Emma's got the lowdown on surface area to volume ratio for your AP Biology exam. She goes through the different adaptations of cells, organs and organisms to maximise the surface area to volume ratio. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma looks at ribosomes and the endoplasmic reticulum, as well as golgi apparatus and lysosomes. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma's back with everything you need to know about the importance of cell size for your AP Biology exam. She looks at the effect of cell size on diffusion and transport of nutrients. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma goes through everything you need to know about cells, from their size to their common ancestry. She also looks at two main types of cells, prokaryotes and eukaryotes, highlighting their key features. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

In this episode, Emma looks at the structure and function of phospholipids, like their hydrophillic heads and hydrophobic tails. She also looks at steroids and sterols, which are a type of alcohol, such as cholesterol. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma's got the lowdown on all things fat and wonderful. She looks at the structure and function of triglycerides and fatty acids, as well as saturated and unsaturated fatty acids. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

In this episode, Emma looks at carbohydrates. From the simplest carbs (monosaccharides) to familiar sugars (disaccharides like fructose and lactose) to complex carbs called polysaccharides. She takes a closer look at starch, including a closer look at those glycosidic bonds. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma looks at the tertiary and quaternary structure of proteins. She looks at the different structures for the different functions of insulin, hemoglobin and collagen molecules. She also looks at globular and fibrous proteins, and how they are suited for their purposes. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma looks at the primary and secondary structure of proteins, like the amino acid sequence and how this causes Sickle cell anemia. She also looks at the alpha-helix and beta-pleated sheet structure of proteins. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ ..read more

Emma looks at the structure of the HIV virus, and the effect it has on an infected human. She also looks at the onset and symptoms of AIDs, as well as potential research routes for prevention and treatment. Ideal for preparing you for your SAT Biology Exam. Click here for the full course, or visit this link: http://bit.ly/2TwWyjJ -  ..read more