(Light Reaction) Reduction of carbon dioxide to carbohydrates. The first step in dark reaction of photosynthesis is . •The C 3 pathway. During the dark reaction of photosynthesis (a) Water is split (b) CO2 is reduced to organic compounds (c) Chlorophyll is activated (d) 6 carbon sugar is broken into 3 carbon sugar (e) None 11. 6. Photosynthesis Assertion and Reason . The equation of dark reaction may be summed up as: 6RuBP + 6CO 2 + 18ATP + 12NADPH ———→ 6RuBP + C 6 H 12 O 6 +18 ADP +18P +12 NADP. Answer : Chloroplasts are mainly found in the mesophyll cells located between the upper and lower epidermis of the leaves. 19. Answer. ... ICSE Class 10th Biology Photosynthesis MCQS. Photosynthesis ICSE Class-10 Concise Selina Biology Solutions Chapter-6. Photolysis Photophosphorylation It is a process of splitting of water molecule into 2H+ + 4e- + 1/2 O2 in the … (1) If both A and R are True and the R is a correct explanation of the A. 5 carbons. The seat of dark reaction of photosynthesis is . Dark reaction is discovered by Melvin clavin. In the reduction stage of Calvin cycle, phosphoglyceric acid is reduced to phosphoglyceraldehyde-3-phosphate by ___? Similarly, the various anoxygenic photosynthesis reactions can be represented as a single generalized formula: CO2 + 2H2A + Light Energy → [CH2O] + 2A + H2O Photosynthesis takes place in the chloroplast. Assertion : The atmospheric concentration of CO 2 at which photosynthesis just compensates for respiration is referred to as CO 2 compensation point. The “Dark” Reactions • Reductive conversion of CO 2 into carbohydrates • Process is powered by ATP and NADPH (formed during the light reactions of photosynthesis) TheCO 2 fixation pathway has several names: •The reductive pentose phosphate (RPP) pathway. dark reaction of photosynthesis there is a net gain of ___ PGAL molecule(s)? 90% of the total photosynthesis is carried out by a) algae b) Mesophytes c) Pteridophytes d) Xerophytes 20. Answer : The difference is given below. Comprehensive and detail lecture on Calvin cycle with Mnemonics and some mcqs points discuss. Explanation: Correct! Dark reaction of photosynthesis is called so because [CPMT 1976; RPMT 1985;AMU 1988; JIPMER 1988; NCERT 1980] A) It can also occur in dark done clear. D. Replacement reaction. In the final step of Calvin cycle, ribulose biphosphate is regenerated from ___ molecules of PGAL? 2 carbons. Photosystems are the protein complexes involved in photosynthesis. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms’ activities. An essential process connected with photosynthesis is a) Synthesis of glucose b) Photolysis of water c) Photophosphorylation d) Breakdown of glucose 21. 1 Mark Questions Answer : Photophosphorylation is the process of conversion of ADP into ATP during photosynthesis. In C 4 pathway (A) O 2 combine with PGA (B) CO 2 combine with PEP (C) CO 2 combine with RMP (D) All of the above . A. 18ATP is required for the synthesis of one molecule of glucose, 6ATP is used for the regeneration of RuBP. This Video contains most important questions about photosynthesis which comes in different exams. 5. Explanation: No explanation available. Assertion: in light reaction of photosynthesis, light is required for the functioning of PS I and PS II, and production of ATP and NADPH. MCQ on Photosynthesis (Plant Physiology MCQ – 01) Dear Students, Welcome to Plant Physiology MCQ-01 (Photosynthesis).This MCQ set consists of Plant Physiology Multiple Choice Questions from the topic Photosynthesis – The Light and Dark Reactions of Photosynthesis with Answer Key.These questions can be used for the preparation of all the competitive examinations in Biology / Life … 58. Dark Reaction of Photosynthesis (or) Light-independent Reaction. C. Organic reaction. questions (MCQs) on the theme of photosynthesis. 3 carbons. Thus photosystem I is also known as P700 So, the correct answer is '700 nm Chapter 10 Photosynthesis ... split water and release oxygen to the reaction-center chlorophyll B) harvest photons and transfer light energy to the reaction-center chlorophyll C) synthesize ATP from ADP and Pi D) transfer electrons to ferredoxin and then NADPH ... dark to a pH-8 solution. Correct Answer: stroma. These short solved questions or quizzes are provided by … An Oxidation-Reduction reaction. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These Photosynthesis Assertion and Reason questions consist of two statements each, printed as “ Assertion ” and “ Reason “. The end products of Photosynthesis are: Glucose, Oxygen and Water. In the dark reaction of photosynthesis: (a) PGAL is formed … (Dark Reaction by Calvin Cycle) Q4: Mention the conditions for photosynthesis. Be the first to write the explanation for this question by commenting below. BANK OF MCQs Download ETEA past papers Chapterwise and yearwise, 100+ FSC Lectures, 10+ top PDF books and BOM free Sunday tests. B. Synthesis reaction. There are two types of photosynthetic processes: Oxygenic photosynthesis and anoxgenic photosynthesis is the most common and is seen in plants, algae and cyanobacteria. Light is necessary during photosynthesis for heating opening of stomata evolution of Hydrogen Photolysis of water 8. 10. B. Answers can be voted on for accuracy and those who answer receive points and gain reputation. The requirements of Photosynthesis are: Carbondioxide, Water, sunlight and Chlorophyll. C . Wrong! Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the fuel used by all living things.Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Reason: dark reaction does not occur in light a)If both assertion and reason are true and reason is the correct explanation of assertion. Photosystem I, reaction centre pigment chlorophyll a has absorption peak at 700nm. The gas produced duriong photosynthesis is oxygen. 7 people answered this MCQ question is the answer among for the mcq Dark reaction in photosynthesis is called so because How much energy is utilized in the synthesis of one gram mole of glucose 673 kcal 686 kcal 666 kcal 696 kcal Answer: 2 Q2. Question 1. 4 carbons. We Provide Step by Step Answer of Progress Check , MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type Questions and Structured / Applications / Skill Type Questions of Exercise-6 Photosynthesis ICSE Class-10 Concise .Visit official Website CISCE for detail information about … Photosynthesis in Higher Plants Class 11 MCQs Questions with Answers. Photosynthesis MCQs 1. b) Ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) catalyzes the … Photosynthesis and Respiration Multiple Choice Questions and Answers for competitive exams. The chlorophyll present in the chloroplast traps the light from the sun and carries out the process. 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