Gaseous Exchange With Answers

Gaseous Exchange

Sr. # Questions Answers Choice
1 What is the primary characteristic of asthma? Permanent damage to alveolar walls Inflammation of the pharynx Spasms of the bronchi and bronchioles, narrowing the airways Fluid accumulation in the pleural cavity
2 A condition where the walls of the alveoli are damaged, leading to an enlargement of air spaces and a reduction in the surface area for gas exchange, is called: Asthma Pneumonia Bronchitis Emphysema
3 Which respiratory disorder is characterized by the inflammation of the bronchial tubes, leading to excessive mucus production and persistent coughing? Emphysema Asthma Bronchitis Pneumonia
4 Which of the following is the main nitrogenous waste product excreted by the human urinary system? Carbon dioxide Bile Urea Lactic acid
5 The process by which essential substances like glucose, amino acids, and some salts are reabsorbed back into the blood from the renal tubule is known as: Glomerular filtration Tubular reabsorption Tubular secretion Micturition
6 Which of the following correctly represents the path of urine out of the human body? Kidney → Urethra → Ureter → Urinary Bladder Kidney → Urinary Bladder → Ureter → Urethra Kidney → Ureter → Urinary Bladder → Urethra Kidney → Urinary Bladder → Urethra → Ureter
7 The basic structural and functional unit of the kidney responsible for filtering blood and forming urine is called the: Neuron Alveolus Nephron Hepatocyte
8 What is the primary function of the human kidneys? Pumping blood throughout the body Filtering waste products from the blood and producing urine Producing digestive enzymes for the small intestine Regulating body temperature through sweating
9 Which gas is a waste product of cellular respiration and is expelled from the human body during exhalation? Oxygen Nitrogen Carbon dioxide Methane
10 During inhalation, what happens to the intercostal muscles and the diaphragm? Intercostal muscles relax, diaphragm contracts Intercostal muscles contract, diaphragm relaxes Both intercostal muscles and diaphragm contract Both intercostal muscles and diaphragm relax
11 What substance in red blood cells is primarily responsible for transporting oxygen in the blood? Plasma Hemoglobin Platelets White blood cells
12 What is the primary function of the diaphragm in human respiration? To filter incoming air To warm and moisten air To contract and relax, changing lung volume To prevent food from entering the windpipe
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