KPSC/KAS/PSI/FDA Exam Biology MCQs Part-3

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KPSC/KAS/PSI/FDA Exam Biology MCQs Part-3

101.​ The food material prepared in the plants is transported to the various organs by which of the following?

​(a)​ Xylem

​(b)​ Phloem

​(c) ​Cortex

​(d) ​Cambium

102. ​The suitable conditions in which the rate of evaporation occurs more fastly are

​(a) ​Low speed of wind

​(b)​ High humidity

​(c) ​Low humidity and high temperature

​(d)​ Excess amount of water in the soil

103. ​Process by which plants prepare their food is

​(a) ​Carbohydrolysis

​(b) ​Metabolic synthesis

​(c) ​Photosynthesis ​

(d) ​Photorespiration

104. ​In photosynthesis ​

(a)​ Light energy is converted into chemical energy

(b) ​Chemical energy is converted into light energy ​

(c)​ Chemical energy is converted into electrical energy

​(d) ​Light energy is converted into mechanical energy

105.​ Which of the following organelles of a cell is involved in photosynthesis? ​

(a)​ Chloroplast

​(b) ​Mitochondria

​(c)​ Golgi bodies

​(d)​ Endoplasmic reticulum

106.​ The ultimate cause of water movement in a plant stem against gravity is

(a) ​Osmosis

​(b) ​Photosynthesis ​

(c)​ Transpiration

​(d)​ Diffusion

107.​ A seed is ripened:

​(a) ​Ovary

​(b)​ Flower ​

(c)​ Gynoecium

​(d) ​Ovule

108. Which of the following plants produce only seeds but no fruit? ​

(a) ​Sugarcane

​(b)​ Peanut ​

(c)​ Cycas ​

(d) ​Almond

109.​ Photosynthesis using the invisible part of the sunlight is done by ​

(a) ​Trees

​(b) ​Algae ​

(c)​ Fungi ​

(d)​ Bacteria

110.​ Which one of the following is not an essential micronutrient for plants?

​(a) ​Boron

​(b)​ Zinc

(c) ​Sodium ​

(d)​ Copper

111.​ Which of the following plant hormone is mainly responsible for fruit ripening? ​

(a) ​Cytokine

​(b)​ Abscisic acid

​(c)​ Ethylene

​(d)​ None of these

112.​ Pollination by snail is called ​

(a)​ Zoophily ​

(b)​ Entomophily ​

(c)​ Chiropteriphily

​(d)​ Malacophily

113. ​The natural dye present in turmeric is known as ​

(a) ​Cinnamon ​

(b)​ Phenolphthalein

​(c) ​Methyl orange

​(d) ​Curcumin

114. ​The main function of the inner bark of a woody plant is to ​

(a)​ transport minerals and water from the roots to the leaves ​

(b) ​act as a membrane impermeable to water and  gas ​

(c)​ transport food from the leaves to the other parts of the plant

(d)​ protect the plant from herbivorous animals

115.​ Which one of the following is modification of parenchyma?

​(a) ​Fibres found in phloem ​

(b)​ Tracheids

​(c)​ Vessel

​(d) ​Chlorenchyma

116.​ Which of the following are absent in gymnosperms?

​(a) ​Xylem vessels ​

(b)​ Xylem fibres ​

(c)​ Tracheids and fibres ​

(d) ​All of these

117. Consider the following statements: ​

1.​ Annual rings are distinct in plants which grow in temperate region.

​2. ​One growing ring of plant consists of only spring wood. ​

Which of the statements given above is/are correct about annual ring? ​

(a)​ 1 only

​(b)​ 2 only ​

(c)​ 1 and 2 ​

(d) ​Neither 1 nor 2  

118. ​Match List-I with List-II and select the correct answer by using the codes given below:

List-IList-II
Dark reactionGrana of chloroplast
Light reactionStroma of chloroplast
GlycolysisCytoplasm
Krebs’s cycleMitochondrial matrix

            A          B          C          D

(a)        2          1          3          4

(b)        3          4          2          1

(c)        1          3          4          2

(d)        4          2          1          3

119.​ Consider the following statements:

​1.​ Food prepared by plant is transported to different parts of plant through phloem. ​

2.​ Water and minerals in plant is transported through phloem.

​3.​ The cell wall of phloem cells is rich in lignin. ​

Which of the statements given above is/are correct? ​

(a) ​1 only

​(b) ​2 and 3

(c) ​1 and 3

​(d)​1, 2 and 3

120.​Match the following:

List-IList-II
Chili pepperCapsaicin
CorianderAllicin
GarlicLycopene
TomatoGeraniol

            A          B          C          D

(a)        1          4          2          3

(b)        3          1          2          4

(c)        4          3          1          2

(d)        2          1          3          4

121.​Consider the following statements:

​1.​ Carbon dioxide, chlorophyll and sunlight all are essential for photosynthesis.

