism resulting from the ingestion of Lathyrus odoratus seeds (Chick pea and pulses) is often referred to as odoratism or osteolathyrism, which is caused by a different toxin (beta-aminopropionitrile) that affects the linking of collagen, a protein of connective tissues.

Notes:
The aorta (the main blood supplier to the body) branches off into two main coronary blood vessels (also called arteries). These coronary arteries branch off into smaller arteries, which supply oxygen-rich blood to the entire heart muscle. The right coronary artery supplies blood to the right side of the heart.

Notes:
Odontology is a branch of medicine which deals with the structure and diseases related to the teeth.