Eshala

 Q51.Minerals known to be required in large amounts for plant growth include 

(1) Magneslum sulphur, iron, zinc 

(2) Phosphorus, potassium, sulphur, calcium 

(3) Calcium, magnesium, manganese, copper 

(4) Potassium, phosphorus, selenium, boron

Ans.2

-----------------------------------

Q52. Deficiency symptoms of nitrogen and potassium are visible first in  

(1) Senescent leaves 

(2) Young leaves 

(3) Roots 

(4) Buds

Ans.1

----------------------------------- 

Q53. The first stable product of fixation of atmospheric nitrogen in leguminous plants is  

(1) Ammonia          (2) Ferric

 (3) Glutamate        (4) Ferrous

Ans.1

----------------------------------

Q54. Which one of the following is wrong statement? 

(1) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins  

(2) Nitrosomonas and Nitrobacter chemoautotrophs are 

(3) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also 

(4) Root nodule forming nitrogen fixers live as aerobes under free-living conditions

Ans.1

-----------------------------------

Q55. Which one of the following is correctly matched? 

(1) Potassium - Readily mobilization 

(2) Bakane of rice seedings - F Skoog

(3) Passive transport of nutrients - ATP 

(4) Apoplast - Plasmodesmata

Ans.1

----------------------------------

Q56. For its action, nitrogenase requires

(1) High input of energy 

(2) Light 

(3) Mn²+ 

(4) Super oxygen radicals

Ans.1

-----------------------------------

Q57. Best defined function of Manganese in green plants is 

(1) Nitrogen fixation 

(2) Photolysis of water

(3) Water absorption

(4) Calvin cycle 

Ans.2

----------------------------------

Q58. Nitrifying bacteria   

(1) Reduce nitrates to free nitrogen 

(2) Oxidize ammonia to nitrates 

(3) Convert free nitrogen to nitrogen compounds 

(4) Convert proteins into ammonia

Ans.2

-----------------------------------

Q59. The function of leghaemoglobin in the root nodules of legumes is 

(1) Expression of nif gene 

(2) Inhibition of nitrogenase activity 

(3) Oxygen removal 

(4) Nodule differentiation

Ans.3

-----------------------------------

Q60. Which one of the following elements in plants is not remobilised? 

(1) Sulphur 

(2) Phosphorus 

(3) Calcium 

(4) Potassium

Ans.3

---------------------------------- 

 Q41. Element that has its role in activation of enzyme nitrogenase is 

(1) Mn                 (2) Mo 

(3) Zn                  (4) Mg

Ans.2

----------------------------------- 

Q42. Deficiency symptoms of essential elements 

(a) Vary from element to element 

(b) Depend on mobility of elements also 

(c) Disappear when the deficient mineral nutrient is provided to the plant 

(1) Only (a) 

(2) Only (c) 

(3) Only (a) and (b) 

(4) All (a) (b) and (c)

Ans.4

------------------------------------

Q43. The deficiency symptoms of the immobile elements tend to appear first in the young tissues Select that elements 

(1) Ca           (2) N, P 

(3) B, N        (4) Mn

Ans.1

-----------------------------------

Q44. Which of the following bacteria reduce nitrate in soil into nitrogen? 

(1) Nitrosomonas 

(2) Nitrococcus 

(3) Nitrobacter 

(4) Thiobacillus

Ans.4

-----------------------------------

Q45. Thiobacillus is a group of bacteria helpful in carrying out

(1) Nitrogen fixation 

(2) Chemoautotrophic fixation 

(3) Nitrification 

(4) Denitrification

Ans.4

----------------------------------

Q46. In which of the following forms is iron absorbed by plants? 

(1) Ferric 

(2) Ferrous 

(3) Both ferric and ferrous 

(4) Free element

Ans.1

----------------------------------

Q47. Which of the following elements is responsible for maintaining turgor in cells

(1) Magnesium 

(2) Sodium 

(3) Calcium 

(4) Potassium

Ans.4

----------------------------------

Q48. Which is essential for the growth of root tip? 

