Pearson BIO 9. (II) Respiration in Plants

Respiration is an:

• Exothermic process

• Endothermic process

• Anabolic process

• None of these

RQ is less than one at the time of respiration of

• Starch

• Sugarcane

• Glucose

• Groundnut

In succulent plants, RQ is less than one because of

• Complete oxidation

• Complete reduction

• Incomplete reduction

• Incomplete oxidation

In Opuntia, the RQ will be

• One

• Less than 1

• More than 1

• Zero

Phosphorylation of glucose during glycolysis is catalyzed by:

• Phosphoglucomutase

• Phosphoglucoisomerase

• Hexokinase

• Phosphorylase

Pyruvic acid, the key product of glycolysis, can have many metabolic fates. Under aerobic condition it forms:

• Lactic acid

• CO2 + H2O

• Acetyl-CoA + CO2

• Ethanol + CO2

The ultimate electron acceptor of respiration in an aerobic organism is

• Cytochrome

• Oxygen

• Hydrogen

• Glucose

Electron Transport System (ETS) is located in mitochondrial:

• Outer membrane

• Inter membrane space

• Inner membrane

• Matrix

Which of the following exhibits the highest rate of respiration?

• Growing shoot apex

• Germinating seed

• Root tip

• Leaf bud

The end product/products of oxidative phosphorylation is/are

• NADH

• Oxygen

• ADP

• ATP + H2O