Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

151.

Synapses are mainly found in?

Answer»

Synapses are mainly found in the brain, spinal cord and around the spinal cord.

152.

The cells which are destroyed by viruses in Polio disease ………A) Monocytes B) Erythrocytes C) Motor nerves D) Sensory nerves

Answer»

(C) Motor nerves

153.

Fill in the blanks :Wilkinson’s catalyst ……… is used for hydrogenation of alkenes

Answer»

[(P Ph3)3Rh Cl]

154.

Guess the correct answer in the ‘?’ box A) Growth promoters B) Growth inhibitors C) Tropic D) Trophism

Answer»

Answer is (C) Tropic

155.

Fill in the blanks:Living organisms _____and react to their environment. All our functions are carried out by an _____of several systems working together. The __________ and endocrine system are the two systems that control and coordinate various functions in the body.The responses of the ____________ can be classified as a reflex, voluntary and involuntary actions. Responses are brought about by _________changes in some muscles.The human nervous system is studied under_________. The central nervous system and the peripheral nervous system.

Answer»
  1. Living organisms respond and react to their environment.
  2.  All our functions are carried out by an effort of several systems working together. 
  3. The nervous system and endocrine system are the two systems that control and coordinate various functions in the body.
  4. The responses of the nervous system can be classified as a reflex, voluntary and involuntary actions.
  5.  Responses are brought about by rapid changes in some muscles.
  6. The human nervous system is studied under two divisions. The central nervous system and the peripheral nervous system.
156.

What happens if all the functions of the human body are controlled only by brain? (OR)Brain controls all the functions of the human body. Comment on it.

Answer»

1. If all actions of the human body are controlled by brain, our body will get harm in dangerous situations.

2. Some actions may be delayed and our brain could not conduct reflex actions, which require immediate action to a stimulus. 

3. For example, when we touch a hot object, we require an immediate response to save our hand. If the brain controls this action, the time taken will be more and our hand will burn. 

4. So, it is controlled by spinal cord, the response will be quick, and we may escape the danger. 

5. Nerves can not reach the every corner of the body, whereas hormones of endocrine glands can do that. 

6. So it’s not good that all functions are controlled by brain.

157.

If you visit a doctor, what doubts you would like to clarify about pancreas?

Answer»

1. What is pancreas? 

2. Where is pancreas located in our body? 

3. Why is it called mixed gland? 

4. What is the exocrine part of pancreas? 

5. What is the endocrine part of pancreas? 

6. What are the cells that secrete hormone insulin? 

7. What is the function of insulin? 

8. What happens if required amounts of insulin is not produced? 

9. What are the symptoms of diabetes? 

10. How can diabetes be controlled?

158.

What is the function of dorsal root ganglion?

Answer»

The dorsal root ganglion carries messages of sensation toward brain or spinal cord.

159.

The number of pairs of cranial nerves in man A) 10 B) 11 C) 12 D) 13

Answer»

Answer is (C) 12

160.

What are cranial nerves? How many cranial nerves are present?

Answer»

Nerves originate from brain are called cranial nerves. 12 pairs of cranial nerves arise from brain.

161.

Where do we find Cerebro-spinal fluid? Mention one of its functions.

Answer»

The space between the inner layers of brain is filled with fluid called cerebrospinal fluid (CSF). It serves as a shock-absorbing medium and protects the brain against shocks, jerks along with the meninges and cranium.

162.

The scientists who observed the liveliness of frog even after the removal of brain is …… A) Davinci, Stephen Hales B) Davinci, Darwin C) Stephen Hales, Francis D) Charles Bell

Answer»

A) Davinci, Stephen Hales

163.

The scientists who proved/ showed the functions of two roots of spinal cord are ………A) Charles Bell, Stephen Hales B) Charles Bell, MagendieC) Da Vinci, Magendie D) Francis, Magendie

Answer»

B) Charles Bell, Magendie

164.

Roots of a plant show: A) positive phototropism and negative geotropism B) negative phototropism and positive geotropism C) negative tactic movement and positive tropic movement D) positive geotropism of stem and roots

Answer»

B) negative phototropism and positive geotropism

165.

Observe the following a,b statements. a) Abscisic acid prevents seed dormancy. b) Gibberellin promotes seed dormancy. A) a,b both are true B) a is true b is false C) a is false b is true D) a,b both are false

Answer»

(D) a,b both are false

166.

