Model Paper 7 — NEET STD 11 Science — Question

Modern lifestyle is responsible for

Assertion : Our body secretes adrenaline in intense cold.
Reason : Adrenaline raises metabolic rate

Assertion: Movement is one of the significant features of living beings.
Reason: Streaming of protoplasm in the unicellular organisms like Amoeba is a simple form of movements.

Green glands found in some arthropods take part in

Which one of the following groups of animals is correctly matched with its characteristic feature without any exception?

The cerebral cortex is referred to as the grey matter due to its greyish appearance. The ........... are concentrated here giving the colour.

Which of the following statements are not correct for disorders of circulatory system ?
(i) If repeated checks of blood pressure of an individual is 140/90 (140 over 90) or higher, it shows hypertension.
(ii) High blood pressure leads to heart diseases and also affects vital organs like brain and kidney.
(iii) Coronary artery disease, often referred to as atherosclerosis, affects the vessels that supply blood to the heart muscle.
(iv) Atherosclerosis is caused by deposits of calcium, fat, cholesterol and fibrous tissues, which makes the lumen of arteries narrower.
(v) Angina or angina pectoris is acute chest pain which appears when no enough oxygen is ching the heart muscle.
(vi) Angina can occur in men and women of any age but it is more common among the middle-aged and elderly.
(vii) Heart failure is same as cardiac arrest or a heart attack.