Plant Biology - BIOmcqs

1. In which of the Plant Species, Parthenocarpy Takes Place?

Mango

Banana

Peach

Jackfruit

2. This Bioassay is used to Test the Presence of Gibberellins

Dwarf Pea Elongation Technique

Chlorophyll Preservation Test

Excised Radish Cotyledon Enlargement Test

Rice Seedling Growth inhibition Test

3. Gibberellins is an example of

Growth inhibitor

Growth stimulator

Growth hormone

None of these

4. Which of the Following Factors Promotes the Opening of the Stomatal Aperture?

A Decrease in Guard Cell Turgidity

When the Outer Walls of the Guard Cells Contracts

Radial orientation of the Cellulose Microfibrils in the Cell Wall of the Guard Cells

The Longitudinal orientation of the Cellulose Microfibrils in the Cell Wall of Guard Cells

5. A Phosphoglyceride is Always Composed of

Only an Unsaturated Fatty Acid Esterified to a Glycerol Molecule to which a Phosphate Group is Also attached

Only a Saturated Fatty Acid Esterified to a Glycerol Molecule to which a Phosphate Group is Also attached

An Unsaturated or Saturated Fatty Acid Esterified to a Phosphate Molecule to which A Glycerol Molecule is Also attached

An Unsaturated or Saturated Fatty Acid Esterified to a Glycerol Molecule to which a Phosphate Group is Also attached

6. Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.

Binding sites of actin get attached to the myosin head.

Troponin uncovers the actin binding sites.

Tropomyosin gets removed from the binding sites of actin filaments.

Ca2+ goes back inside sarcoplasmic reticulum.

7. The entry of pyruvate into the TCA cycle is inhibited by the presence of a high cellular concentration of

Pyruvate

NADH

Coenzyme A

AMP

8. Which of this is Not a Function that Parenchyma Performs

Stores Nutrients and Food

Aids in Regeneration, Healing and Repairs Wounds

Provides Foundation and Support

None of these

9. If two ends of the fractured bone are opened and kept united via screws and wires drilled in bone substance. This step in fracture repair is called

Open reduction.

Closed Fixation.

Open fixation.

Immobilization

10. Which of these Plants will Lose their Economic Value If Its Fruits are as a Result of induced Parthenocarpy?

Banana

Orange

Grape

Pomegranate

Question 1 of 10