Identify the correct biological process or term for each statement.

Welcome back — been a while! Let's pick up where you left off. Multiple Choice Questions: 1. The chemical digestion of protein begins in the stomach. c. Stomach* 2. Photosynthesis produces glucose, which is stored as starch. Starch is tested to confirm photosynthesis. d. Starch* 3. The movement of water molecules from a region of higher concentration to a region of lower concentration across a semi-permeable membrane is called osmosis. c. Osmosis* 4. Active transport moves substances against their concentration gradient, which requires energy. a. Active transport* 5. Saprophytic nutrition involves organisms secreting digestive enzymes externally to break down food before absorption. c. Saprophytic nutrition* 6. All living organisms (different species) in a specific locality constitute a community. a. Community* 7. Decay, or decomposition by microorganisms, involves respiration which releases carbon dioxide into the atmosphere. c. Decay* 8. Benedict's solution tests for reducing sugars. Glucose is a reducing sugar and will produce a brick-red precipitate. d. Glucose solution* 9. Boiling a leaf in alcohol removes chlorophyll, which would otherwise mask the color change when testing for starch with iodine. c. Remove chlorophyll* 10. Pseudopodia are temporary extensions of the cytoplasm used by amoeba for movement and engulfing food particles, which is part of feeding. d. Feeding* 11. The specific place where an organism lives is known as its habitat. d. Habitat* 12. A brick red precipitate with Benedict's solution indicates the presence of reducing sugars. a. Reducing sugar* SECTION B: SHORT ANSWER 1. a. What are enzymes? Enzymes are biological catalysts, typically proteins, that accelerate the rate of specific biochemical reactions without being consumed in the process. 1. b. List 5 characteristics of enzymes? • Enzymes are biological catalysts. • They are specific in their action, acting on particular substrates. • They are primarily proteins. • They are sensitive to temperature, with optimal activity at certain temperatures and denaturing at high temperatures. • They are sensitive to pH, functioning best within a narrow pH range. 1. c. Give 3 importance of protein to man? • Proteins are essential for the growth and repair of body tissues. • They are crucial for the production of enzymes, hormones, and antibodies. • Proteins form the structural components of muscles, skin, hair, and nails. 1. d. How would you demonstrate that soaked maize contains reducing sugar? Step 1: Grind the soaked maize to create an extract and filter it to obtain a clear solution. Step 2: Add a few drops of Benedict's solution to the maize extract in a test tube. Step 3: Heat the test tube in a water bath for about 5 minutes. Step 4: The formation of a brick-red precipitate indicates the presence of reducing sugars. Send me the next one 📸