(1) Zn              (2) Fe 

(3) Ca              (4) Mn

Ans.3

----------------------------------

Q49. In which of the following all three are macronutrients? 

(1) Nitrogen, sulphur, phosphorus 

(2) Boron, zinc, manganese 

(3) Iron, copper, molybdenum 

(4) Molybdenum, magnesium, manganese

Ans.1

----------------------------------

Q50. During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by 

(1) Cytochrome 

(2) Leghaemoglobin 

(3) Xanthophyll 

(4) Carotene

Ans.2

----------------------------------

 Q31. The pink coloured pigment produced in root nodules of leguminous plant 

(1) Is oxygen scavenger

(2) Is produced by plant only 

(3) Protects nitrogenase 

(4) Both (1) and (3)

Ans.4

-------------------------------------

Q32. The element which is a constituent of the ring structure of chlorophyll and the element involved in opening and closing of stomata are respectively 

(1) Mn, Cl          (2) Mg, P 

(3) Fe, S             (4) Mg, K

Ans.4

-------------------------------------

Q33. Which of the following is not related to mineral element Zn? 

(1) Activates enzyme carboxylase 

(2) Responsible for carbohydrate translocation 

(3) Causes little leaf disease in plants 

(4) Needed in the synthesis of auxin

Ans.2

------------------------------------- 

Q34. Reductive amination does not require (1) a-ketoglutaric acid 

(2) NADPH 

(3) Transaminase 

(4) NADP

Ans.3

------------------------------------- 

Q35. Choose the correct match. 

(1)Nitrogenase     -Sensitive to                                                                        

                                 molecular O₂ 

(2)Leghaemoglobin- Synthesised 

                                      by bacteria 

                                      only 

(3)Azotobacter       - Free living 

                                    anaerobic 

(4)Anabaena           - Free living 

                                    nitrifying 

                                    bacteria

Ans.1

------------------------------------ 

Q36. How many electrons and protons are required for reduction of one molecule of nitrogen? 

(1) 6e– & 6H+       (2) 8e–& 8H+ 

(3) 12e– & 12H+  (4) 16e– & 16H+

Ans.2

------------------------------------ 

Q37. Most common amides in plants are

(1) Asparagine and glutamic acid 

(2) Glutamine and asparagine 

(3) Transported through phloem 

(4) Formed by transamination

Ans.2

------------------------------------

Q38. Find out correct match 

(1)Necrosis-Ca, Mg, Na 

(2)Chlorosis-Zn, Mo, Mg 

(3)Delay in flowering-N, K, Si, Mo 

(4)Inhibition of - Ca, Mg, Co, K

     cell division 

Ans.2

-----------------------------------

Q39. Rhizobium in root nodules 

(1) Behave like obligate aerobe 

(2) Become anaerobic 

(3) Live as chemoautotrophs 

(4) Release auxin and GA3 for enlargement of root cells

Ans.2

-----------------------------------

Q40. Ammonia is oxidised to nitrite by

(1) Nitrosomonas 

(2) Azotobacter 

(3) Rhodospirillum 

(4) Frankia

Ans.1

----------------------------------- 

 Q21. Choose the odd one wrt macronutrients 

(1) Potassium     

(2) Calcium 

(3) Phosphorus   

(4) Manganese

Ans.4

----------------------------------

Q22. Which of the following is not the criteria for essentiality of a mineral element? 

