General Biology 1 Quarter 2 PDF

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Summary

This document is a set of lesson notes from General Biology 1, Quarter 2. The notes cover the topics of electron carriers, electron transport chain, and cellular respiration. The materials also discuss activities and questions to promote learning.

Full Transcript

GENERAL BIOLOGY 1 Quarter 2 Good day! REMINDERS!! ALWAYS wear your face masks. FREQUENTLY sanitize your hands and/or use alcohol. AVOID unnecessary chatting with seatmates. KEEP mobile phones/gadgets temporarily. CLASS PRAYER Father God,...

GENERAL BIOLOGY 1 Quarter 2 Good day! REMINDERS!! ALWAYS wear your face masks. FREQUENTLY sanitize your hands and/or use alcohol. AVOID unnecessary chatting with seatmates. KEEP mobile phones/gadgets temporarily. CLASS PRAYER Father God, Come be with us today. Fill our hearts with joy. Fill our minds with learning. Fill our lesson with fun. Fill our classmates with kindness. Fill our classroom with peace. Fill our school with love. Amen. Who’s IN? Who’s OUT? REVIEW Q. What are the concepts we were able to discuss during Quarter 1? FQ. How does these become essential biological concepts? LESSON OBJECTIVES a. Cite the functions of electron and the effect of its addition and removal to compounds. b. Describe the compounds considered as electron carriers and the electron transport chain. MELC: o Explain coupled reaction processes and describe the role of ATP in energy coupling and transfer. STEM_BIO11/12-IIa-j-1 ACTIVITY 1 Electron Flashback Direction: Learners state facts regarding electrons. Electron ACTIVITY 2 Agree or Disagree Direction: Learners analyze each statement and decide whether they agree or disagree. Electron is a neutrally charged sub-atomic particle. The removal of electron from a molecule results in a decrease in potential energy in an oxidized compound. Electron carriers are molecules that play a crucial role in the transfer of electrons during cellular respiration and photosynthesis. NAD+ consists of two nucleotides, adenine, and nicotinamide. FAD (Flavin Adenine Dinucleotide) Accepts electrons and hydrogen ions, becoming reduced to FADH2. Electron transport chain facilitates the transfer of electrons from electron carriers to generate ADP. Lesson 1: Electron Carriers Electron One of the three basic subatomic particles – along with protons and neutrons – that makes up atoms. It is negatively charged. Electrons The removal of electron from a molecule results in a decrease in potential energy in an oxidized compound. A compound that oxidizes another is called oxidizing agent. The electron shifted to a second compound, causing it to be reduced. A compound that reduces another is called reducing agent. The transfer of electron is important because most energy stored in atoms and fuel cell functions is in the form of high-energy electrons. Electron Carriers Molecules that play a crucial role in the transfer of electrons during cellular respiration and photosynthesis. They act as intermediaries, shuttling electrons between different metabolic pathways, facilitating energy production. Understanding electron carriers helps us comprehend the intricate processes that occur within living organisms. Types of Electron Carriers: NAD+ (Nicotinamide Adenine Dinucleotide) FAD (Flavin Adenine Dinucleotide) Coenzyme Q (Ubiquinone) Cytochromes Iron-Sulfur Proteins 1. NAD+ (Nicotinamide Adenine Dinucleotide) Structure: Consists of two nucleotides, adenine, and nicotinamide. Function: Accepts electrons and hydrogen ions, becoming reduced to NADH, which carries the electrons to the electron transport chain. 2. FAD (Flavin Adenine Dinucleotide) Structure: Contains a flavin molecule, adenine, and ribose. Function: Accepts electrons and hydrogen ions, becoming reduced to FADH2, which transfers the electrons to the electron transport chain. 3. Coenzyme Q (Ubiquinone) Structure: A lipid-soluble molecule with a long hydrophobic tail and a quinone head. Function: Accepts electrons from NADH and FADH2, shuttling them to the electron transport chain. 4. Cytochromes Structure: Proteins containing a heme group with an iron atom. Function: Accept and donate electrons, facilitating the transfer of electrons along the electron transport chain. 5. Iron-Sulfur Proteins Structure: Proteins containing iron-sulfur clusters. Function: Accept and donate electrons, participating in electron transfer reactions within the electron transport chain. Electron Transport Chain A series of electron carrier molecules embedded in the inner mitochondrial membrane. Facilitates the transfer of electrons from electron carriers to generate ATP, the energy currency of the cell. Questions? ACTIVITY 3 Match It! Direction: Learners Match the items in Column A to those in Column B. Column A Column B 1. NAD+ 1. Proteins 2. FAD containing a heme group 3. Coenzyme Q with an iron atom. 4. Cytochromes 5. Iron-Sulfur Proteins Column A Column B 1. NAD+ 2. A lipid- soluble 2. FAD molecule with a long 3. Coenzyme Q hydrophobic tail and a quinone 4. Cytochromes head. 5. Iron-Sulfur Proteins Column A Column B 1. NAD+ 2. FAD 3. Consists of two nucleotides, 3. Coenzyme Q adenine, and nicotinamide. 4. Cytochromes 5. Iron-Sulfur Proteins Column A Column B 1. NAD+ 2. FAD 4. Proteins containing iron- 3. Coenzyme Q sulfur clusters. 4. Cytochromes 5. Iron-Sulfur Proteins Column A Column B 1. NAD+ 2. FAD 5. Contains a flavin molecule, 3. Coenzyme Q adenine, and ribose. 4. Cytochromes 5. Iron-Sulfur Proteins Application Q. To which activity /scenario in your daily life can you relate the concepts discussed? Let’s Wrap Up! Sum up the lesson through expounding the key terms from the lesson discussed: Key Terms: ELECTRONS CARRIERS REDUCING AGENTS OXIDIZING ENRICHMENT Direction: Do advance study and research regarding: ATP or Adenosine Triphosphate THANK YOU!

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