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Consider the following statements about respiration:
1. The first step of respiration, the breaking of glucose into pyruvate, takes place in the cytoplasm.
2. Aerobic respiration takes place in the mitochondria and produces carbon dioxide and water.
Which of the statements given above is/are correct?
Which one of the following pairs is correctly matched?
What is the function of the rings of cartilage present in the throat?
Which of the following correctly describes what happens when we breathe in?
Which one of the following pairs is NOT correctly matched?
Match List-I with List-II:
| List-I (Structure) | List-II (Feature) |
|---|---|
| A. Arteries | 1. Walls only one cell thick |
| B. Veins | 2. Prevent backflow of blood |
| C. Capillaries | 3. Thick, elastic walls |
| D. Heart valves | 4. Thin walls with valves |
Select the correct answer using the codes given below.
Arrange the following events in the path of oxygen in the human body:
1. The left ventricle pumps blood to the whole body.
2. Oxygen enters the blood in the alveoli.
3. Oxygen-rich blood enters the left atrium.
Select the correct order.
Find the odd one out on the basis of the type of heart and circulation:
Which fluid carries digested fat from the intestine and returns extra fluid from the tissues to the blood?
Consider the following statements about blood pressure:
1. It is the pressure that blood exerts on the wall of a blood vessel.
2. The normal diastolic pressure is about 120 mm of Hg.
3. High blood pressure is called hypertension.
Which of the statements given above is/are correct?
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