SAT - Science - Biology - Respiration

Question - 1

In respiration, pyruvic acid is

  • A formed only when the cell is with mitochondria
  • B formed only when oxygen is available
  • C formed only when cell is performing aerobic respiration
  • D Commonly formed as intermediate product of aerobic and anaerobic respiration

Question - 2

Onegram mole of glucose on complete oxidation to CO2 and H2O produce about

  • A 686,000 cal
  • B 6,860 cal
  • C 6,860,000 cal
  • D 68,600 cal

Question - 3

What ultimately occurs during respiration?

  • A Synthesis ATP
  • B Electron transport
  • C Breakdown of ATP
  • D Capture of solar energy

Question - 4

Number of steps involved in release of CO2 during kreb's

  • A 1
  • B 2
  • C 6
  • D 12

Question - 5

How many ATPs are produced from NADH2 during aerobic respiration?

  • A 30
  • B 8
  • C 34
  • D 2

Question - 6

ETC and TCA enzyme occurs in

  • A Endoplasmic reticulum
  • B Ribosomes
  • C Mitochondria
  • D Cytoplasm

Question - 7

Oxidation of a molecule of acetyl Co-A produce

  • A 12 ATP
  • B 15 ATP
  • C 6 ATP
  • D 24 ATP

Question - 8

Incomplete breakdown of sugars in anaerobic respiration forms

  • A Glucose and CO2
  • B Alcohol and CO2
  • C Water and CO2
  • D Sucrose and Water

Question - 9

Muscle cell starved of oxygen and supplied with pyruvic acid

  • A CO2 only
  • B Lactic acid
  • C Ethanol
  • D CO2 and H2O

Question - 10

The organic acid formed last in aerobic respiration

  • A Citric acid
  • B Pyruvic acid
  • C Oxaloaetic acid
  • D Phosphoglyceric acid
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