NTSE MAT Class 8 Biology Questions and Answers Set B

Question. The process of Transcription is involved in the ?
(a) Conversation of RNA & DNA
(b) Movement of RNA from nucleus
(c) Formation of RNA & DNA
(d) None of the options
Answer: (c) Formation of RNA & DNA

Question. Persons who received Nobel Prize for their work on green plants are
(a) Carsan & Van – U.San
(b) Calvin & Borlang
(c) Beadle & Tcrick
(d) None of the options
Answer: (b) Calvin & Borlang

Question. Genes are made of
(a) Hristones
(b) Poly nucleotides
(c) Hydrocarbon
(d) Lipoproteins
Answer: (b) Poly nucleotides

Question. The cell membrane is made of
(a) Phospho Proteins
(b) Proteins
(c) Phospholipid Proteins
(d) None of the options
Answer: (c) Phospholipid Proteins

Question. Which of the following diseases are sex – linked
(a) Maliganancy
(b) Levnemia
(c) Blood ness
(d) Hepatitis
Answer: (c) Blood ness

Question. Which vitamin deficiency caused the cracking of lips of the patient at corner ?
(a) Vitamin A
(b) Vitamin C
(c) Vitamin B2
(d) None of the options
Answer: (c) Vitamin B2

Question. What is weed ?
(a) Unwanted plant along with crops
(b) The root protein of the plants
(c) The disease cause to plants
(d) None of the options
Answer: (a) Unwanted plant along with crops

Question. The protein part of an enzyme is termed as
(a) Holoenzyme
(b) Ribosome
(c) Prostetic group
(d) Apoenzyme
Answer: (d) Apoenzyme

Question. Fungi resemble human beings in
(a) Their mode of nutrition
(b) Their requirement of oxygen for respiration
(c) Their stored food
(d) All of the above
Answer: (d) All of the above

Question. Quinine is obtained from
(a) Roots of Ravoltia Serpentine
(b) Bark of Cinchona
(c) Stigmas of Crocus
(d) None of the options
Answer: (b) Bark of Cinchona

Question. The first event in Photosynthesis is
(a) Photolysis of water
(b) Release of water
(c) Formation of ATP & NADPH
(d) Photoexitation of Chlorophyll & ejection of an electron
Answer: (d) Photoexitation of Chlorophyll & ejection of an electron

Question. Plants are made disease resistance by
(a) Crossing them with their wild relatives
(b) Crossing them with new varieties
(c) Giving x – rays in restricted doses
(d) None of the options
Answer: (a) Crossing them with their wild relatives

Question. The total number of Amino acids in natural is
(a) 20
(b) 25
(c) 30
(d) 200
Answer: (d) 200

Question. Protein catalysts of chemical reactions in biological systems are
(a) Hormones
(b) Enzymes
(c) Vitamins
(d) Both Harmones & enzymes
Answer: (b) Enzymes

Question. Carbohydrates may be defined chemically as
(a) Aldehyde or Ketone derivatives of the polyhedric alcoholes
(b) Compounds which yield as are derivatives on Hydrolysis
(c) Both a & b
(d) None of the options
Answer: (a) Aldehyde or Ketone derivatives of the polyhedric alcoholes

Question. Lipids are important dietary constituents because of
(a) High energy volume
(b) Fat – soluble vitamins
(c) Essential fatty acids
(d) All of the above
Answer: (d) All of the above

Question. Which of the following crops would require minimum quantity of urea of NPK for its growth
(a) Sugarcane
(b) Paddy
(c) Groundnut
(d) Black – gram
Answer: (d) Black – gram

Question. Which of the following are non – biogradable
(a) Egg shell
(b) Butter
(c) Detergents
(d) Leather
Answer: (c) Detergents

Question. Symptoms of food poisoning
(a) Nausea & abdominal pain
(b) Head & body etching
(c) Loose motion
(d) All of the above
Answer: (a) Nausea & abdominal pain

Question. A doctor noticed that the patient is pale & loosing weight with tiredness physically. What is its cause ?
(a) This disease is due to Iron deficiency & Vitamin B12
(b) This disease is due to deficiency of Vitamin C
(c) This disease is due to deficiency of Vitamin D& E
(d) All of the these
Answer: (a) This disease is due to Iron deficiency & Vitamin B12

Question. Spiracles of cockroach is known as
(a) 2 pairs
(b) 8 pairs
(c) 10 pairs
(d) None of the options
Answer: (c) 10 pairs

Question. Benign tertian liver in man is caused
(a) P. Vivax
(b) P – malaria
(c) P. Faclic prumbra
(d) P. ovale
Answer: (a) P. Vivax

Question. Water balance in fresh water protozoans is maintained by
(a) Food vacuoles
(b) Diffusion
(c) Nucleus
(d) Contractile Vacuoles
Answer: (d) Contractile Vacuoles

Question. Which is the most widely accepted theory of locomotion in Amoeba ?
(a) Sol – gel theory
(b) Rolling movement theory
(c) Walking movement theory
(d) None of the options
Answer: (b) Rolling movement theory

Question. Urea is produced in the body of man in a
(a) Kidney
(b) Urinary bladder
(c) Liver
(d) Blood
Answer: (c) Liver

Question. Rabbit is classified as a mammal because it posses
(a) Mammary glands & hair & pinna
(b) Mammary glands, hair, pinna & cochlea
(c) Hair, pinna, cochlea & teeth
(d) None of the options
Answer: (a) Mammary glands & hair & pinna

Question. In Kidney, glucose is mainly absorbed in the
(a) Bowman's capsule
(b) Distal Convoluted tubule
(c) Loop of Henle
(d) Proximal convoluted tubule
Answer: (d) Proximal convoluted tubule

Question. What will happen to the body of an adult human being if spleen is removed ?
(a) RBC production will be reduced
(b) Antibody production will less
(c) WBC production lowered
(d) Filtration of dead RBC will not be possible
Answer: (d) Filtration of dead RBC will not be possible

Question. Maligant fever is caused by speci
(a) Vivax
(b) Malaria
(c) Ovale
(d) Falciparum
Answer: (d) Falciparum

Question. Malaria is transmitted by
(a) Male anopheleles
(b) Female anopheleles
(c) Anopheleles
(d) Mosquitoes
Answer: (b) Female anopheleles