Prepare for NEET Biology Cell: The Unit of Life with MCQs & PYQs on NEET.GUIDE. Enjoy free practice, previous year questions, and expert solutions to understand cell structure and function.
Which part of the phospholipid is hydrophobic?
Phosphate head
Glycerol backbone
Fatty acid tails
Entire molecule
What is the function of cholesterol in the cell membrane?
Provide structural support
Transport molecules
Maintain fluidity
Act as receptors
Which type of molecule can easily pass through the cell membrane without assistance?
Large, polar molecules
Ions
Small, nonpolar molecules
Proteins
The fluid mosaic model describes the cell membrane as:
A rigid, static layer
A solid barrier
A dynamic structure with embedded proteins
A single layer of phospholipids
Which cell organelle is known as the 'powerhouse of the cell' because it generates most of the cell's supply of ATP?
Lysosomes
Ribosomes
Mitochondria
Golgi apparatus
Which organelle is responsible for protein synthesis?
Endoplasmic Reticulum
Ribosomes
Nucleus
Vacuoles
What organelle contains the cell's genetic material?
Cytoplasm
Cell membrane
Nucleus
Mitochondria
Which organelle is primarily involved in the packaging and modification of proteins?
Lysosomes
Golgi apparatus
Ribosomes
Endoplasmic Reticulum
Which organelles are responsible for digesting worn-out organelles and cellular debris?
Ribosomes
Mitochondria
Lysosomes
Vacuoles
Which organelle plays a crucial role in detoxification and lipid synthesis?
Rough Endoplasmic Reticulum
Golgi Apparatus
Smooth Endoplasmic Reticulum
Lysosomes