11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
Published on: 12/09/2019
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.
Which of the following statement concerning the somatic division of the peripheral neural system is incorrect?
Its pathways innervate skeletal muscles
Its pathways are usually voluntary
Some of its pathways are referred to as reflex arcs
Its pathways always involve four neurons
2.
Assertion(A): The imbalance in concentration of Na+, K+ and proteins generates action potential.
Reason(R): To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
Assertion is true, but Reason is false.
Both Assertion and Reason are false
3.
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++
4.
5.
Name the first five cranial nerves, their nature and their functions.
6.
Label the parts of the neuron.
7.
Sam's optometrist tells him that his intraocular pressure is high. What is this condition called and which fluid does it involve?
8.
9.
10.
What is ANS? Explain the components of ANS.
11.
Describe the structures of olfactory receptors.
1.
(d)
Its pathways always involve four neurons
2.
(a)
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
3.
(a)
P = Acetylcholine, Q = Ca++
4.
(c)
5.
| 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 |
6.
A- Nucleus with nucleolus'
B- Myelin sheath
C- Dendrites
D- Nucleus
E- Schwann cell
F- Node of Ranvier
7.
1. Aqueous humor supplies nutrients and oxygen to the lens, cornea and some retinal cells.
2. The aqueous humor is produced and drained at the same rate, maintaining a constant intra ocular pressure of about 16 mmHg.
3. Any block in the canal of schlemm increases the intra ocular pressure of aqueous humor and leads to 'Glaucoma' where the optic nerve and the retina are compressed due to pressure.
8.
9.
10.
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.
11.
(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
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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