(1) The element must not be absolutely necessary for normal plant growth and development 

(2) The element should not be replaceable

(3) The element should be directly involved in metabolism 

(4) In the absence of the element, the plant does not complete its life cycle or set seeds

Ans.1

-------------------------------------

Q23. The first phase of mineral uptake during influx 

(l) Involves apoplast 

(ll) Occurs through lon-channels 

(lll) Is a rapid process 

(1) Only (l) & (ll) are correct 

(2) Only (l) & (III) are correct 

(3) Only (ll) & (lll) are correct 

(4) All are correct

Ans.4

------------------------------------

Q24. The second phase of mineral ions movement during influx is 

(1) Apoplast and passive 

(2) Symplast and rapid 

(3) Symplast and active 

(4) Apoplast and slow

Ans.3

-----------------------------------

Q25. Best defined function of Manganese is 

(1) Maintenance of turgidity of cell 

(2) Formation of chlorophyll 

(3) Cell differentiation 

(4) Splitting of water during photosynthes

Ans.4

------------------------------------

Q26. Choose the Incorrect statement w. Mn-toxicity 

(1) Mn-toxicity in plant decreases fresh weight of plant by 10% 

(2) Mn-competes with Fe and Mg for uptake

(3) Mn-competes with Mg for binding with enzymes 

(4) Mn-inhibits Ca translocation to shoot apex

Ans.1

------------------------------------

Q27. The concentration of the essential element below. which plant growth is retarded is termed as 

(1) Toxic concentration 

(2) Critical concentration 

(3) Minimum concentration 

(4) Essential concentration

Ans.2

----------------------------------

Q28. The enzyme exclusively present in prokaryotes and capable of nitrogen reduction is 

(1) Nitrogenase 

(2) Leghaemoglobin 

(3) Nitrite reductase 

(4) Carboxylase

Ans.1

---------------------------------- 

Q29. How many ATP are required for production of 10 NH3 molecules in biological nitrogen fixation? 

(1) 160                     (2) 40 

(4) 16                       (4) 14

Ans.3

----------------------------------

Q30. Which of the following amino acid can give rise to other amino acids by transamination? 

(1) Glutamic acid 

(2) Aspartic acid 

(3) a-Ketoglutaric acid 

(4) Tryptophan

Ans.1

 Q11. Movement of ions into symplast area of a plant cell

(1) Is an active process 

(2) Is metabolic phase of mineral absorption 

(3) Does not involve transmembrane proteins 

(4) Both (1) and (2)

Ans.4

----------------------------------- 

Q12. Read the following statements and choose the correct option.  

A: Asparagine contains more nitrogen than aspartic acid. 

B: Amides are derived from amino acids in which hydroxyl part of acid is replaced by another amino group. 

(1) Only A is true 

(2) Only A is false 

(3) Both A and B are true 

(4) Both A and B are false

Ans.3

-----------------------------------

Q13. Mark the odd statement for ureides

(1) Transported via vessels 

(2) Have low nitrogen to carbon ratio 

(3) Formed in soyabean plant 

(4) Produced inside nodule

Ans.2

-----------------------------------

Q14. Which of the following is not a benefit of hydroponics? 

(1) Controls soil borne pathogens 

(2) Can regulate pH for a specific crop 

(3) Can be used in areas having thin, infertile and dry soils 

(4) High cost of setting

Ans.4

----------------------------------- 

Q15. Deficiency of which element is not responsible for death of leaf tissues? 

(1) Mo                    (2) Ca 

(3) Mg                    (4) K

Ans.1

------------------------------------

Q16. Elements found in ferredoxin are 

(1) Fe and S         (2) Fe and Ca 

(3) Fe and Zn      (4) Fe and Mn

Ans.1

----------------------------------- 

Q17. Read the following statements and mark them as True (T) or False (F).  

A. Plants can assimilate ammonium ions only 

B. Rhizobium is an obligate anaerobe 

C. In legumes, nodule is formed by inner cortex and pericycle cells. 

                A              B             C 

(1)           T              F             T 

(2)           F              F             T

(3)           F              T             F 

(4)           T              F             F

Ans.2

-----------------------------------

Q18. Hydroponics 

(1) Requires tap water and mineral nutrient salts 

(2) is a technique of growing plants in a nutnant solution in the complete absence of soil md 

(3) It has been successfully employed as technique for the commercial production of fruits like apple, orange etc 

(4) The solution should be poorly aerated to obtain the optimum growth

Ans.2

-----------------------------------

Q19. Which of the following option represents trade elements? 

