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Quiz 8
Mdcat-past-papers - BUMHS - Biology Quiz
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Board: BUMHS | Subject: Biology |
141. The enzyme which is used in Calvin cycle is:
Oxidase
Reductase
Isomerase
Rubisco
142. What is the function of Ribulose?
Intermediate in photosynthesis
Intermediate in cellular respiration
Component of DNA and RNA
Component of cell wall
143. FADH2 is formed in:
Glycolysis
Pyruvic acid oxidation
Krebs cycle
form in all
144. Before entering Krebs cycle, the pyruvate is first decarboxylated and oxidized into:
Alpha ketoglutaric acid
Glyceric acid
Citric acid
Acetic acid
145. The end product of anaerobic respiration in humans and other mammals is:
Pyruvic acid
Ethanol
Lactic acid
Glucose
146. In electron transport chain, the electrons from NADH and FADH2 are passed to:
Cytochrome a
Cytochrome a3
Co-enzyme C
Co-enzyme Q
147. In aerobic respiration:
Pyruvate is completely oxidized to form CO2 and H2O
Pyruvate is completely oxidized to form oxygen and water
Pyruvate is carboxylated to form citrate
Pyruvate is converted to ethanol and CO2
148. Which is the major event in electron transport chain?
ATP synthesis
Substitution
Decarboxylation
isomerization
149. During photorespiration, an acid glycolate is formed which is converted into glycine by:
Lysosomes
Peroxisomes
Golgi Complex
vacuole
150. The end product of glycolysis in anaerobic respiration is
Ethanol and Carbon dioxide
Lactate
Pyruvate
Acetyl CoA
151. The production of energy is
Faster in aerobic respiration
Same in both types of respiration
Faster in anaerobic respiration
Not associated with respiration
152. Cancer cells require large amount of ATP. WOP component of cellular respiration produce large amount of ATP?
Glycolysis
Krebs cycle
ETC
Oxidative phosphorylation
153. End product of glycolysis in yeast is
Ethanol and carbon dioxide
Lactate
Pyruvate
Acetyl Co A
154. Fats and proteins can be used as respiratory fuel. Which of the following serves as common molecule produced through their catabolism?
Acetyl CoA
Pyruvate
G3P
Lactate
155. Which of following enzyme is released in an inactive form:
Amylase
Enterokinase
Lipase
Pepsin
156. During swallowing of food which structure close nasal opening?
Hard palate
Soft palate
Epiglottis
Larynx
157. Trypsinogen is converted into trypsin by the activity of:
Goblet cells
Absorptive cells
Enterokinase
Peptidase
158. Food enters from stomach into small intestine through:
Pyloric sphincter
Cardiac sphincter
Semilunar valve
Diaphragm
159. Bolus enters the esophagus not the trachea due to presence of:
Roof palate
Mouth
Epiglottis
Buccal cavity
160. What is the optimum pH of pepsin in stomach?
3
2
2.5
1.4
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