The tree branched like structures appear on the cell body of neuron A) Axon B) Cyton C) Dendrites D) Afferent nerves

Answer»

(C) Dendrites

167.

Name the part to be labelled in the ‘?’A) Axon B) Neuron C) Dendrite D) Cyton

Answer»

Answer is (A) Axon

168.

The structures that act as telephone wires in the body A) Veins B) Arteries C) Muscle fibres D) Neurons

Answer»

Answer is (D) Neurons

169.

The organ that integrates, processes the stimuli A) Heart B) Synapse C) Pituitary glandD) Brain

Answer»

Answer is (B) Synapse

170.

Name the given diagram.A) Algae B) Neuron C) Blood cell D) Mitochondria

Answer»

Answer is (B) Neuron

171.

Find the missing part in the diagram.A) Cyton B) Nucleus C) Axon D) Dendrites

Answer»

Answer is (B) Nucleus

172.

Give an example of coordination in your body where both hormonal and nervous controls function together.

Answer»

1. Several functions in our body are controlled by nerves, while many others are controlled by hormones. 

2. When we are afraid, the rate of heart beat increases, the breath rate will be faster, blood pressure increases, the hair on the body becomes errect and we get goose bumps. 

3. We might not observe our pupil dilation, skin becomes more sensitive. We come to normally only after we reach a safe spot. 

4. The various actions of the body are controlled by hormones and coordinated by nervous system. 

5. In these type of conditions nervous system and endocrine system work together to bring about control and coordination.

6. Another example for nervous and hormonal coordination. When the mother feeds the baby, the baby sucks the nipple for milk. This information is send to the brain by sensory nerve. Brain orders the pituitary gland to release the hormone oxytocin. Oxytocin helps in the ejection of milk from the mammary glands.

173.

Thyroxine : Metabolism:: Testosterone: ……… A) Sex organs in man B) Sex organs in woman C) Thyroid gland D) Fat gland

Answer»

A) Sex organs in man

174.

Doctor diagnosed a patient that he is suffering from the deficiency of a hormone. Doctor advised him to try to reduce the sugar percentage in his diet. Name the deficient hormone that the patient is suffering from. A) Thyroxine B) Insulin C) Somatotrophin D) Testosterone

Answer»

Answer is (B) Insulin

175.

Doctor advised Dileep that, he has to take insulin daily compulsorily. Which disease is he suffering from ? A) Epilepsy B) Diabetes Insipidus C) Diabetes Mellitus D) Langerhans

Answer»

C) Diabetes Mellitus

176.

Glucose is. converted into …… by insulin and stored in the liver A) Maltose B) Glycogen C) Sucrose D) Starch

Answer»

(B) Glycogen

177.

The mechanism which controls the action of hormones is ……………A) Feedback mechanism B) Controlling nervous system C) Effect of auxins D) Growth of organisms

Answer»

(A) Feedback mechanism

178.

The Somatotrophin which helps in growth of body is secreted by ……… A) Thyroid glandB) Adrenal gland C) Testes D) Pituitary gland

Answer»

D) Pituitary gland

179.

Imagine two roosters are fighting at your kitchen garden. What hormone might be secreted in their body during that stage ? A) Adrenalin B) Thyroxine C) Vasopressin D) Insulin

Answer»

(A) Adrenalin

180.

The-substance secreted by ductless glands is ………A) Blood B) Lymph C) Enzymes D) Hormones

Answer»

(D) Hormones

181.

The gland which acts like a bridge between nervous system and endocrine system is …………A) Adrenal gland B) Thyroid glandC) Testes D) Pituitary gland

Answer»

(D) Pituitary gland

182.

Endocrine gland present in head is (or) The master gland in our body is A) Pituitary B) Adrenal C) Islets of langerhans D) Thyroid

Answer»

(A) Pituitary

183.

How many geometrical isomers are possible for [Pt (Py) (NH3) (Br) (Cl) ]? (a) 3 (b) 4(c) 0 (d) 15

Answer»

geometrical isomers are possible for [ Pt (Py) (NH3) (Br) (Cl)]

184.

Which kind of isomerism is possible for a complex  [CO(NH3)4 Br2]Cl ? (a) geometrical and ionization (b) geometrical and optical (c) optical and ionization (d) geometrical only

Answer»

(a) geometrical and ionization

185.

