AP SSC 2025: Key Biology Model Questions on Control & Coordination for 10th Class Exams

Prepare effectively for the AP 10th Class SSC Board Exams 2025 with these carefully curated model questions on "Control & Coordination, as given by AP SCERT." This includes 8-mark, 4-mark, and 2-mark questions, focusing on critical topics like neuron structure, plant hormones, tropic movements, reflex actions, and hormonal coordination. These questions will help students grasp core concepts and perform confidently in the biology section.

Model 8 Marks Questions

1. How is the brain protected? Explain its structure briefly.
2. Describe the structure of a neuron and explain its function. How is its structure suitable for the transmission of information?
3. How do you demonstrate phototropism in plants? Describe the experimental procedure.
4. Write briefly about the different hormones in plants.

Important 4 Marks Questions

1. Compare two types of movements shown in plants.

2. How are involuntary actions different from reflex actions?

3. What are the differences between a reflex action and walking?

4. Study the given information and answer the following questions:

   Tropic Movements | Stimulus

   (i) What is the name of the movement in plants towards light?
   (ii) Which plant part shows positive phototropic activity?
   (A) Stem (B) Root (C) Leaves
   (iii) Tendrils grow towards the support. What type of tropism is this?
   (iv) Roots grow towards water resources. What type of tropism is this?

   • Phototropism → Light
   • Thigmotropism → Touch
   • Chemotropism → Chemical
   • Hydrotropism → Water
   • Geotropism → Gravitation

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AP & TS 10^th Class - 2025 Model Papers, Blue Print and Chapter-wise Imp. Questions...

Andhra Pradesh

• English Medium
• Telugu Medium

Telangana

• English Medium
• Telugu Medium

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Read the information and answer the questions:

S.No	Hormone	Endocrine Gland	Functions
1	Growth Hormone	Pituitary Gland	Stimulates growth in all organs.
2	Thyroxine	Thyroid Gland	Regulates metabolism for body growth.
3	Insulin	Pancreas	Regulates blood sugar levels.
4	Testosterone	Testes	Development of male sex organs, spermatogenesis, sexual characteristics.
5	Progesterone, Estrogen	Ovaries	Development of female sex organs, ovulation, menstrual cycle, etc.
6	Adrenaline	Adrenal Gland	Increases blood sugar levels, heartbeat rate, and respiration rate.
7	Releasing Hormones	Hypothalamus	Stimulates the Pituitary Gland to release its hormones.

(i) Name the gland that regulates blood sugar levels.
(ii) Which endocrine gland promotes blood sugar levels?
(iii) Name the male sex hormone.
(iv) What is the role of the hypothalamus in hormonal coordination?

6. Observe the neuron diagram and identify the parts based on the description:
   (i) The part that acquires information.
   (ii) The part through which information travels as an electrical impulse.
   (iii) The part where the impulse is converted into a chemical signal for transmission.
   (iv) The part that connects information-receiving and sending areas.

7. Diabetes is a chronic disease. What measures do you suggest controlling blood sugar levels?

8. What precautions do you recommend preventing goiter disease?

Important 2 Marks Questions

1. Expand CNS and PNS.

2. Give one example each of growth-promoting and growth-inhibiting phytohormones.

3. Define a reflex arc and give an example.

4. What is the importance of iodine in food? What are the consequences of iodine deficiency?

5. What is the role of the brain in reflex actions?

6. Compare coordination in plants and animals.

7. What happens if the cerebrum is damaged? Which important functions will be lost?

8. How does chemical coordination occur in animals?

9. What would happen if reflex actions did not occur in humans?

10. What questions would you ask an endocrinologist about hormones?

11. What questions would you ask about coordination in animals?

12. Why are some diabetic patients treated with insulin injections?

13. How does our body respond when adrenaline is released into the blood?

14. Involuntary actions like salivation, blood pressure, and vomiting are controlled by the medulla of the hindbrain.
    (i) What are involuntary actions?
    (ii) Which part of the brain controls involuntary actions?

15. The directional movement of a seedling is caused by growth. If its growth is prevented, it will not show any movement. Plants show two types of movements: one dependent on growth and the other independent of growth.
    (i) What are the movements dependent on growth called?
    (ii) What are the movements independent of growth called?

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Published date : 25 Jan 2025 11:23AM