Photosystems - Study guides, Class notes & Summaries

Bio 100 BYU Independent Study Midterm 1 Questions & Answers The reactions of photosynthesis can be divided into two stages: - Answer-Light-dependent and lightindependent The full range of energy in the universe is called - Answer-The electromagnetic spectrum Which one of the following is not a photosynthetic pigment? - Answer-Photosystem I How do C4 plants differ from C3 plants? - Answer-C4 plants store carbon in the PEP molecule. C4 plants have a special anatomical structure. C4 plants ...

What happens when a suitable substrate binds to an enzyme? - ANSWER-The active site amino acids bond with the substrate Cyanide binds to cytochrome oxidase at a site where the substrate oxygen would normally bind. This is an example of - ANSWER-competitive inhibition an example of a catabolic reaction is - ANSWER-lactate fermentation what is an anabolic process that is endergonic and endothermic? - ANSWER-CH₄ +2O₂ → CO₂ + 2H₂O ATP yields 7.3 kcal/mol of free energy and it i...

AP Biology: Exam Review: Practice Questions with Verified Answers 1. _______ is a process of nuclear division in which the number of chromosomes in certain cells is halved during gamete formation. a. Mitosis b. Meiosis c. Spermatogenesis d. Glycolysis B. Meiosis 1. Simple molecules are further broken down in cells in a process called _________, during which energy stored in their chemical bonds is used to power the production of ATP. A. photosynthesis B. anabolism C. resp...

Honors Biology Chapter 8 with Complete and Verified Solutions What is the significance of the electron transport chain in photosynthesis? The electron transport chain transfers electrons through a series of proteins, creating a proton gradient that drives the synthesis of ATP. What are the two main stages of photosynthesis? The two main stages of photosynthesis are the light-dependent reactions and the Calvin cycle. What is the role of NADP+ in photosynthesis? NADP+ acts as a...

One of the important waste products of photosynthesis is oxygen gas. Where does this oxygen gas come from? Oxygen is released when water is broken down to extract electrons and protons for use in the light reactions. The light reactions produce _____. oxygen, NADPH, and ATP 00:07 01:24 The thylakoid membranes bring together the components necessary to carry out the _____. light reactions Incoming photons of light energy initiate photosynthesis by _____. excitin...

A sequence of changes in a community Over a period of time - Answer Define Succession Final stage Stable - Answer Define Climax community Thylakoids made of membranes Arranged as grana Contain chlorophyll Arranged as photosystems Membranes contain ATPase Electron carriers associated with thylakoid membranes - Answer Describe the structures in a chloroplast involved in the light-dependent reactions Crops grown all year round Plants photosynthesise 24 hours a day Less physi...

The inner (internal) membrane of the chloroplasts which contains chlorophyll and other light capturing pigments is also called the ______ membrane - ANSWER thylakoid Pigment molecules within the photosystems capture packets of light energy that are called _______. - ANSWER photons What is liberated during the light-dependent stages of photosynthesis? - ANSWER Oxygen

Honors Biology Final Exam Review Questions with Answers NADP+ - Answer-an electron carrier; converts to NADPH when it is carrying 2 high energy-electrons light-dependent reactions - Answer-require the direct involvement of light and light-absorbing pigments; produces ATP, NADPH, & oxygen; occurs within the thylakoids light-independent reactions - Answer-ATP and NADPH molecules (from light-dependent reactions) are used to produce high-energy sugars from carbon dioxide; produced ADP, NADP+...

What is the purpose of photosynthesis - make sugar for cellular respiration How does cellular respiration compare to photosynthesis? - Photosynthesis is the flip opposite of cellular respiration Photoautotroph - self-feeding organism that uses light energy from the sun some are prokaryotes plants some are protists what do SOME protists and plant cells have when they are photoautotrophs? - Chloroplasts what makes chloroplasts green? - chlorophyll what is chlorophyll? - green p...

The term greenhouse effect refers to the idea that correct answers The temperature of the earth is increasing because of heat trapped by gasses such as CO2 What is the overall reaction for the Calvin Cycle, or dark reactions? correct answers 3CO2 + 6NADPH + 9ATP + 6H2O --> Glyceraldehyde-3-Phosphate + 6 NADP+ + 9ADP + 9Pi What is the overall balanced reaction for the light reactions of photosynthesis? correct answers 2H2O + 8photons + 2NADP+ + 3ADP + 3Pi --> O2 + 2NADPH + 3ATP For...