20 Biology Tutorials

These Biology tutorials are written by experienced educators, all of whom also offer private tutoring lessons. Get the Biology help you need, whether through these tutorials or through private tutoring lessons.

Cell Biology – Practice Questions

These questions are meant for beginner students in undergraduate level cell biology. These are review questions based on material in the first four chapters in “Essential Cell Biology” – See link below.

Biodegradable Veggie Pots: The Art & Sustainability of Making Seed Starting Pots

Vegetable gardening is not just about growing and eating vegetables. Students will learn how their creation of biodegradable pots provides a positive impact in a vegetable garden environment. 1. Learn about biodegradability and the degradation processes. 2. Understand the positive environmental impacts biodegradable objects. 3. Be empowered to grow and secure their own garden vegetables…

Cellular Respiration (Some Background Knowledge Required)

Cellular Respiration is the process by which O2 (oxygen) and C6H12O6 (glucose) is converted into CO2 (carbon dioxide), H2O (water), and ATP–the energy currency of the cell. This process is divided into three stages: 1). Glycolysis 2). Citric Acid Cycle 3). Electron Transport Chain. During Glycolysis, which occurs in the cytoplasm, glucose is split into…

Bipedial development

Bipedal animals are distinctly classified due to the anatomy of the pelvis and foot. This feature is found within the primate order and includes Homo sapiens and other extinct relatives including Homoerectus. The pelvis of a bipedal is shorter in stature and more cup or bowl-shaped compared to other primates. These unique characteristics allow for…

Omnivores, Herbivores and Carnivores

Teeth can tell us a lot about the characteristics of an organism. Certain animals have teeth that are meant to pierce and rip apart flesh. Other animals have a large number of teeth that grind plant matter. Some animals will fall in between these two possibilities which allows them to perform both functions. Omnivores are…

Concentrations

The concentration of a solution is usually expressed as 1M, or 1 mole/L, where one mole is is the formula weight (grams) of a molecule dissolved in one liter of water at standard temperature and pressure. The capital M can be expressed as mM (millimoles), uM (micromoles), nM (nanomoles) and smaller. Concentration is sometimes expressed…

What is Really Going on in Mitosis and Meiosis?

Mitosis and meiosis are processes repeatedly visited in biology, and both are important for understanding Mendelian inheritance patterns. These two processes are made up of four basic stages – prophase, metaphase, anaphase, and telophase. It may be simple enough to memorize these names, but what really matters is understanding what happens to the chromosomes in…

Decoding Pedigrees Made Easy!

At first, pedigree charts may appear both challenging and time-consuming to decipher. However, knowing a few simple rules about them makes interpreting them much easier! Pedigrees are records of mating over generations. They are often used to help identify the chances that a couple will pass a condition on to their children. They can also…

Protein Synthesis

How do we make the proteins we need to live? You may recall that DNA codes for proteins, that is, the sequence of the DNA nucleotides has the directions to make every protein we must have. In high school biology, you will be given a sequence of DNA bases and a codon chart with the…

Genetics: Non-Mendelian Traits

Genetics is the study of genes from one generation to the next. Gregor Mendel is the Father of Genetics, and his experiments with pea plants provided insight into how traits pass from parents to offspring. We now know that our chromosomes, which are made of DNA, work in pairs. That means that for any gene,…

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