(1) Ca, Mg            (2) P, K 

(3) Fe, Mg            (4) Mn, Mo

Ans.4

-----------------------------------

Q20. Choose the correct match 

         Element           Activator of 

(1)    Mg                  - PEPcase 

(2)    Zn                   - RuBisCo

(3)    Mo                  - Catalase 

(4)    Fe                    - Nitrate 

                                    reductase

Ans.1

----------------------------------

         MINERAL  NUTRITION

Q1. Which set of elements become toxic when their concentration exceeds 10 mmol/kg of dry matter in plants? 

(1) Cl, Mg, S             (2) S, Mg, Fe 

(3) B, Zn, Cu             (4) Mn, Mg, Ca

Ans.3

--------------------------------------

Q2. Match the column I of elements with their deficiency symptoms in plants in column II and then select the correct option. 

        Column I            Column II 

      (Elements)          (Deficiency 

                                     symptoms) 

a. Zn                      (i) Plastid 

                                  disintegration 

b. Mn                    (ii) Accumulation of                   

                                  anthocyanin

c. S.                      (iii) Grey spots 

                                   in oats 

d. K                      (iv) Little leaf 

(1) a(iv), b(ii), c(iii), d(i) 

(2) a(i), b(ii), c(iii), d(iv) 

(3) a(ii), b(i), c(iv), d(iii) 

(4) a(iv), b(iii), c(ii), d(i)

Ans.4

--------------------------------------

Q3. Which of the following prevents inactivation of enzyme nitrogenase by oxygen poisoning, during biological nitrogen fixation? 

(1) Nod factors 

(2) Leguminous haemoglobin 

(3) Cytochrome 

(4) Amides

Ans.2

--------------------------------------

Q4. Which one of the following elements helps in photolysis of water and to maintain anion-cation balance in cells?  

(1) Boron 

(2) Chlorine 

(3) Manganese 

(4) Potassium

Ans.2

-------------------------------------

Q5. Select the correct set of non-mineral essential elements 

(1) C, CI, N            (2) C, H, B 

(3) C, H, O             (4) H, O, CI

Ans.3

------------------------------------

Q6. Select the Incorrect statement related to Mn toxicity  

(1) Prevention of binding of Mg with enzymes 

(2) Promotion of Ca translocation to shoot apex 

(3) Reduction in uptake of Mg 

(4) Combined deficiency symptoms of Mg, Fe and Ca

Ans.2

------------------------------------ 

Q7. Nitrifying bacteria such as Nitrosomonas and Nitrobacter are

(1) Heterotrophs 

(2) Photoautotrophs 

(3) Symbiotic 

(4) Chemoautotrophs

Ans.4

-------------------------------------

 Q8. Molybdenum (Mo) is component of 

(1) Nitrate reductase 

(2) Ferredoxin 

(3) Auxin 

(4) Catalase

Ans.1

------------------------------------ 

Q9. Sulphur is not a component of

(1) Cysteine 

(2) Biotin 

(3) Deoxyadenosine 

(4) Coenzyme-A

Ans.3

------------------------------------

Q10. Identify the element on the basis of given statements. 

a. Its deficiency symptoms first appear in young leaves 

b. It is required in formation of mitotic spindle 

(1) B                         (2) Fe 

(3) Ca                      (4) S 

Ans.3

 Q141.At rest when muscle is relaxed, the thin filaments interdigitate with the thick filaments only 

(1) Outside A-band 

(2) Outside H-band 

(3) Inside I-band 

(4) Inside M-line 

Ans.4

----------------------------------

Q142.In which category of muscle fibres, can contraction be initiated by neurotransmitter acetylcholine

(1) Skeletal muscle fibre 

(2) Cardiac muscle fibre 

(3) Smooth muscle fibres 

(4) All of these 

Ans.4

----------------------------------

Q143.Anaerobic work becomes painful due to accumulation of 

(1) Ca+2ions

(2) Myosin 

(3) Lactic acid 

(4) Creatine phosphate 

Ans.3

----------------------------- 

Q144.Contractile unit of muscle is part of myofibril between 

(1) Z-line and I-band 

(2) Z-line and Z-line 

(3) Z-line and A-band 

(4) A-band and I-band

Ans.2

----------------------------------

 Q145Which bone is keystone of the cranial floor? 

