11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 01/10/2019
Bio - Zoology - Neural Control and Coordination
Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Foramen of Munro corresponds to _____________ Ventricle.
First
Third
Second
Fourth
2.
________ contains vital centres that control cardiovascular reflexes and respiration.
Cerebrum
Pons
Medulla
Cerebellum
3.
Choose the wrong statement with regard to a dendron.
Dendrons are branched.
Dendron gives rise to Axon.
Dendron is associated with myelin sheath
Dendron arises from cell body.
4.
All of the following are associated with the myelin sheath except.
Faster conduction of nerve impulses
Nodes of Ranvier forming gaps along the axon
Increased energy output for nerve impulse conduction
Saltatory conduction of action potential
5.
The abundant intracellular cation is _____.
H+
K+
Na+
Ca++
6.
7.
During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.
P = Acetylcholine, Q = Ca++
P = Acetylcholine, Q =Na+
P = GABA, Q = Na+
P = Cholinesterase, Q = Ca++
8.
9.
Name the chambers of the cochlea.
10.
Differentiate Rods and cones.
11.
Name the first five cranial nerves, their nature and their functions.
12.
Label the parts of the neuron.
13.
What is 'accommodation' of the human eye
14.
What is cauda equina? horse tail?
15.
What is a Synapse?
16.
17.
The action potential occurs in response to a threshold stimulus; but not at subthreshold stimuli. What is the name of the principle involved?
18.
19.
What is ANS? Explain the components of ANS.
20.
Describe the structures of olfactory receptors.
1.
(b)
Third
2.
(c)
Medulla
3.
(c)
Dendron is associated with myelin sheath
4.
(c)
Increased energy output for nerve impulse conduction
5.
(b)
K+
6.
(d)
7.
(a)
P = Acetylcholine, Q = Ca++
8.
(c)
9.
1. Scala vestibuli - Filled with perilymph.
2. Scala tympani - Filled with perilymph.
3. Scala media - Filled with endolymph.
10.
| Rod cells | Cone cells |
| Rods are responsible for vision in dim light. | The cones are responsible for colour vision and works best in the bright light |
| The pigment present in the rods is rhodopsin, formed of a protein scotopsin and retinal (an aldehyde of vitamin A). |
The pigment present in the cones is photopsin, formed of opsin protein and retinal. |
| There are about 120 million rod cells. | There may be 6-7 millions of cone cells |
| Rods are predominant in the extra fovea region | Cones are concentrated in the fovea region. |
11.
| Cranial nerves | Nature of nerve | Function |
| Olfactory nerve | Sensory | Sense of smell |
| Optic nerves | Sensory | Sense of sight |
| Oculomotor nerves | Motor | Movement of the eye |
| Trochlear nerve | Motor | Rotation of the eye ball |
| Trigeminal nerve | Sensory and motor (mixed) | Functioning of facial parts |
12.
A- Nucleus with nucleolus'
B- Myelin sheath
C- Dendrites
D- Nucleus
E- Schwann cell
F- Node of Ranvier
13.
The ability of the eyes to focus objects at varying distances is called accommodation which is achieved by suspensory ligament, ciliary muscle and ciliary body.
14.
The thick bundle of elongated nerve roots within the lower vertebral canal is called the cauda equina, It looks looks like horse tail.
15.
The junction between two neurons is called a synapse through which a nerve impulse is transmitted.
16.
17.
The action potential occurs in response to a threshold stimulus but does not occur at sub threshold stimuli. This is called all or none principle.
18.
19.
1. The ANS autonomic neural system is auto functioning and self-governed.
2. It is a part of the peripheral neural system that innervates smooth muscles, glands and cardiac muscle. This system controls and coordinates the involuntary activities of various organs.
3. ANS controlling centre is in the hypothalamus.
20.
(i) The structure of chemoreceptors
(ii) The receptors for taste and smell are the chemoreceptors
(iii) The smell receptors are excited by air borne chemicals that dissolve in fluids.
(iv) The yellow coloured patches of olfactory epithelium form the olfactory organs that are located on the roof of the nasal cavity.
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
