Second Monthly Test in General Biology 1 (Grade 11) - 2024-2025

**SECOND MONTHLY TEST IN GENERAL BIOLOGY 1** **(Grade 11- MO.DIONISIA)\ A.Y. 2024-2025** Name:\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_Date:\_\_\_\_\_\_\_\_\_\_\_\_\_Score:\_\_\_\_\_\_\_\_\_\_\_\ Subject Teacher: **Ms. Marian C. Flores** ***I.MULTIPLE CHOICE....

**SECOND MONTHLY TEST IN GENERAL BIOLOGY 1** **(Grade 11- MO.DIONISIA)\ A.Y. 2024-2025** Name:\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_Date:\_\_\_\_\_\_\_\_\_\_\_\_\_Score:\_\_\_\_\_\_\_\_\_\_\_\ Subject Teacher: **Ms. Marian C. Flores** ***I.MULTIPLE CHOICE. DIRECTION:*** Read each item carefully. Write the letter of the best answer on the space provided before the number. Justify your answer in 2-3 sentences. **(2 points each)** \_\_\_\_\_\_\_1. Which of the following is a characteristic of osmosis?\ a. Movement of water molecules across a selectively permeable membrane\ b. Movement of solutes from low to high concentration\ c. Movement of molecules using ATP\ d. Movement of molecules through protein channels **(2.) JUSTIFY:**\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_3. What is the primary difference between facilitated diffusion and active transport?\ a. Facilitated diffusion requires energy, while active transport does not\ b. Facilitated diffusion moves substances against the gradient, active transport does not\ c. Facilitated diffusion uses protein channels, while active transport requires energy\ d. Facilitated diffusion does not require protein channels, while active transport does **(4.) JUSTIFY:**\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_5. Which process requires energy in the form of ATP?\ a. Simple diffusion\ b. Osmosis\ c. Facilitated diffusion\ d. Active transport **(6.) JUSTIFY:**\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_7. What is the primary role of the cell membrane in osmosis?\ a. To allow passage of all substances into the cell\ b. To prevent any substance from entering the cell\ c. To regulate the movement of water and some solutes into and out of the cell\ d. To supply energy for cellular transport processes **(8.) JUSTIFY:**\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_9. Which of the following best describes diffusion?\ a. Movement of molecules from an area of low concentration to an area of high concentration\ b. Movement of molecules from an area of high concentration to an area of low concentration\ c. Movement of water molecules through a selectively permeable membrane\ d. Movement of molecules using energy **(10.) JUSTIFY:** ***II. FILL IN THE BLANK.*** Fill in the blank with the correct words. Choose your answer from the box. 11\. pH stands for \_\_\_\_\_\_\_\_\_\_\_\_\_. It is a measure of the hydrogen ion (H^+^) and hydroxide ion (OH^-^) concentrations. 12\. For the enzyme in the \_\_\_\_\_\_\_\_\_\_ body cells, the optimum temperature is 37°C. 13\. Increasing \_\_\_\_\_\_\_\_\_ concentration, increases the rate of reactions. 14\. The amount of substance or quantity of a material is called \_\_\_\_\_\_\_\_\_\_\_\_. 15\. Oxidation involves the \_\_\_\_\_\_ of electrons. 16\. \_\_\_\_\_\_\_\_ involves the gain of electrons. 17\. The substance \_\_\_\_\_\_\_\_\_ is the reducing agent. 18\. The substance reduced is the \_\_\_\_\_\_\_\_ agent. 19\. ADP is composed of Adenine, \_\_\_\_\_\_\_\_\_, and two phosphate molecules. 20\. \_\_\_\_\_\_\_ is composed of Adenine, Ribose and three phosphate molecules. ***III. COMPLETION.*** For items 21-25, complete the paragraph by underlining the word that best describes the components of an enzyme. ***IV. ESSAY.*** DIRECTION: In *2-3 sentences*, answer the question to the best of your knowledge. 30. What are pathogens? How does cell of the immune system destroy them? **(5points)** 31-35. How does exocytosis and endocytosis contribute to cellular homeostasis? **(5points)** 36-38. Describe how temperature affects enzyme activity. **(3points)** 39-40. Differentiate Phagocytosis from Pinocytosis. **(2points)**