(1) Parietal 

(2) Occipital 

(3) Sphenoid 

(4) Frontal 

Ans.3

---------------------------------

Q146.Which is the only movable skull bone other than auditory ossicles? 

(1) Maxillae 

(2) Mandible 

(3) Inferior nasal conchae 

(4) Zygomatic

Ans.2

-----------------------------------

Q147.Which is the best distinguishing feature of thoracic vertebrae? 

(1) They have larger transverse process 

(2) Their spinous process is directed posteriorly 

(3) They articulate with the ribs 

(4) Absence of vertebral transverse foramen 

Ans.3

--------------------------------------

Q148.Which part can be easily felt as high point of shoulder? 

(1) Sterno-clavicle joint 

(2) Acromian-clavicle joint 

(3) Gleno-clavicle joint 

(4) Superior angle of scapula 

Ans.2

--------------------------------------

Q149.Sella turcica, a depression enclosing the pituitary gland is found in 

(1) Temporal bone 

(2) Parietal bone 

(3) Sphenoid bone 

(4) Frontal bone

Ans.3

----------------------------------

Q150.When formed by the ossification of tendon is called

(1) Sesamoid

(2) Cartilage or replacing bone

(3) investing or dermal bone

(4) Membranous bone

Ans.1

 Q131.The heaviest and largest vertebrae in humans are  

(1) Thoracic 

(2) Lumbar 

(3) Cervical 

(4) Sacral 

Ans.2

------------------------------------

Q132.Type of vertebrae in case of human is

(1) Amphiplatyan 

(2) Procoelus 

(3) Amphicoelus 

(4) Heterocoelus 

Ans.1

-----------------------------------

Q133.Deltoid ridge is found in which one of the following bones? 

(1) Radius

(2) Tibia 

(3) Femur 

(4) Humerus 

Ans.4

---------------------------------

Q134.Olecranon fossa is present with 

(1) Radius 

(2) Ulna 

(3) Humerus 

(4) Femur 

Ans.3

----------------------------------

Q135.Phalangeal formula for the hand of a human is 

(1) 23333 

(2) 33333 

(3) 33322 

(4) 32333 

Ans.1

----------------------------------

Q136.Obturator foramen is enclosed between 

(1) Ilium, ischium and pubis 

(2) Ischium and pubis 

(3) Ilium and ischium 

(4) Ilium and pubis

Ans.2

---------------------------------

Q137 Which of the following are involved in the formation of acetabulum? 

a. Ilium 

b. Ischium 

c. Pubis 

(1) b & c only 

(2) a, b & c 

(3) a & b only 

(4) a & c only 

Ans.2

---------------------------------

Q138.Select the odd one w.r.t. girdle bones

(1) Clavicle

(2) Ileum 

(3) Ischium 

(4) Pubis

Ans.2

--------------------------------

Q139.Which one of the following is a viral disease that weakens the muscles?

(1) Myasthenia gravis

(2) Poliomyelitis

(3) Muscular dystrophy

(4) Muscular hypertrophy

Ans.2

------------------------------------

Q140.The number of thick myofilaments (myosin) surrounding single thin myofitament (actin) are 

(1) 3

(2) 6

(3) 2

(4) 4

Ans.1

 Q121.Which of the following muscles are not under the voluntary control of nervous system? 

