10th Science Half Portion Test

Don't stop at just one mock test. Our Class 10 Science Half Portion Test Question Paper 2 offers an excellent alternative set of questions to thoroughly evaluate your mid-syllabus preparation. Time yourself for a realistic exam experience, practice structuring your answers cleanly, and ensure that every major concept from physics, chemistry, and biology is completely locked in before your actual test.

HALF PORTION TEST - 2024-2025

SCIENCE - UNIT TEST - 1 [LN - 12, 13, 14, 15, 16, 17]

Unit - 12 PLANT ANATOMY AND PLANT PHYSIOLOGY

2 mark questions

1. What is the common step in aerobic and anaerobic pathway?

2. Write a short note on mesophyll.

3. Draw and label the structure of oxysomes.

4. Name the three basic tissues system in flowering plants.

5. What is photosynthesis and where in a cell does it occur?

6. What is respiratory quotient?

7. Write the reaction for photosynthesis?

8. Draw the structure of Mitochondria and label the parts

9. Draw the structure of Chloroplast and label the parts

4 and 7 marks questions:

1. Differentiate Monocot root and Dicot root

2. Differentiate Aerobic and Anaerobic respiration

3. Describe and name three stages of cellular respiration that aerobic organisms use to obtain energy from glucose.

4. How does the light dependent reaction differ from the light independent reaction? What are the end product and reactants

Unit - 13 STRUCTURAL ORGANISATION OF ANIMALS

2 mark questions

1. Give the common name of the Hirudinaria granulosa.

2. How does leech respire?

3. Write the dental formula of rabbit.

4. How many pairs of testes are present in leech?

5. How is diastema formed in rabbit?

6. What organs are attached to the two bronchi?

7. Which organ acts as suction pump in leech?

8. What does CNS stand for?

9. Why is the teeth of rabbit called heterodont?

10. How does leech suck blood from the host?

11. Why are the rings of cartilages found in trachea of rabbit?

12. List out the parasitic adaptations in leech.

4 and 7 marks questions:

1. How does locomotion take place in leech?

2. Explain the male reproductive system of rabbit with a labelled diagram.

Unit - 14 TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS

2 mark questions

1. Name two layered protective covering of human heart.

2. What is the shape of RBC in human blood?

3. Why is the colour of the blood red?

4. Which kind of cells are found in the lymph.

5. Name the heart valve associated with the major arteries leaving the ventricles.

6. Mention the artery which supplies blood to the heart muscle.

7. What is cohesion?

8. What are heart sounds? How are they produced?

9. What is the importance of valves in the heart?

10. Who discovered Rh factor? Why was it named so?

11. How are arteries and veins structurally different from one another?

12. Why is the Sinoatrial node called the pacemaker of heart?

13. The complete events of cardiac cycle last for 0.8 sec. What is the timing for each event?

4 and 7 marks questions:

1. What is transpiration? Give the importance of transpiration.

2. Differentiate between systole and diastole. Explain the conduction of heart beat.

3. Enumerate the functions of blood.

Unit - 15 NERVOUS SYSTEM

2 mark questions

1. Name the parts of the hind brain.

2. What are the structures involved in the protection of brain?

3. Define reflex arc.

4. Draw the structure of Brain and label the parts

4 and 7 marks questions:

1. Differentiate voluntary and involuntary actions.

2. Differentiate medullated and non-medullated nerve fibre.

3. With a neat labelled diagram explain the structure of a neuron.

4. Describe the structure of spinal cord.

5. Classify neurons based on its structure.

Unit - 16 PLANT AND ANIMAL HORMONES

2 mark questions

1. Which hormone promotes the production of male flowers in Cucurbits?

2. Write the name of a synthetic auxin.

3. Which hormone induces parthenocarpy in tomatoes?

4. What is the hormone responsible for the secretion of milk in female after child birth?

5. Name the hormones which regulates water and mineral metabolism in man.

6. Which hormone is secreted during emergency situation in man?

7. Which gland secretes digestive enzymes and hormones?

8. Name the endocrine glands associated with kidneys.

9. What are synthetic auxins? Give examples.

10. What is bolting? How can it be induced artificially?

11. What are chemical messengers?

12. Write the differences between endocrine and exocrine gland.

13. Why are thyroid hormones referred as personality hormone?

14. Write the physiological effects of gibberellins.

15. Draw the structure of Thyroid gland and label the parts

16. Draw the structure of Parathyroid gland and label the parts

17. Draw the structure of Pancreas and label the parts

18. Draw the structure of Adrenal gland and label the parts

19. Draw the structure of Thymus gland and label the parts

20. Name the gaseous plant hormone. Describe its three different actions in plants.

Unit - 17 REPRODUCTION IN PLANTS AND ANIMALS

2 mark questions

1. When is World Menstrual Hygiene Day observed?

2. Define triple fusion.

3. Write the characteristics of insect pollinated flowers.

4. Name the secondary sex organs in male.

5. What is colostrum? How is milk production hormonally regulated?

6. Identify the parts A, B, C and D

7. Draw the structure of Pollen grain and label the parts

8. Draw the structure of gynoecium and label the parts

9. Draw the structure of Sperm and label the parts

10. Draw the structure of anther and label the parts.

4 and 7 marks questions:

1. Write the events involved in the sexual reproduction of a flowering plant:
a. Discuss the first event and write the types.
b. Mention the advantages and the disadvantages of that event.

2. With a neat labelled diagram describe the parts of a typical angiospermic ovule.

3. What are the phases of menstrual cycle? Indicate the changes in the ovary and uterus.