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Punjab (PTB) · Quarter book test · Free

10th Class Biology 1st Quarter Book Paper

40 marks · 1 hour · 28 questions. Covers: CHAP 1: HUMAN DIGESTIVE SYSTEM, CHAP 2: HUMAN RESPIRATORY SYSTEM, CHAP 3: HUMAN BLOOD CIRCULATORY SYSTEM.

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10th Class Biology 1st Quarter Book Paper

10th Class · Biology · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 40Time: 1 hour

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. Nicotine and other chemicals in vapes increase which cardiovascular factors?

    1. Heart rate and blood pressure

    2. Blood volume only

    3. Red blood cells

    4. Oxygen levels

  2. Regular handwashing and avoiding contaminated water help prevent:

    1. Diarrhoea

    2. Constipation

    3. Diabetes

    4. Genetic disorders

  3. Capillaries are the smallest blood vessels, and their walls are made of only a single layer of cells called ...... 

    1. Connective tissue

    2. Smooth muscle

    3. Endothelium

    4. Pericardium

  4. What type of cartilage protects the walls of the trachea from collapsing?

    1. Plate-like cartilages

    2. C-shaped cartilages

    3. O-shaped cartilages

    4. Linear cartilages

  5. Blood vomiting can occur in severe cases of which disorder?

    1. Constipation

    2. Mild diarrhoea

    3. Severe ulcers

    4. Food allergy

  6. Coronary Heart Disease (CHD) is the narrowing or blockage of:

    1. Renal arteries

    2. Coronary arteries

    3. Pulmonary arteries

    4. Hepatic portal vein

  7. In Pakistan, lung cancer accounts for about what percentage of all new cancer cases annually?

    1. 12.4%

    2. 5.1%

    3. 1.5%

    4. 22%

  8. "Taking in food and drinks through the mouth" defines which step?

    1. Assimilation

    2. Absorption

    3. Ingestion

    4. Digestion

  9. Red blood cells are also scientifically known as ......:

    1. Leukocytes

    2. Erythrocytes

    3. Platelets

    4. Plasma cells

  10. What happens to the ribcage during exhalation?

    1. Upward and outward

    2. Upward and inward

    3. Downward and outward

    4. Inwards and downwards

  11. Pancreatic amylase is responsible for digesting:

    1. Proteins

    2. Carbohydrates

    3. Fats

    4. Vitamins

  12. Which of the following is an emergency treatment used to physically ope blocked coronary arteries?

    1. Dialysis

    2. Vaccination

    3. Angioplasty

    4. Asthma

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

  1. Why does oxygenated and deoxygenated blood not mix in the human heart?

  2. Write the disadvantages of vaping.

  3. Where is the liver found in the human body?

  4. Explain how the "lubb" and "dubb" sounds of the heart are produced.

  5. What is the role of intercostal muscles during exhalation?

  6. Write a brief note on the structure of villi.

  7. Write a short note on erythrocytes.

  8. What percentage of all new cancer cases globally does lung cancer account for?

  9. Write down the weight and location of the human liver.

  10. Which layers are present in veins?

  11. Which vessel brings deoxygenated blood from the heart to the lungs?

  12. What is the function of the mucus?

Q3. Long questions (Attempt any 3 of 4 · 3 × 4 = 12)

  1. What is meant by platelets? Describe their functions.

  2. Why is it important to maintain a healthy balance of gut bacteria?

  3. What are the possible causes of lung cancer? Explain the harmful effects of smoking apart from lung cancer.

  4. Compare the structure and function of an artery, a vein and a capillary.