Lead poisoning (also known as plumbism or painter's colic) is caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems. It interferes with the development of the nervous system.

Correct Option: B

Lead poisoning (also known as plumbism or painter's colic) is caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems. It interferes with the development of the nervous system.

Muscle fibers or myofibrils are formed of three types of proteins which are
(a) contractile,
(b) regulatory, and
(c) structural. Contractile proteins are the force generators of muscle contraction. The two contractile proteins in myofibrils are Actin which is part of thin filament and Myosin, which is part of the thick filament.

Correct Option: A

Muscle fibers or myofibrils are formed of three types of proteins which are
(a) contractile,
(b) regulatory, and
(c) structural. Contractile proteins are the force generators of muscle contraction. The two contractile proteins in myofibrils are Actin which is part of thin filament and Myosin, which is part of the thick filament.

Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.

Correct Option: D

Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.

Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.

Correct Option: B

Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.

Lysosomes are known by names such as suicidal bags/ atom bomb and House keeper / scavenger of cell. They are called suicide bags or atom bombs because if the single membrane surrounding the digestive enzyme breaks, the enzymes released may also destroy the cell itself.

Correct Option: D

Lysosomes are known by names such as suicidal bags/ atom bomb and House keeper / scavenger of cell. They are called suicide bags or atom bombs because if the single membrane surrounding the digestive enzyme breaks, the enzymes released may also destroy the cell itself.