2.​ Rate of photosynthesis is minimum in red light and maximum in green light. ​

3.​ Increase in O2 concentration decreases photosynthesis. ​

Which of the statements given above are correct about photosynthesis? ​

(a) ​1 and 2 ​

(b)​ 2 and 3

​(c) ​1 and 3

​(d)​1, 2 and 3

122.​Consider the following statements and choose the correct ones.

​1.​ Anthesis is a phenomenon of ripening of fruits. ​

2.​ Fruits developed without fertilization are parthenocarpic. ​

3. ​Plants undergo single fertilization event. ​

(a)​ 1 and 2 only ​

(b) ​1 only ​

(c)​ 2 only ​

(d)​ All are correct

123.​Consider the following statements: ​

1.​ Photolysis of water involves breakdown of oxygen by light.

​2.​ The specific function of light energy in the process of photosynthesis is to activate chlorophyll. ​

3.​ By-product of photosynthesis is carbon dioxide.

Which of the statements given above is/are correct?

​(a)​ 1 only ​

(b)​ 2 only

​(c)​ 3 only ​

(d)​ 1, 2 and 3

124. ​Vaseline was applied to both surfaces of the leaves of a plant. Which of the following process/processes would be affected?

​1.​ Photosynthesis

​2.​ Respiration

​3.​ Transpiration ​

Select the correct answer using the codes given below: ​

(a) 1 and 3 only

​(b)​ 2 only

​(c) ​2 and 3 only

​(d)​1, 2 and 3

125. ​Which of the following is a correct statement about nitrogen fixation? ​

(a)​ Plants convert atmospheric nitrogen to ammonia. ​

(b)​ Ammonia is converted to N2, which is the form of nitrogen most easily absorbed by plants.

​(c)​ Mutant strains of Rhizobium are able to secrete excess protein into the soil. ​

(d)​ The enzyme Nitrogenase reduces N2 to form ammonia.

126. ​Consider the following facts about plants. ​

1.​ Carbon dioxide and water vapour in plants are produced as wastes during respiration. ​

2.​ Oxygen is produced as a waste during photosynthesis. ​

3.​ The gaseous wastes of respiration and photosynthesis in plants are removed through the xylem vessels. ​

The correct answer is:

​(a)​ 1 and 2 ​

(b)​ 2and 3 ​

(c)​ 1 and 3 ​

(d)​ 1, 2 and 3

127.​Consider the following statements:

​1.​ Androecium and gynoecium are reproductive organs of flower. ​

2. ​Calyx and corolla are accessory female reproductive organs of a flower.

​Which of the statements given above is/are correct?

​(a)​ 1 only ​

(b)​ 2 only ​

(c)​ Both 1 and 2

​(d) ​Neither 1 nor 2

128. ​Consider the following statements: ​

1.​In algae, the reproductive organs are single-celled. ​

2.​Fern plants lack true vascular system.

Which of the statements given above is/are correct? ​

(a) ​Only 1 ​

(b) ​Only 2 ​

(c) ​Both 1 and 2 ​

(d)​ Neither 1 nor 2

129. ​Which of the following statements about sexual reproduction in flowering plants are correct? ​

1.​ Stamen is present in the centre of a flower.   

​2.​ Stamen produces pollen grains in the ovary. ​

3. ​The swollen bottom part of carpel is the ovary. ​

4.​ The fusion of germ cells gives rise to zygote. ​

Select the correct answer using the code given below. ​

(a) 2, 3 and 4 only ​

(b) 2 and 4 only

​(c)​ 1 and 3 only ​

(d)​ 1, 2, 3 and 4 only

130. ​Vivipary in plants means ​

(a)​ germination of seeds in the crevices of stem where some soil is deposited

​(b) ​development of pea nut fruits after the fertilization ​

(c) ​organization of several shoots ​

(d)​ germination of seeds inside the fruit while it is still on the plant parent tree

131.​ Choose the forms in which most plants absorb nitrogen

​(i) ​Proteins

​(ii)​ Nitrates and Nitrites

​(iii) ​Urea

​(iv)​ Atmospheric nitrogen

Codes

(a) ​​(i) and (ii)

​(b)​ (ii) and (iii) ​

(b) ​(iii) and (iv)

​(d) ​(i) and (iv)

132. ​Which of the following statement(s) is (are) correct? ​

(i) ​Pyruvate can be converted into ethanol and carbon dioxide by yeast

​(ii) ​Fermentation takes place in aerobic bacteria ​

(iii) ​Fermentation takes place in mitochondria ​

(iv)​ Fermentation is a form of anaerobic respiration

Codes

(a) ​​(i) and (iii)

