Photosynthesis Quiz
Quiz by Joshua McQuade
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14 questions
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- Q1A plant wilted but later recovered. During the time the leaves were wilted the rate of photosynthesis decreased because:b) Chlorophyll in the wilting leaves was broken downc) The amount of light reaching the plant was reducedd) The amount of carbon dioxide entering the leaf decreaseda) Enzymes in the leaf cells were denatured60s
- Q2Chloroplasts:b) Are found in all plant cellsa) Contain glycogenc) Are found in some bacterial cellsd) Contain layers of internal membranes60s
- Q3The production of organic molecules in a crop is reduced when leaves begin to wilt because:b) The chlorophyll of wilting leaves decomposesc) Flaccid mesophyll cells of a leaf are not capable of photosynthesisd) Accumulation of carbon dioxide in the leaf inhibits the enzymes required for photosynthesisa) Stomata close preventing the entry of carbon dioxide60s
- Q4The chloroplast is the organelle responsible for photosynthesis. In chloroplastsc) The final product of the light reaction is glucosed) The light reactions occur in the granaa) The light independent reactions require water as the initial reactant.b) The light independent reactions occur in the inner membrane area60s
- Q56 H20 + 6 CO2 --> (energy) X + 6O2. The product X in this biochemical process isADPA monosaccharideAn amino acidA polymer60s
- Q6Considering events that occur in a chloroplast during photosynthesis it is reasonable to claim that:d) ADP produced during the events at P is used by events at Qc) Chlorophyll is essential for the reactions that occur at Qb) Carbon dioxide is an input to reactions at Qa) Oxygen is an input to the reactions at P60s
- Q7The oxygen gas produced during photosynthesis is derived from the splitting of:b) Watere) Chlorophyll A, B or a carotenoid pigmenta) Carbon dioxidec) Light sensitive pigments60s
- Q8Which of the following is not a requirement for photosynthesis?SunlightOxygenChlorophyllWater60s
- Q9In dry conditions plants close the stomata in their leaves to minimise water loss. This results in a significant decrease in the rate of photosynthesis. What is the primary reason for this reduction in photosynthetic rate?b) The enzymes that catalyse the photosynthesis reactions become denatureda) Carbon dioxide, a substrate used in photosynthesis, becomes limitinge) No oxygen is able to reach the cells that normally perform photosynthesisc) Light is not able to reach the chlorophyll molecules60s
- Q10Which of the following gases are produced in various parts of plants under normal metabolic conditions? - I Carbon Dioxide, II Oxygen, III Hydrogena) I onlyc) III onlyd) I and II onlye) I, II and III60s
- Q11NADH is a coenzyme. Which one of the following is a correct statement about NADH?NADH is required in aerobic respiration but not in anaerobic respiration.NADH is a carrier of electrons and protons between reactions in a cell.NADH is not produced in the glycolysis stage of aerobic respirationNADH is the immediate source of energy for cellular activity.60s
- Q12Consider the production of ATP molecules in a eukaryotic cell. The majority of ATP molecules are producedduring glycolysis.during anaerobic respiration.by the electron transport chain.in the Krebs cycle60s
- Q13Transcription of a structural gene can be initiated by thepresence of DNA polymerasearrival of mRNA at a ribosomeincrease in concentration of amino acids in the cytosol of a cell.absence of a protein that is usually attached to an operator for that structural gene60s
- Q14Alpha-globin is a polypeptide consisting of 141 amino acids. In which parts of the pre-mRNA would the codons for these amino acids be found?IntronsExonsPoly-A tailsExons and Introns60s
