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Questions in biology

[Terjawab] The primary job of the heart is to: A. pump blood. B. oxygenate the blood. C. remove wastes from the blood. D. store blood.

[Terjawab] Why is soil important to plants? A. It provides them with nutrients. B. It provides them with water. C. It provides them with a medium for growth. D. All of the above

[Terjawab] The human digestive system consists of a group of organs that break the food, absorb and eject waste substances from the body. Digestion begins in the ____ where salivary glands release ____ to break the food. Chewed food then travels to the stomach through ____. Different acids are produced in the stomach to help break down food. These acids are dangerous, as they can burn the stomach. To prevent this, the stomach is coated in a slimy substance called ____. From the stomach, liquid food travels to the ____ where it is absorbed through "tentacles" called ____. The additional organs like pancreas and ____ release ____ to help absorb nutrients in the small intestines. Nutrients absorbed from the small intestines are sent to the liver where it ____ toxins and turns it into waste. The leftover liquid food is sent to the ____. It is the last chance for the body to orb ____ and nutrients before it is stored in the ____ as faeces.

[Terjawab] What is water's role in a membrane protein? Water keeps the membrane protein hydrated. Water lubricates the membranes so nutrients can move easier. Water exists on both sides of this membrane.

[Terjawab] Name the following. 1. The process of taking in air? 2. The process of giving out air? 3. A strong muscle below the lungs? 4. An organ which pumps blood to every cell? 5. An instrument used by doctors to listen to our heartbeat?

[Terjawab] V. Match the following: 1. Creeper 2. Non-flowering plant 3. Water lily 4. Cricket bats 5. Tulip 6. Shrub 7. Grapevine 8. Herb 9. Sugarcane 10. Desert Options: a. Fern b. Climber c. Willow d. Bushes e. Mint f. Cacti g. Terrestrial h. Flowering plant i. Aquatic j. Pumpkin VI. Give 2 examples for each: 1. Terrestrial plants: , 2. Climbers: , 3. Shrubs: , 4. Aquatic plants: , 5. Creepers: , 6. Trees: , 7. Flowering plants: ,

[Terjawab] What process can result from natural selection? A. Adaptations to occur via mutation B. Traits to be passed from parents to offspring C. Random fertilization D. Evolution

[Terjawab] 9. What is peristalsis? A. Rhythmic contraction of digestive muscles B. Movement of the tongue C. Breakdown of starch D. Production of bile 10. Which part temporarily stores food and mixes it with digestive juices? A. Liver B. Colon C. Stomach D. Small intestine 11. Which of the following is NOT a digestive gland? A. Liver B. Pancreas C. Salivary gland D. Small intestine 12. What does the esophagus do? A. Stores waste B. Absorbs nutrients C. Chemically digests food D. Connects mouth to stomach 13. A function of the digestive system is: A. Pumping blood B. Producing oxygen C. Breaking down food D. Removing carbon dioxide 14. Which enzyme digests protein in the stomach? A. Lipase B. Pepsin C. Amylase D. Lactase 15. What should be avoided to prevent ulcers? A. Stress and spicy foods B. Proper hygiene C. Fiber-rich diet D. Water 16. Which part of the digestive system absorbs water? A. Liver B. Stomach C. Gall bladder D. Large intestine 17. What does the gallbladder do? A. Store bile B. Produce insulin C. Absorb nutrients D. Digest carbohydrates 18. Which food group helps regulate bowel movement? A. Fat B. Fiber C. Sugar D. Protein 19. Which disease is linked to contaminated food and poor hygiene? A. Ulcer B. Obesity C. Constipation D. Food poisoning 20. What is the role of enzymes in digestion? A. Store food B. Protect organs C. Absorb nutrients D. Speed up digestion C. Modified True or False: Directions: Write TRUE if the statement is correct. If FALSE, change the underlined word to correct the sentence. Write your answer in the space provided (15 items) 1. The large intestine is the main site of nutrient absorption. 2. Mechanical digestion uses enzymes to break down food. 3. Peristalsis pushes food through the digestive tract. 4. The liver stores bile until it is needed in the small intestine. 5. Pepsin breaks down carbohydrates in the mouth. 6. The pancreas secretes enzymes and hormones. 7. The esophagus absorbs nutrients. 8. The stomach secretes hydrochloric acid and enzymes. 9. Villi are found in the large intestine. 10. Bile is produced by the pancreas. 11. Constipation is caused by too much water in the stool. 12. Salivary glands begin the chemical digestion of starch. 13. Lactase breaks down fats into smaller molecules. 14. Heartburn is caused by acid reflux into the esophagus. 15. Proper handwashing can help prevent digestive diseases.

[Terjawab] 9. Why is it fair to say that genetically modified crops are being promoted without full understanding of their impact? (a) Because farmers requested GM crops for better productivity. (b) Because traditional crops no longer grow without chemical support. (c) Because the chemical industry no longer markets pesticides. (d) Because their long-term effects have not been fully studied.

[Terjawab] What action does the infraspinatus muscle perform in the shoulder?