NEET Biology Life Processes Life Process MCQs Set B

Question. The function of leaf in a plant is :
(a) Respiration
(b) Transpiration
(c) Photosynthesis
(d) All the above

Answer: D

Question. Leaves are destarched by keeping the plant in
(a) 10 – 12 hours in night
(b) 10 – 12 hours in day
(c) 2 hours in sun light
(d) Only 2 hours in night

Answer: A

Question. Covering with black paper strips should be tested for presence of :
(a) Water in leaf
(b) CO₂ in leaf
(c) O₂ in leaf
(d) Starch in leaf

Answer: D

Question. The type of starch produced during photosynthesis is :
(a) Polysaccharides
(b) Monosaccharides
(c) Oligosaccharides
(d) None of these

Answer: A

Question. If the intensity of light is increased, the rate of photosynthesis :
(a) Decreases upto certain limit
(b) Increases upto certain limit
(c) Remain the same
(d) Increases and decreases at regular interval

Answer: B

Question. The colour of light in which rate of photosynthesis is minimum :
(a) Red light
(b) Blue light
(c) Green light
(d) Yellow light

Answer: C

Question. Chlorophyll–a present in :
(a) Algae
(b) Bacteria
(c) Croton
(d) Both (a) and (c)

Answer: D

Question. A non-green cell will not have the following activity
(a) Required water
(b) Evolve carbon dioxide
(c) Requires carbohydrates
(d) Evolve O₂

Answer: D

Question. The teacher instructed a student to place a healthy potted shoe flower plant in a dark room for 24 hour prior to an experiment on photosynthesis. The purpose of placing it in a dark room is :
(a) To increase the intake of CO₂
(b) To activity the chloroplast in the leaves
(c) To destarch the leaves
(d) To denature the enzymes in the leaves

Answer: C

Question. During light reaction photosynthesis pigments chlorophyll–a absorbs visible light energy in the form of :
(a) Quanta or photons
(b) Electrons
(c) Protons
(d) Neutrons

Answer: A

Question. During chemical reaction between acid and base, Salt and water are formed. What is the process called ?
(a) Neutralization
(b) Corrosion
(c) Hydrolysis
(d) Ionization

Answer: A

Question. Which is the longest organ of the digestive system?
(a) Oesophagus
(b) Stomach
(c) Small INtestine
(d) Large Intestine

Answer: C

Question. The simplest amino acid is
(a) Lysine
(b) Leucine
(c) Glycine
(d) Methionine

Answer: C

Question. Gastric juice contains
(a) Pepsin and trypsin
(b) Pepsin and HCl
(c) Trypsin and HCl
(d) Amylase and Pepsin

Answer: B

Question. Decrease of vitamin C and Carotene contest in vegetables and fruits is due to ...
(a) Excess Potassium content in soil
(b) Excess Phosphate content in soil
(c) Less Nitrogen content in soil
(d) Less Potassium content in soil

Answer: A

Question. Match the items in Column - I with Column-II
     Column-I          Column-II
(a) Riboflavin         (i) Anemia
(b) Folic acid         (ii) Scurvy
(c) Retinol             (iii) Glossitis
(d) Ascorbic acid   (iv) NIght blindness
Select the correct matching
(a) A-(iii), B-(i), C-(iv), D-(ii)
(b) A-(iv), B-(i), C-(ii), D-(iii)
(c) A-(iii), B-(iv), C-(i), D-(ii)
(d) A-(ii), B-(i), C-(iv), D-(iii)

Answer: A

Question. What is the common product of both photosynthsis and respiration ?
(a) Oxygen
(b) ADP
(c) CO₂
(d) ATP

Answer: D

Question. One of the following juices secreted in the body of man does not contain any enzyme :
(a) Gastric Juice
(b) Saliva
(c) Bile Juice
(d) Pancreatic Juice

Answer: C

Question. Which part of the alimentary canal initiates digestion of protein :
(a) Mouth
(b) Oesophagus
(c) Stomach
(d) Small intestine

Answer: C

Question. If a photosynthsizing plant releases oxygen gas containing O¹⁵. It is concluded that the plant has been supplied with :
(a) C₆H₁₂O₆ containing O¹⁸
(b) CO₂ containing O¹⁸
(c) H₂O containing O¹⁸
(d) Oxygen in the form of ozone

Answer: C

Question. The tusks of female elephant are :
(a) Molars
(b) Lower incisors
(c) Upper incisors
(d) Canines

Answer: C

Question. Which of the following is least effective for photosynthesis ?
(a) Red light
(b) Blue light
(c) Green light
(d) Violet light

Answer: C