22- Which of these statements is false regarding metabolism in general?a) oxidation can be defined as a loss of electronsb) during photosynthesis, hydrogen atoms are transferred from sugar to O2c) potential energy is the sum of kinetic energy and heat energyd) autotrophs such as Cyanobacteria and Algae are able to produce their own organic molecules23-Among these statements about unicellular organisms, either prokaryotes or eukaryotes, which one is true?a) Gram stain is used to categorize Gram + and Gram - in Archaebacteriab) no fungal Protist is parasiticc) Protozoa are related to Animals in their mode of nutritiond) Euglena have a cell wall made up of peptidoglycans24-Which of these events does not take place in a thylakoid?a) reduction of a certain coenzymeb) ATP productionc) release of a sugar moleculed) oxidation of chlorophyll25-Which of these statements about the factors that influence enzyme activity is true?a) pepsin is a gastric enzyme. Its maximum pH will be around 2b) the optimum temperature of thermophilic Archaebacteria is around 77oCc) the maximum temperature of human enzymes is around 37oC d) an allosteric inhibitor usually binds to the active site of the enzyme28-What is the correct series of steps during photosynthesis?a) CTE - oxidation of chlorophyll by sunlight - reduced coenzyme - Calvin cycleb) Calvin cycle - oxidation of chlorophyll by the sun - CTE - reduced coenzymec) oxidation of chlorophyll by the sun – CTE – reduced coenzyme – Calvin cycled) CTE - reduced coenzyme - oxidation of chlorophyll by the sun - Calvin cycle30-Which are the analogous structures among those presented below?a) the wing of a bird and the forearm of a humanb) the leg of the marsupial mole and that of the eutherian molec) the foreleg of a cat and that of a horsed) they are all similar 31-Taxonomists classify species into groups which are then combined into larger groups. What is the correct sequence of taxonomic groups from the narrowest group? Not all levels are mentioned in the response options.has)species genus class orderb) order class domain reignc) species family class phylumd) gender order family reign32- NADP+ and NAD+ are _____ and exist in _____ respectively.a) nucleotidesplants and bacteriab) carbohydrateanimals and bacteriac) coenzymesplants and animalsd) cofactorsplants and fungi33-Oxidation:a) is the opposite of reductionb) sometimes converts NADH to NAD+c) is accompanied by a transfer of H+ ionsd) all these definitions are correct34-According to animal classification:a) Nematodes are roundwormsb) Octopuses are part of the Molluscsc) Pseudocoelomates are Artiozoad) all of these statements are correct35-The typical structure of a plant leaf is correlated with its photosynthetic capacities. What is true about leaf structure?a) the stomata are mainly located on the upper epidermis in order to maximize the entry of carbon dioxide and the exit of oxygenb) a palisade mesophyll and a spongy mesophyll are arranged appropriately to accomplish photosynthesisc) the veins are conduits arranged in a suitable way to bring the elaborated sap to the leaves and to expel the raw sapd) all these correlations are correct

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