​(b) ​(ii) and (iv) ​

(c) ​(i) and (iv)

​(d)​ (ii) and (iii)

133.​Offspring formed by asexual method of reproduction have greater similarity among themselves because

​(i)​ asexual reproduction involves only one parent

(ii) ​asexual reproduction does not involve gametes

​(iii) ​asexual reproduction occurs before sexual reproduction

​(iv)​ asexual reproduction occurs after sexual reproduction ​

Codes

(a) (i) and (ii)

​(b)​ (i) and (iii)

​(c)​ (ii) and (iv) ​

(d)​ (iii) and (iv)

134. ​Factors responsible for the rapid spread of bread mould on slices of bread are

​(i) ​large number of spores ​

(ii)​ availability of moisture and nutrients in bread ​

(iii)​ presence of tubular branched hyphae

​(iv)​ formation of round shaped sporangia

Codes

​(a)​ (i) and (iii) ​

(b)​ (ii) and (iv) ​

(c) ​(i) and (ii) ​

(d)​ (iii) and (iv)

135.​ Which one of the following gases is essential for photosynthesis process? ​​​ [UP-PCS 2011] ​(a) ​CO

​(b)​ CO2 ​

(c)​ N2

(d)​ O2

136.​ Chlorophyll contains​​​ [UP-PCS 2012]

​(a)​ Iron ​

(b)​ Copper

​(c)​ Magnesium ​

(d) ​Manganese

137. ​Photosynthesis using the invisible part of the sunlight is done by some​​​ [UP-PCS 2013]

​(a) ​Trees ​

(b)​ Algae

​(c) ​Bacteria

​(d) ​Fungi

138.​ Which of the following accounts for red colour of tomato? [UP-PCS 2016] ​

(a) ​Capsaicin ​

(b)​ Carotene

​(c)​ Anthocyanin ​

(d)​ Lycopene

139.​Consider the following statements: ​ [UP-RO 2016] ​

Assertion (A) : Cuscuta (Amarbel) is an example of parasitic angiosperm.

​Reason (R) : It gets its nutrition from the host plant. ​

Choose your answer from the codes give below –

(a) ​Both (A) and (R) are true and (R) is the correct explanation of (A) ​

(b) ​Both (A) and (R) are true but (R) is not the correct explanation of (A) ​

(c)​ (A) is false, but (R) is true

​(d)​ (A) is rue, but (R) is false Animal/ Human Anatomy/ Physiology

140.​ The enzymes are killed ​

(a) ​at a very high temperature

​(b) ​during chemical reaction ​

(c)​ at low temperature

​(d)​ under atmospheric pressure

141. ​Which has maximum calorific value? ​

(a)​ Fat ​

(b) ​Protein

​(c)​ Carbohydrate

​(d)​ Amino acid

142. ​pH of human body varies within the range of ​

(a)​ 6.0 to 6.5 ​

(b)​ 5.5 to 5.8 ​

(c)​ 7.0 to 7.8 ​

(d)​ 7.0 to 11.0

143.​ Which of the following hormones contains Iodine ?

(a) ​Thyroxine

​(b) ​Testosterone

(c) ​Insulin ​

(d) ​Adrenaline

144.​ Arteries supplying blood to the heart are called ​

(a)​ Carotid arteries ​

(b)​ Hepatic arteries ​

(c)​ Coronary arteries ​

(d)​ Pulmonary arteries

145.​ The hormone insulin is a

​(a) ​glycolipid ​

(b) ​fatty acid ​

(c)​ peptide ​

(d) ​sterol

146.​ In which organ of the human body are the lymphocytes formed? ​

(a) ​Liver ​

(b)​ Bone marrow

​(c)​ Pancreas

​(d) ​Spleen

147. ​In human body, which one of the following hormones regulates blood calcium and phosphate?

​(a)​ Glucagon

(b)​ Growth hormone ​

(c) ​Parathyroid hormone ​

(d)​ Thyroxine

148. ​In the human beings, normally in which one of the following parts, does the sperm fertilize the ovum?

​(a)​ Cervix ​

(b) ​Fallopian tube

​(c)​ Lower part of uterus

​(d)​ Upper part of uterus

149.​ Which one of the following parts of human brain is the regulating centre for swallowing and vomiting? ​

(a)​ Cerebellum

​(b) ​Cerebrum

​(c) ​Medulla oblongata

​(d) ​Cortex

150.​ Production of which one of the following is associated with the function of the liver? ​

(a)​ Lipase

​(b)​ Urea ​

(c)​ Mucus ​

(d)​ Hydrochloric acid


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