(1) Pharynx 

(2) Wall of urinary bladder 

(3) Anterior end of oesophagus 

(4) Tongue 

Ans.2

-------------------------------

Q122.During muscle contraction in a skeletal muscle fibre, Ca2+ combines with

(1) TpT 

(2) TpC 

(3) Tpl 

(4) Tropomyosin 

Ans.2

 ------------------------------------

Q123.The contraction of muscle of shortest duration is seen in 

(1) Jaws 

(2) Heart 

(3) Eyelids 

(4) Intestine 

Ans.3

--------------------------------

Q124.In a contracted skeletal muscle fibre

(1) M line disappears 

(2) H-zone elongates 

(3) I-band remains constant 

(4) A-band disappears 

Ans.1

---------------------------------

Q125.Which one of the following ions is essential for muscular contraction? 

(1) Na+, Ca++ 

(3) Mg+, K+ 

(2) Mg++, Ca++ 

(4) K+, Na+ 

Ans.2

--------------------------------

Q126.The potential difference across the membrane of a relaxed muscle fibre is called resting potential. In skeletal muscle fibre, it amounts to about 

(1) -90 mV 

(2) 50 mV 

(3) 50-100 mV 

(4) 100 mV 

Ans.1

--------------------------------------

Q127.Cori cycle involves 

(1) Liver only 

(2) Muscles only 

(3) Both liver and muscles 

(4) Bones 

Ans.3

-------------------------------------

Q128.Foramen magnum is associated with which bone? 

(1). Frontal 

(2) Parietal 

(3) Temporal 

(4) Occipital 

Ans.4

---------------------------------

Q129.Tongue bone is 

(1) Mandible 

(2) Hyoid 

(3) Flat bone 

(4) Coccyx

Ans.2

-------------------------------------

Q130.Number of anterior curves present with human vertebral column is 

(1) 4 

(2) 1 

(3) 2 

(4) 6 

Ans.3

------------------------------------

 Q111.Which of the following bones is/are not paired? 

(1) Maxilla 

(2) Nasal 

(3) Vomer 

(4) Palatine 

Ans.3

------------------------------------

Q112.Knee cap is formed of a triangular bone patella, which is modified 

(1) Cartilage 

(2) Skin 

(3) Tendon 

(4) Ligament Aakash

Ans.3

-----------------------------------------

Q113.Movement of atlanto-occipital joint is an example of 

(1) Ellipsoidal joint 

(2) Gliding joint 

(3) Hinge joint 

(4) Ball and socket joint 

Ans.1

------------------------------------

Q114.Dermal, S-shaped with 2 curvatures one of which interacts with sternum is 

(1) Pelvic girdle of mammals 

(2) Skull of frog Clavicle

(3) Clavicle 

(4) Scapula 

Ans .3

-------------------------------------

Q115.Select the true statement 

(1) A band is present in the middle of sarcomere 

(2) H zone is present in the middle of A-band 

(3) M line is present in the middle of H-zone. 

4) All of these 

Ans.4

-------------------------------------

Q116.In which of the following functions, are white muscles not used? 

(1) Moving of eye balls 

(2) Fast and strenuous work for short duration 

(3) For sustained work at a slow rate for a prolonged duration 

(4) Fast flight in sparrows 

Ans.3

-----------------------------------------

Q117.The backward bending of the shank is worked out by 

(1) Gluteus maximus 

(2) Quadriceps femoris muscles 

(3) Adductor group of muscles 

(4) Gastrocnemius and hamstring 

Ans.4

-----------------------------------------

Q118.Which one is not the character of red skeletal muscle fibres? 

(1) Smaller diameter 

(2) More mitochondria 

(3) More sarcoplasmic reticulum 

(4) More blood capillaries 

Ans.3

----------------------------------------

Q119.Which of the following is an example of multiunit smooth muscles? 

(1) Smooth muscles in uterine wall 

(2) Smooth muscles in the intestinal wall

(3) Masseter muscle of the jaw 

(4) Arrector pili muscles of skin 

Ans.4

------------------------------------

Q120.Least blood supply will be present in case of 

(1) Skeletal muscles 

(2) Smooth muscle 

(3) Cardiac muscle 

(4) Striated muscles

Ans.2

-----------------------------------