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Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 9 - Control and Co-ordination [Latest edition]

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Biology 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Chapter 9: Control and Co-ordination

ExerciseVery Short Answer
Exercise [Pages 218 - 220]

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board Chapter 9 Control and Co-ordination Exercise [Pages 218 - 220]

Exercise | Q 1.01 | Page 218

Multiple choice question.

The nervous system of mammals uses both electrical and chemical means to send signals via neurons. Which part of the neuron receives impulse?

  • Axon

  • Dendron

  • Nodes of Ranvier

  • Neurilemma

Exercise | Q 1.02 | Page 218

Multiple choice question.

___________ is a neurotransmitter.

  • ADH

  • Acetyl CoA

  • Acetyl choline

  • Inositol

Exercise | Q 1.03 | Page 218

Multiple choice question.

The supporting cells that produce myelin sheath in the PNS are _________.

  • Oligodendrocytes

  • Satellite cells

  • Astrocytes

  • Schwann cells

Exercise | Q 1.04 | Page 218

Multiple choice question.

A collection of neuron cell bodies located outside the CNS is called _________.

  • Tract

  • Nucleus

  • Nerve

  • Ganglionl

Exercise | Q 1.05 | Page 218

Multiple choice question.

Receptors for protein hormones are located ________.

  • in cytoplasm

  • on cell surface

  • in nucleus

  • on Golgi complex

Exercise | Q 1.06 | Page 218

Multiple choice question.

If the parathyroid gland of man is removed, the specific result will be ___________.

  • onset of aging

  • disturbance of Ca++

  • onset of myxoedema

  • elevation of blood pressure

Exercise | Q 1.07 | Page 218

Multiple choice question.

Hormone thyroxine, adrenaline, and nonadrenaline are formed from _____________.

  • Glycine

  • Arginine

  • Ornithine

  • Tyrosine

Exercise | Q 1.08 | Page 218

Multiple choice question.

Pheromones are chemical messengers produced by animals and released outside the body. The odour of these substance affects _____________.

  • skin colour

  • excretion

  • digestion

  • behaviour

Exercise | Q 1.09 | Page 218

Multiple choice question.

Which one of the following is a set of discrete endocrine glands?

  • Salivary, thyroid, adrenal, ovary

  • Adrenal, testis, ovary, liver

  • Pituitary, thyroid, adrenal, thymus

  • pituitary, pancreas, adrenal, thymus

Exercise | Q 1.1 | Page 218

Multiple choice question.

After ovulation, the Graafian follicle changes into ___________.

  • Corpus luteum

  • Corpus albicans

  • Corpus spongiosum

  • Corpus callosum

Exercise | Q 1.11 | Page 218

Multiple choice question.

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

  • Parathyroid hormone - Diabetes insipidus

  • Leutinising hormone - Diabetes mellitus

  • Insulin - Hyperglycemia

  • Thyroxine - Tetany

Exercise | Q 1.12 | Page 218

Multiple choice question.

___________ is in direct contact of brain in human.

  • Cranium

  • Duramater

  • Arachnoid

  • Piamater

Exercise | Q 2.01 | Page 218

Very very short answer question.

What is the function of the red nucleus?

Exercise | Q 2.02 | Page 218

Very very short answer question.

What is the importance of Corpora quadrigemina?

Exercise | Q 2.03 | Page 218

Very very short answer question.

What does the cerebellum of the brain control?

Exercise | Q 2.04 | Page 218

Very very short answer question.

Name the three ossicles of the middle ear.

Exercise | Q 2.05 | Page 218

Very very short answer question.

Name the hormone which is an anti-abortion hormone.

Exercise | Q 2.06 | Page 218

Very very short answer question.

Name an organ that acts as a temporary endocrine gland.

Exercise | Q 2.07 | Page 219

Very very short answer question.

Name the type of hormones binding to DNA and alter gene expression.

Exercise | Q 2.08 | Page 219

Very very short answer question.

What is the cause of abnormal elongation of long bones of arms and legs and of the lower jaw?

Exercise | Q 2.09 | Page 219

Very very short answer question.

Name the hormone secreted by the pineal gland.

Exercise | Q 2.1 | Page 219

Very very short answer question.

Which endocrine gland plays an important, role in improving immunity?

Exercise | Q 3 | Page 219

Match the organism with the type of nervous system found in them.

1. Neurons a. Earthworm
2. Ladder-type b. Hydra
3. Ganglion c. Flatworm
4. Nerve net d. Human
Exercise | Q 4.1 | Page 219

Very short answer question.

Describe the endocrine role of islets of Langerhans.

Exercise | Q 4.2 | Page 219

Very short answer question.

Mention the function of testosterone?

Exercise | Q 4.3 | Page 219

Very short answer question.

Give symptoms of the disease caused by hyposecretion of ADH.

Exercise | Q 5.01 | Page 219

Short answer question

Rakesh got hurt on his head when he fell down from his motorbike. Which inner membranes must have protected his brain? What other roles do they have to play?

Exercise | Q 5.02 | Page 219

Short answer question

Give a reason - Injury to medulla oblongata may prove fatal.

Exercise | Q 5.03 | Page 219

Short answer question

Distinguish between the sympathetic and parasympathetic nervous system on the basis of the effect they have on: a. Heartbeat b. Urinary Bladder

Exercise | Q 5.04 | Page 219

Short answer question

While holding a teacup Mr. Kothari’s hands rattle. Which disorder he may be suffering from and what is the reason for this?

Exercise | Q 5.05 | Page 219

Short answer question

List the properties of the nerve fibres.

Exercise | Q 5.06 | Page 219

Short answer question

How does the tongue detect the sensation of taste?

Exercise | Q 5.07 | Page 219

Short answer question

State the site of production and function of Secretin, Gastrin, and Cholecystokinin.

