Presents four simple techniques for extracting chlorophyll from leaves.

This resource describes the structure and functions of the cell membrane.

Describes the composition of cytoplasm, its functions, the cell organelles suspended in it and what their functions are, and lots of other information about this vital cell component.

Describes the physical characteristics of June bugs and their life cycle, and provides many other facts about these beetles.

Describes the characteristics of cocci bacteria, their shape, how they arrange themselves in pairs and groups, common forms of cocci, their method of reproduction, and types of cocci that cause diseases in humans. Includes examples of...

Clearly presents the steps in meiosis and mitosis with each step accompanied by an illustrated fact card.

The equation for cellular respiration is given and a diagram is provided that illustrates the process with glycolysis, the Krebs cycle, and the electron transport chain shown. Each of these steps is explained and a summary of the total...

Somatic cells are any cells that are not involved in reproduction and thus cannot be passed on to offspring. This resource discusses mutations in somatic cells, how they occur, how they are detected, and the diseases they can cause in...

Explains what is meant by specialized cells and provides examples for humans and plants.

Biological mimicry is a fascinating subject and Batesian mimicry does not disappoint. It occurs as a protective mechanism when one defenseless species mimics characteristics of a species that can harm or even poison a predator. Examples...

A cell lysis solution is used to disrupt cellular membranes. This resource provides a detailed explanation of how to make a cell lysis solution and describes the different ingredients, their functions, and the choices available, all...

The different types of autophagy are broken down and described, including macroautophagy, microautophagy, and chaperone-mediated autophagy. The role of autophagy in cell death is also discussed.

Discusses the structure of a cell membrane, the role of membrane proteins, and the differences between integral membrane proteins and peripheral membrane proteins as regards to their functions, location, and relationship with the...

Explains the importance of systems of organization in biology and describes the thirteen levels of organization, from the atom up to the biosphere.

Phagocytosis and pinocytosis are two cellular processes that involve endocytosis. Their characteristics and the differences between them are clearly described here.

Explains two types of genetic cross - a reciprocal cross and a test cross. Examples are described for a monohybrid and a dihybrid test cross and for a reciprocal cross.

NADH and NADPH are enzymes involved in cellular processes. Explains how NADH participates in catabolic reactions where energy is released and NADPH is involved in anabolic reactions where energy is consumed. Their functions and chemical...

Describes the anatomy of a frog's digestive system and how the stages in the process of digestion. A comparison is made with the human digestive system.

Describes the parts, structure, and the several methods of reproduction of spirogyra, a type of green algae.

The Northern blot and the Southern blot are two methods used to analyze DNA and RNA. Each technique is described, its purpose, and the methodology. A table comparing features of each is provided.

Explains what Batesian mimicry and Mullerian mimicry are, their similarities and differences, what their cycles look like, and their frequency dependence levels. Provides examples for insects and plants.

Carrier proteins and channel proteins are both involved in cell transport across the plasma membrane. Their functions, similarities, and differences are described in this resource. Includes examples for active, facilitated, and passive...

Provides a comparison of germline and somatic mutations based on cause, heredity, how they are inherited, the effects they have, when they occur, the extent of the occurrence, and how they are detected. Describes examples of both types...

Explains in detail what the lytic and lysogenic cycles of a virus are and the stages of each cycle. Also presents a table highlighting the differences between them.