Which one of the following pairs represents linkage isomers?(a) [Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [CuCl4] (b) [CO(NH3)5 (NO3)]SO4 and [CO(NH3)5 (ONO)] (c) [CO(NH3)4 (NCS)2]Cl and [CO(NH3)4 (SCN)2]Cl (d) both (b) and (c)

Answer»

(c) [CO(NH3)4 (NCS)2]Cl and [CO(NH3)4 (SCN)2]Cl 

186.

Fill in the blanks:The magnetic character of [Ni(CO)4] is ………

Answer»

The magnetic character of [Ni(CO)4] is Diamagnetic

187.

A complex in which the oxidation number of the metal is zero is …..(a) K4[Fe(CN)6](b) [Fe(CN)3(NH3)3] (c) [Fe(CO)5] (d) both (b) and (c)

Answer»

(c) [Fe(CO)5

188.

Explain ionisation isomerism with suitable example.

Answer»

1. Ionisation isomerism arises when an ionisable counter ion (simple ion) itself can act as a ligand. 

2. The exchange of such counter ions with one or more ligands in the coordinatioin entity will result in ionisation isomers. These isomers will give different ions in solution. 

3. For example, consider the coordination compound [Pt(en)2Cl2]Br2 . In this compound, both Br and CP have the ability to act as a ligand and the exchange of these two ions result in a different isomer [Pt (en)- , Br2]Cl,. In solution, the first compound Br- ions while the later gives CP ions and hence these compounds are called ionisation isomers.

189.

Formula of tris (ethane-1, 2-diamine) iron (II) phosphate ………(a) [Fe(CH3 – CH(NH2)2)3] (PO4)3 (b) [Fe(H2N – CH2 – CH2 – NH2)3] (PO4) (c) [Fe(H2N – CH2 – CH2 – NH2)2](PO4)2 (d) [Fe(H2N – CH2 – CH2 – NH2)3](PO4)2

Answer»

(d) [Fe(H2N – CH2 – CH2 – NH2)3](PO4)2

190.

Facmer isomerism is shown by ……… (a) [CO(en)3]3+(b) [CO(NH3)4(Cl)2]+ (c) [CO(NH3)3 (Cl)3] (d) [CO(NH3)5 Cl]SO4

Answer»

(c) [CO(NH3)3 (Cl)3

191.

Which of the following is paramagnetic in nature?(a) [Zn(NH3)4]2+(b) [CO(NH3)6]3+(c) [Ni(H2O)6]2+ (d) [Ni(CN)4]2-

Answer»

(c) [Ni(H2O)6]2+ 

192.

Fill in the blanks:The hybridisation and geometry of [Ni (CO)4] are ….. and …….. respectively

Answer»

SP3 , tetrahedral

193.

What is linkage isomerism? Explain with an example

Answer»

This type of isomers arises when an ambidentate ligand is bonded to the central metal atom/ ion through either of its two different donor atoms. For examples – [CO(NH3)5ONO]Cl2 (Pentaammine nitrito cobalt (III) chloride) – O – attached. (Red in colour). [CO(NH3)5NO2]Cl2 (Pentaammine nitro cobalt (III) chloride) – N – attached (Yellow-brown in colour).

194.

Fill in the blanks:The hybridisation and magnetic nature of [Ni(CN)4]2-are ……… and ….. respectively.

Answer»

dsp2 , diamagnetic

195.

Write briefly about the applications of coordination compounds in volumetric analysis.

Answer»

Hardness of water is due to the presence of Ca2+ and Mg2+ ions in water. EDTA forms stable complexes with Ca2+ and Mg2+ . So the total hardness of water can be estimated by simple volumetric titration of water with EDTA.

196.

Which one of the following complex is paramagnetic in nature? (a) [Ni (CN)4]4- (b) [Ni(CO)4] (c) [Fe (CN)6]3- (d) [Ag(CN)2]-

Answer»

(c) [Fe (CN)6]3- 

197.

Fill in the blanks:The geometry and hybridisation involvedin [CuCl2]- are ……… respectively.

Answer»

The geometry and hybridisation involvedin [CuCl2]- are  Linear, sp respectively.

198.

Fill in the blanks:The shape of [Fe (CO)5] is …………

Answer»

Trigonal bipyramidal

199.

Fill in the blanks:The shape of [Hgl3]- is and the type of hybridisation is .......

Answer»

Trigonal planar, sp2

200.

Fill in the blanks:The shape of [Ni(CO)4] is whereas the shape of [Ni (CN)4)]2+ is ………

Answer»

Tetrahedral, Square planar