Science Practice Quiz 185

Q1.The 'Extended Learning' section of the text suggests visiting a doctor to find out about which medical procedure?

A. Harmful effects of smoking B. Artificial respiration C. Measuring breathing rates D. Respiration in fish

Q2.According to the 'Did you know?' section, what is stated about oxygen for humans?

A. It is toxic for us B. It is essential for us C. It is dangerous to breathe pure oxygen for short periods D. It is only needed by organisms that do not use it

Q3.What are the essential substances that all organisms need for survival and must transport to various parts of their body?

A. Food, water, and oxygen B. Proteins, carbohydrates, and fats C. Vitamins, minerals, and enzymes D. Hormones, antibodies, and white blood cells

Q4.Which of the following components together form the circulatory system in animals, functioning to transport substances?

A. Heart and blood vessels B. Lungs and kidneys C. Brain and nerves D. Stomach and intestines

Q5.According to the provided text, which substance does blood transport from the small intestine to other parts of the body?

A. Oxygen B. Waste products C. Digested food D. Hormones

Q6.Blood is composed of a fluid in which different types of cells are suspended. What is this fluid called?

A. Lymph B. Plasma C. Serum D. Cytoplasm

Q7.Where does blood carry oxygen from, before transporting it to the cells of the body?

A. The heart B. The small intestine C. The lungs D. The kidneys

Q8.What is the primary function of haemoglobin in red blood cells?

A. To fight against germs B. To form blood clots C. To transport oxygen to all parts of the body D. To carry waste materials from cells

Q9.What makes blood appear red?

A. The presence of white blood cells B. The red pigment called haemoglobin C. The process of blood clotting D. The flow of blood in arteries

Q10.What is the main function of white blood cells (WBC) in the human body?

A. To transport oxygen B. To fight against germs C. To form blood clots D. To carry carbon dioxide

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Science Practice Quiz 185