Biology Fsc Part 1 Chapter 11 Online Test With Answers

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Biology Fsc Part 1 Chapter 11 Online Test

Sr. # Questions Answers Choice
1 Carbon fixation refers to the initial incorporation of Carbon Oxygen CO<sub>2</sub> Hydrogen
2 The power house of the cell is Ribosome RER SER Mitochondria
3 Glycolysis is the break down of Fructose Glucose Lactose Maltose
4 Co-enzyme Q is in turn oxidized by cytochrome a a<sup>3</sup> a<sup>2</sup> b
5 When deprived of oxygen, yeast cells obtain energy by fermentation, producing carbon dioxide, ATP, and Acetyl CoA Ethyl alcohol Lactate Pyruvate
6 In the first step of citric acid cycle, acetyl CoA reacts with oxaloacetate to form Pyruvate Citrate NADH ATP
7 Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized and combined with coenzyme A forming acetyl CoA, carbon dioxide and one molecule of NADH FADH<sub>2</sub> ATP ADP
8 Which statement about oxidative phosphorylation is not true Its functions can be served equally well by fermentation In eukaryotes, its takes place in mitochondria It is brought about by the chemiosmotic mechanism It is the formation of ATP during the operation of the respiratory chain
9 Which statement about the chemiosmotic mechanism is not true Protons return through the membrane by way of a channel protein Proton are pumped across a membrane Proton pumping is associated with the respiratory chain Has no connection with the respiratory chain
10 The citric acid cycle Takes place in the mitochondrion Produces two molecules of NAD<sup>+</sup>for every glucose molecule processed It is same as fermentation Has no connection with the respiratory chain
11 Glycolysis Produces no ATP It is same as fermentation Takes place in the mitochondria Reduces two molecules of NAD<sup>+</sup>For every glucose molecule processed
12 Which statement about ATP is not true It is used as an energy currency by all cells It is formed only under aerobic condition Some ATP is used to drive the synthesis of storage compounds It provides energy for many different biochemical reaction
13 During the dark reaction of photosynthesis, the main process that occurs is Release of oxygen Energy absorption by the chlorophyll Adding of hydrogen to the carbon dioxide Formation of ATP
14 When a green plant performs photosynthesis at it maximum rate The rate of water loss in high The water content of the plant will be low The energy content of the plant will be low The energy content will be unaffected
15 Magnesium is an important untrient ion in green plants as it is an essential component of Cell sap Protein Chlorophyll Glucose
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