The cell membrane or plasma membrane has many functions, but the most basic one is to define the cell’s borders and keep the cell functional. The plasma membrane is selectively permeable. This means that the membrane allows some materials to freely enter or leave the cell, while other materials cannot move freely, but require a specialized […]
Part 3: Structure and function of plasma membrane Read More »
Levels of organization of living things Living things are highly organized and structured, following a hierarchy on a scale from small to large.
Part 2: About the cellular level of organization of living things Read More »
The elements carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus are the key building blocks of the chemicals found in living things. They form the carbohydrates, nucleic acids, proteins, and lipids, which are the fundamental molecular components of all organisms.
Part 1: Chemistry of Life Read More »
As the light at the end of the pandemic tunnel becomes clearer and larger, we all feel a sense of relief every day, as if the weight on our collective shoulders is shrinking a little. This influx of positive energy helped me mobilize and look back at conspiracy theories about the SARS-CoV-2 virus, Covid-19 disease,
The Covid-19 conspiracy theories and how I came to write about biology and genetics Read More »