Question Pool Chemical Messages for Homeostasis

Chemical Messages for Homeostasis - SAMAGRA Question Pool & Answers | Class 10 English Medium

Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 10 English Medium Biology Chemical Messages for Homeostasis

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Qn 3.

Analyze the information given in the box and answer questions. 

Thymas, Pituitary, Pinial, Hypothalamas

1. Identify the gland which is not present in the brain.

2. Which of these gland is a part of both nervous system and endocrine system?

 



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Qn 4.

X is a hormone and Y is a gland.Observe the table and answer the questions.

X Slows down the action of defense cells.
Y Control the activities and maturation of T lymphocytes.

1. Identify the Hormone indicated as X.

2. Which endocrine gland does 'X' indicate?

3. Name the hormone which stimulate the gland that secrete "X"?

 



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Qn 5.

Maintenance of blood calcium level is illustrated below. Analyse it
and answer the  questions.

Hints - A,B Glands

             X,Y Hormones

1. Write the normal blood Calcium level.

2. Identify the glands indicated as A and B.

3. Name the hormones mentioned as X and Y.

4. Write any one function of X in the regulation of blood calcium level.

 



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Qn 6.

The normal level of two components of human blood given in the table. Analyze them and answer the questions.

A 9-11 mg/100ml
B 70-110 mg/100ml

1. Identify A and B.

2. Name the hormones which maintains the normal level of A.

3. Write the disease caused by the excess level of B?

 



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Qn 7.

Tabulate the diseases given in the box

Alzheimer's, Acromegaly, Epilepsy, Diabetes

 

Disorder of nervous system

Disorder of endocrine system

 

 

 

  • Answer)

    Disorder of nervous

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    Qn 8.

    Tabulate the hormones given the box by giving the name of the their glands as the heading.

    Vasopressin, Thyroxine, Releasing hormone,  Prolactin, Calcitonin, Somatotropin

     

    • Answer)
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      Qn 9.

      Analyse the table and give proper heading to columns A and B

      A

      B

      Musk

      Ethylene

      Bombycol

      Gibberellin

       

      • Answer)
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        Qn 10.

        Classify the given terms based on the similarities and give proper heading.

        Ethylene, Civeton, Gibberellin, Bombycol

         

        • Answer)
          Pheromones Plant
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          Qn 11.

          Which among the following is/are not produced by pituitary gland?

          Prolactin, Oxytocin, Somatotropin, Gonado tropic hormone

           

           



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          Qn 12.

          Complete the table by analysing the Hints.

          X - production of milk.
          Y – facilitates lactation.

            Name

          Gland

          X    
          Y    

           

           

          • Answer)
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            Qn 13.

            Write answers to the questions using the data given in box.

            Adrenal gland

            Cortex - aldosterone

            Medulla - Cortisole

            a) Which is the correct pair among those indicated in the box?

            b) Which is the site of action of the hormone that controls salt – water balance ?6060

             



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            Qn 14.

            Find out the correct statement related to hormones among the following.

            a) Hormones act only on target cells.

            b) Hormones are the secretions of endocrine glands

            c) Hormones reach the target cells through special tubes

            d) Hormones are transported through the blood.

             

            1. a, b, c are correct

            2. a, c, d are correct

            3. b, c, d are correct

            4. a, b, d are correct

             



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            Qn 15.

            Identify the odd one and write the common feature of others

            TSH, ACTH, GTH, ADH

             



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            Qn 16.

            Which among the following hormones has no role in the maintenance of blood glucose.

            Cortisol, Glucagone, Aldosterone, Insulin

             



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            Qn 17.

            Write the relation between the words among the word pairs by analysing them.

            a) Thyroxine – Cretinism

            b) Somatotropin – Dwarfism

             



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            Qn 18.

            Identify the odd one and write the common feature of others

            Melatonin, Progesterone, Testosterone, Oestrogen

             



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            Qn 19.

            Name the hormone indicated as “A” in the illustration.

             



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            Qn 20.

            Observe the illustration.

            a) Which hormone is wrongly included in the illustration?

            b) Which gland produces the wrongly included hormone? What is its function?

             



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            Qn 21.

            Complete the illustration of the working of vasopressin using the data given in the box

            Increases, Decreases, Normal level, No change

             



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            Qn 22.

            Answer the questions by analysing the given situations

            A. Production of vasopressin decreases.

            B. Production of insulin decreases.

            C. Production of calcitonin decreases.

            a) Which disease develops during the situation A?

            b) Which disease develops during the situation B?

            c) Which are the blood factors that vary during the conditions A, B and C

             



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            Qn 23.

            Which among the following is not a function of thyroid gland?

            a) Raises the rate of metabolism.

            b) Helps to reabsorb water in kidney

            c) Regulates growth in children.

            d) Increases energy production.

             



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            Qn 24.

            Analyse the given statements and explain how the functioning of endocrine glands are controlled?

            a) Hypothalamus controls pituitary gland

            b) Pituitary gland controls other endocrine glands

             



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            Qn 25.

            Analyse the following statements and give reasons.

            a) Sleeps during night and wake up in the morning

            b) Bees and Termites live in colonies.

             



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            Qn 26.

            Prepare a flow chart on the action of hormones on target cells by rearranging the data.

            • Enzymes become functionally active within the cell

            • Endocrine gland produces hormones

            • Changes occur in cellular activities.

            • Hormone – receptor complex is formed

            • Hormone reaches the target cells through blood

            • Hormone molecule binds with the receptor

             

            • Answer)


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            Qn 27.

            Certain hormones produced by Adrenal gland help to fight or flight from an emergency situation

            a) Which are the hormones depicted in the statement?

            b) How these hormones are connected to autonomous nervous system?

             



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            Qn 28.

            “X” is a hormone. This hormone maintains the rhyth of daily activities.

            1) Which is the hormone indicated by X?

            2) Which gland produces this hormone?

            3) What is the difference in the production of this hormone during night and day?

             



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            Qn 29.

            A. Nervous system controls the physiological activities

            B. Along with nervous system, Endocrine system also controls the physiological activities

            Write your response by analysing the opinions of A and B. Justify your response.



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            Qn 30.

            A – Pituitary gland controls the production of hormone from endocrine glands

            B - Hypothalamus controls the production of hormone from endocrine glands

            Write your response by analysing the opinions of A and B. Justify your response.

             



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            Qn 31.

            Write two concepts based on the following subtopics for preparing a seminar on artificial plant hormones

            1) Possibilities

            2) Concerns

             



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            Qn 32.

            Find the odd and write the peculiarities of others.

            Auxin, Ethylene, Cytokinin, Gibberellin

             



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            Qn 33.

            Honey bees and termites are living in colonies.

            1) Which chemical helps them to live in colonies?

            2) Write other two functions of this chemical.

            3) How this chemical can be used in the agricultural sector?

             



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            Qn 34.

            Write answer to the questions by analysing the illustration and data given in the box

            Kidney, Bone, Uterus

            1) Select name of the organs indicated as A and B in illustration from the box

            2) How Hypothalamus and pituitary are related to oxytocin and vasopressin?

            3) Write the action of oxytocin in A.

             



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            Qn 35.

            Functions of Plant hormones  are given in the box. Analyse the box given below and complete the table suitably.

            Fruit formation, Dropping of ripened leaves and fruits, Cell division,
            Break down of stored food, Growth of terminal buds.