Science | Senioritis

Mohamed Abbas
June 21, 2023
Biophysics

Overcoming the Hydrophobic Barrier: Transport of Water-Soluble Molecules and Ions Across a Lipid Bilayer

Recall why water-soluble molecules and ions have difficulty crossing a lipid bilayer. ions are least permeable. Only transported through channel or transporter Water soluble molecules are semi...

Mohamed Abbas
June 21, 2023
Biophysics

Passive Transport: Simple Diffusion vs Facilitated Transport Mechanisms

Distinguish between simple diffusion and facilitated transport. Simple diffusion: moves down the concentration gradient (example nonpolar molecules can do this)Facilitated transport: materials move down concentration gradient with...

Mohamed Abbas
June 21, 2023
Biophysics

Optimizing Solute Diffusion: Properties Governing Lipid Bilayer Permeability

Review the properties that govern the rate at which a given solute can cross a protein-free lipid bilayer. depends on size + solubility: small, non polar, hydrophobic...

Mohamed Abbas
June 21, 2023
Biophysics

Differences between Membrane Transport Proteins: Transporters vs. Channels

State the function of membrane transport proteins and differentiate between transporters and channels. transporter: transfer molecules or ions that fit. Specificity Channel: passageway for certain hydrophilic molecules...

Mohamed Abbas
June 21, 2023
Biophysics

Importance of Ion Concentration in Cellular Physiology

Indicate how the concentration of ions in the cell differs from that outside the cell. Intracelluar:Na+: 15 mMK+= 150 mMCl-= 7 mMExtracellular:Na+=145 mMK+= 5mMCl-= 100 The concentration...

Mohamed Abbas
June 21, 2023
Biotechnology

Expanding Horizons of Biotechnology: From GMOs to Gene Editing

biotechnology the use of biology to develop new products, methods and organisms intended to improve human health and society Biotechnology is the application of biological processes, organisms,...

Mohamed Abbas
June 21, 2023
Biotechnology

Revolutionizing Science: Discovering the Potential of DNA Technology

DNA technology sequencing and manipulating DNA DNA technology refers to the methods and techniques used to manipulate DNA (deoxyribonucleic acid) in order to study, diagnose, treat, or...

Mohamed Abbas
June 21, 2023
Biotechnology

Genetic Engineering: Techniques, Applications, and Concerns

genetic engineering the direct manipulation of genes for practical purposes Genetic engineering is the process of manipulating an organism’s DNA or genetic makeup in order to introduce...