1. SATISH PRADHAN DNYANASADHANA COLLEGE,THANE
Class- S.Y.Bsc Semister-III
Sub: Physics Paper-III
Unit-II
Topic- Biophysics
Prof. Ms. Ankita P. Angre.

2. Biophysics…
Biology
Biochemistry
Biophysics
Chemistry
Physics

3. Introduction
Biophysics is an interdisciplinary science that applies the theories and methods of physics, to question of biology.
Biophysics is the study of physical phenomenon & physical process in living things , from the level of molecules and cell to the biosphere as whole.
Biophysics is that branch of knowledge that applies the principles of physics and chemistry and the methods of mathematical analysis and computer modeling to understand how biological systems work.
It is a modern, interdisciplinary field of science leading to new approaches for our understanding of biological functions

4. In biophysics the main emphasis is on the quantitative analysis of the physical and chemical aspects of the functions of biological molecules, organisms and entities.
The techniques and methodologies that biophysics relies on are closer to Physics and Chemistry, but areas of application are in the biological , medical, drug design & development and related sciences.

5. Study levels of Biophysics
Biophysics at the Cellular level
Biophysics at the Molecular level
Biophysics at the multicellular level

6. Study level of biophysics
1) Biophysics at the cellular level:
Transport within and across cell membranes
Structure and properties of cell membranes
Propagation of neural signals
Cytoskeleton and cell movements
Cytokinesis

7. Study level of biophysics…..
2) Biophysics at the molecular level:
Determination and prediction of protein structures
Single-molecule spectroscopy
Molecular motors
The protein folding problem
DNA-protein interactions

8. Study level of biophysics
3) Biophysics at multicellular and higher
levels:
Tissue and biomedical engineering
Physical and mathematical physiology
Biomechanics and biorheology

9. Structure of cell: -

13. Cell structure:

14. FUNCTIONS OF THE CELL Basic Unit of Life Protection And Support
Movement
Communication
Cell metabolism and energy release
Inheritance

15. TYPES OF CELLS
Eukaryotic cell
Prokaryotic cell

16. A PROKARYOTIC CELL: Is a single celled organism that does not have a
nucleus or membrane bound organelles.
Its Nucleic acid/DNA is locked in the cytoplasm.

17. Cell organism:
1)Mitochondria

19. 2) Nucleus: The nucleus controls the cell.
It is the largest organelle in the cell and contains the cell’s Nucleic Acid/DNA.
The nucleus is like the turtle’s brain.

20. 3) CHROMOSOMES: Chromosomes are inside the nucleus and are made of
genes (DNA/RNA).
Genes decide the cells traits and activities
(heart cell, eye cell - such as color).

21. NUCLEOLUS
Inside the nucleus is another organelle called the nucleolus.
It is responsible for making ribosomes.

29. VESICLES
It is a small sac that surrounds material to be moved into or out of a cell

30. Thank you