CELL THEORY, STRUCTURES, AND TRANSPORT
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
Who is credited with taking steps towards the creation of the
cell theory?
Jean-Baptiste de Lamarck
What did Theodore Schwann declare about plants?
He declared that plants consist of cells.
What is the statement made by Rudolf Virchow regarding cells?
Every cell comes from a cell.
What is the fundamental unit of structure and function in living
things?
The cell.
What are the key principles of cell theory?
1. All cells come from pre-existing cells by division. 2. Energy
flow occurs within cells. 3. Cells contain hereditary information
(DNA). 4. All cells have the same chemical composition. 5. All
known living things are made up of cells.
What distinguishes unicellular organisms from multicellular
organisms?
,CELL THEORY, STRUCTURES, AND TRANSPORT
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
Unicellular organisms are made up of only one cell, while
multicellular organisms are composed of multiple cells.
What are the main components of a generalized cell?
1. Nuclear envelope 2. Nucleus 3. Plasma membrane 4.
Chromatin 5. Nucleolus 6. Rough ER 7. Ribosomes 8. Soft ER 9.
Golgi Apparatus 10. Cytosol 11. Lysosome 12. Mitochondrion
13. Centrioles 14. Centrosome matrix 15. Microvilli 16.
Microfilament 17. Microtubule 18. Intermediate filaments 19.
Peroxisome 20. Secretion released by exocytosis.
What is the function of the plasma membrane?
It separates intracellular fluids from extracellular fluids and
plays a dynamic role in cellular activity.
What is the Fluid Mosaic Model?
It describes the plasma membrane as a double bilayer of lipids
with imbedded, dispersed proteins.
What are the main types of membrane lipids?
Phospholipids (75%), cholesterol (20%), and glycolipids (5%).
, CELL THEORY, STRUCTURES, AND TRANSPORT
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
What is the difference between cytoplasm and cytosol?
Cytoplasm includes everything in the cell, while cytosol is the
water plus dissolved solutes.
What are the two main types of membrane proteins?
Integral (transmembrane) proteins and peripheral proteins.
What happens to a protein when a carbohydrate group is
attached to it?
It becomes a glycoprotein if attached to a protein or a glycolipid
if attached to a lipid.
What are some functions of membrane proteins?
Transport, enzymatic activity, receptors for signal transduction,
ion channels, cell-cell recognition, and attachment to
cytoskeleton and extracellular matrix.
How do transporter proteins function?
They transport specific substances across the plasma
membrane by changing shape.
What role do enzymes play in cellular activity?
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
Who is credited with taking steps towards the creation of the
cell theory?
Jean-Baptiste de Lamarck
What did Theodore Schwann declare about plants?
He declared that plants consist of cells.
What is the statement made by Rudolf Virchow regarding cells?
Every cell comes from a cell.
What is the fundamental unit of structure and function in living
things?
The cell.
What are the key principles of cell theory?
1. All cells come from pre-existing cells by division. 2. Energy
flow occurs within cells. 3. Cells contain hereditary information
(DNA). 4. All cells have the same chemical composition. 5. All
known living things are made up of cells.
What distinguishes unicellular organisms from multicellular
organisms?
,CELL THEORY, STRUCTURES, AND TRANSPORT
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
Unicellular organisms are made up of only one cell, while
multicellular organisms are composed of multiple cells.
What are the main components of a generalized cell?
1. Nuclear envelope 2. Nucleus 3. Plasma membrane 4.
Chromatin 5. Nucleolus 6. Rough ER 7. Ribosomes 8. Soft ER 9.
Golgi Apparatus 10. Cytosol 11. Lysosome 12. Mitochondrion
13. Centrioles 14. Centrosome matrix 15. Microvilli 16.
Microfilament 17. Microtubule 18. Intermediate filaments 19.
Peroxisome 20. Secretion released by exocytosis.
What is the function of the plasma membrane?
It separates intracellular fluids from extracellular fluids and
plays a dynamic role in cellular activity.
What is the Fluid Mosaic Model?
It describes the plasma membrane as a double bilayer of lipids
with imbedded, dispersed proteins.
What are the main types of membrane lipids?
Phospholipids (75%), cholesterol (20%), and glycolipids (5%).
, CELL THEORY, STRUCTURES, AND TRANSPORT
MECHANISMS IN BIOLOGY EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 ALL
ANSWERS 100% CORRECT VERIFIED BEST GRADED
A+ FOR PASS
What is the difference between cytoplasm and cytosol?
Cytoplasm includes everything in the cell, while cytosol is the
water plus dissolved solutes.
What are the two main types of membrane proteins?
Integral (transmembrane) proteins and peripheral proteins.
What happens to a protein when a carbohydrate group is
attached to it?
It becomes a glycoprotein if attached to a protein or a glycolipid
if attached to a lipid.
What are some functions of membrane proteins?
Transport, enzymatic activity, receptors for signal transduction,
ion channels, cell-cell recognition, and attachment to
cytoskeleton and extracellular matrix.
How do transporter proteins function?
They transport specific substances across the plasma
membrane by changing shape.
What role do enzymes play in cellular activity?