Exercise | Q 5.08 | Page 219

Short answer question

An adult patient suffers from low heart rate, low metabolic rate, and low body temperature. He also lacks alertness, intelligence, and initiative. What can be this disease? What can be its cause and care?

Exercise | Q 5.09 | Page 219

Short answer question

Where is the pituitary gland located? Enlist the hormones secreted by the anterior pituitary.

Exercise | Q 5.1 | Page 219

Short answer question

Explain how the adrenal medulla and sympathetic nervous system function as a closely integrated system.

Exercise | Q 5.11 | Page 219

Short answer question

Name the secretion of alpha, beta, and delta cells of islets of langerhans. Explain their role.

Exercise | Q 5.12 | Page 219

Short answer question

Which are the 2 types of goitre? What are its causes?

Exercise | Q 5.13 | Page 219

Short answer question

Name the ovarian hormone and give their functions.

Exercise | Q 6 | Page 219

Answer the following.

Complete the table.

Location Cell Type Function
PNS ___________ Produce myelin sheath
PNS Satellite cells _____________
___________ Oligodendrocytes Form myelin sheath around central axon
CNS ___________ Phagocytose pathogens
CNS ___________ Form the epithelial lining of brain cavities and central canal.
Exercise | Q 7.01 | Page 219

Long answer question.

Explain the process of conduction of nerve impulses up to the development of action potential.

Exercise | Q 7.02 | Page 219

Long answer question

Draw the neat labelled diagram of the human ear.

Exercise | Q 7.02 | Page 219

Long answer question

Draw the neat labelled diagram of the Sectional view of the human eye.

Exercise | Q 7.02 | Page 219

Long answer question

Draw the neat labelled diagram of L. S. of the human brain.

Exercise | Q 7.02 | Page 219

Long answer question

Draw the neat labelled diagram of Multipolar Neuron.

Exercise | Q 7.03 | Page 220

Long answer question

Answer the question after observing the diagram given below.

What do the synaptic vesicles contain?

Exercise | Q 7.03 | Page 220

Long answer question.

Answer the question after observing the diagram given below.

What process is used to release the neurotransmitter?

Exercise | Q 7.03 | Page 220

Long answer question

Answer the question after observing the diagram given below.

What should be the reason for the next impulse to be conducted?

Exercise | Q 7.03 | Page 220

Long answer question

Answer the question after observing the diagram given below.

Will the impulse be carried by the postsynaptic membrane carried even if one pre-synaptic neuron is there?

Exercise | Q 7.03 | Page 220

Long answer question

Answer the question after observing the diagram given below.

Can you name the channel responsible for their transmission?

Exercise | Q 7.04 | Page 220

Long answer question

Explain the Reflex Pathway with the help of a neat labelled diagram.

Exercise | Q 7.05 | Page 220

Long answer question

Krishna was going to school and on the way, he saw a major bus accident. His heartbeat increased and hands and feet become cold. Name the part of the nervous system that had a role to play in this reaction.

Exercise | Q 7.06 | Page 220

Long answer question.

What will be the effect of thyroid gland atrophy on the human body?

Exercise | Q 7.07 | Page 220

Long answer question

Write the names of hormones and the glands secreting them for the regulation of the following functions.

a. Growth of thyroid and secretion of thyroxine.

b. Helps in relaxing pubic ligaments to facilitate the easy birth of young ones.

c. Stimulate intestinal glands to secrete intestinal juice.

d. Controls calcium level in the blood

e. Control tubular absorption of water in kidneys.

f. Urinary elimination of water.

g. Sodium and potassium ion metabolism.

h. Basal Metabolic rate.

i. Uterine contraction.

j. Heartbeat and blood pressure.

k. Secretion of growth hormone.

l. Maturation of Graafian follicle.

Exercise | Q 7.08 | Page 220

Long answer question

Explain the role of the hypothalamus and pituitary as a coordinated unit in maintaining homeostasis?

Exercise | Q 7.09 | Page 220

Long answer question

What is adenohypophysis? Name the hormones secreted by it?

Exercise | Q 7.1 | Page 220

Long answer question

Describe in brief, an account of disorders of the adrenal gland.

Exercise | Q 7.11 | Page 220

Long answer question

Explain the action of steroid hormones and proteinous hormones.

Exercise | Q 7.12 | Page 220

Long answer question

Describe in brief an account of disorders of the thyroid.

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Very Short Answer

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board Chapter 9 Control and Co-ordination Very Short Answer

Very Short Answer | Q 7

Name the hormone secreted by Pars intermedia in lower vertebrates.

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Chapter 9: Control and Co-ordination

ExerciseVery Short Answer
Biology 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 9 - Control and Co-ordination

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 9 (Control and Co-ordination) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Biology 12th Standard HSC for Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Biology 12th Standard HSC for Maharashtra State Board chapter 9 Control and Co-ordination are Nervous System in Hydra, Nervous System in Planaria (Flatworm), Neural Tissue, Synapse, Transmission of Nerve Impulse, Human Nervous System, Human Eye, Human Ear, Disorders of Nervous System, Endocrine System, The Hypothalamus, Pituitary Gland Or Hypophysis Gland, The Pineal Gland, Thyroid Gland, Parathyroid Gland, Thymus Gland, Adrenal Gland/Suprarenal Gland, Pancreas, Gonads, Diffuse Endocrine Glands.

Using Balbharati 12th Board Exam solutions Control and Co-ordination exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 12th Board Exam prefer Balbharati Textbook Solutions to score more in exam.

Get the free view of chapter 9 Control and Co-ordination 12th Board Exam extra questions for Biology 12th Standard HSC for Maharashtra State Board and can use Shaalaa.com to keep it handy for your exam preparation

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