Definition: Relating to the living substance within a cell, which includes the cytoplasm and nucleus.

Example: The scientist studied the protoplasmic structure of the cell under a microscope.

Definition: A living cell or the material inside a cell, especially in plants, after its outer wall has been taken away.

Example: The scientist studied the protoplast to understand how plant cells function without their walls.

Definition: A type of organic compound that is important in biology, particularly in the formation of heme, which is found in hemoglobin and myoglobin.

Example: Protoporphyrin plays a crucial role in the production of hemoglobin in red blood cells.

Definition: Relating to or having a specific type of plant structure known as a protostele, which is a central cylinder of vascular tissue in some plants.

Example: The protostelic arrangement of the plant's vascular system allows for efficient transport of nutrients and water.

Definition: A type of animal in which the mouth develops from the first opening in the embryo, including groups like mollusks and arthropods.

Example: Mollusks and arthropods are examples of protostomes.

Definition: A type of microorganism that can create its own nutrients from non-organic substances.

Example: The prototroph can thrive in environments where organic nutrients are scarce.

Definition: Describing organisms that can synthesize all the compounds they need for growth from basic nutrients, similar to their natural form.

Example: The prototrophic strain of bacteria can thrive in minimal media without additional nutrients.

Definition: Relating to an original model or first example of something from which others are developed.

Example: The designer created a prototypal version of the new smartphone to test its features.

Definition: A first or early version of something that is used as a model for making later versions.

Example: The engineers created a prototype of the new smartphone to test its features before the final release.

Definition: Relating to a model or example that serves as a standard for others.

Example: The design of the new smartphone is considered prototypic for future models.