Botany
Cell - The Unit of Life
MCQ (Single Correct Answer)
Cell Cycle and Cell Division
MCQ (Single Correct Answer)
Sexual Reproduction in Flowering Plants
MCQ (Single Correct Answer)
Microbes in Human Welfare
MCQ (Single Correct Answer)
Anatomy of Flowering Plants
MCQ (Single Correct Answer)
Transport in Plants
MCQ (Single Correct Answer)
Respiration in Plants
MCQ (Single Correct Answer)
Biotechnology: Principles and Processes
MCQ (Single Correct Answer)
Biodiversity and Conservation
MCQ (Single Correct Answer)
Biological Classification
MCQ (Single Correct Answer)
Morphology of Flowering Plants
MCQ (Single Correct Answer)
Photosynthesis in Higher Plants
MCQ (Single Correct Answer)
Principles of Inheritance and Variation
MCQ (Single Correct Answer)
Strategies for Enhancement in Food Production
MCQ (Single Correct Answer)
Biotechnology and It's Applications
MCQ (Single Correct Answer)
Organisms and Populations
MCQ (Single Correct Answer)
Environmental Issues
MCQ (Single Correct Answer)
Zoology
Human Health and Diseases
MCQ (Single Correct Answer)
Body Fluids and Its Circulation
MCQ (Single Correct Answer)
Neural Control and Coordination
MCQ (Single Correct Answer)
Reproduction in Organisms
MCQ (Single Correct Answer)
Structural Organisation in Animals
MCQ (Single Correct Answer)
Excretory Products and Their Elimination
MCQ (Single Correct Answer)
Chemical Coordination and Integration
MCQ (Single Correct Answer)
Human Reproduction
MCQ (Single Correct Answer)
Breathing and Exchange of Gases
MCQ (Single Correct Answer)
1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
According to widely accepted "fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements are incorrect ?
A
Proteins in cell membranes can travel within the lipid bilayer
B
Proteins can also undergo flip-flop movements in the lipid bilayer
C
Proteins can remain confined within certain domains of the membranes
D
Many proteins remain completely embedded within the lipid bilayer
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on
A
Proton gradient
B
Membrane potential
C
Accumulation of Na+ ions
D
Accumulation of K+ ions
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Centromere is required for -
A
Crossing over
B
Movement of chromosomes towards poles
C
Transcription
D
Cytoplasmic cleavage
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is -
A
Mitochondria
B
Endoplasmic Reticulum
C
Chloroplast
D
Lysosome
NEET Subjects