Model Paper 8 — NEET STD 11 Science — Question

Which constitutes the correct pairing

Thickening of arteries due to cholesterol deposition is

Select the correct matching of a hormone, its source and function.

Removal of shoot tips is a very useful technique to boost the production of tea - leaves. This is because

After about how many years of formation of earth, life appeared on this planet?

Which of the following tissue is called as "homeostatic reservoir''

Which one of the following produces AIDS

Fill in the blanks.
(i) Cancer causing agents are called A and cancer causing viruses are called B which have genes called C.
(ii) D or E genes present in normal cells when activated under certain conditions lead to oncogenic transformation of cells.
(iii) In treatment of cancer, patients are given substances called biological response modifier such as F which activates their immune system & helps in destroying tumor.
(iv) Heroin commonly called G is chemically H which is obtained from morphine by I reaction and is extracted from latex of poppy plant J (Scientific name).
(v) Cannabinoids are obtained from the infloroscence of the plant K. They are known for their effects on L system of body.
(vi) Cocaine is obtanied from coca plant M native to N. It interferes with transport of neuro- transmitter O.
(vii) Morphine is very effective P and Q and is very useful in patients who have undergone surgery.
(viii) R is a chemical substance in tobacco that stimulates adrenal gland to release adrenaline and nor-adrenaline into blood.
(ix) Adolescence means both S and T during which a child becomes mature. The period between U and V years of age is adolescence period.
(x) Dependence is the tendency of the body to manifest a characteristic and unpleasant W syndrome.
(xi) Excessive doses of drugs may lead to coma and death due to respiratory failure, heart failure or X.
(xii) The chronic use of drugs and alcohol damages nervous system and Y.
(xiii) The damage to liver due to excessive use of drugs and alcohol is called Z.
choose the correct option given below :-

First autotrophs on the primitive earth was/were