Definition: A type of fossil that is big enough to be seen and studied without needing a microscope.

Example: The paleontologist discovered a macrofossil that provided important information about ancient life.

Definition: The larger type of reproductive cell, typically female, in organisms that have two different kinds of gametes.

Example: In many species, the macrogamete is essential for fertilization and the development of the embryo.

Definition: A type of protein found in blood plasma that has a large molecular size and plays a role in the immune system.

Example: Macroglobulin levels can be measured to help diagnose certain medical conditions.

Definition: A large cell produced during the early stages of embryonic development, specifically in the process of cleavage.

Example: In the early stages of development, the macromere plays a crucial role in forming the embryo.

Definition: Relating to large molecules made up of many smaller units, often found in biological systems.

Example: Proteins and nucleic acids are examples of macromolecular structures in living organisms.

Definition: A large molecule made up of many smaller units that are connected together, often found in substances like proteins and plastics.

Example: Proteins are an example of a macromolecule that plays a crucial role in biological processes.

Definition: Relating to a type of nucleus found in certain protozoa that is larger than a micronucleus and is involved in the control of cellular functions.

Example: The macronuclear structure plays a crucial role in the organism's metabolism.

Definition: The larger nucleus found in certain single-celled organisms, which manages the cell's everyday activities like metabolism and growth.

Example: In ciliate protozoans, the macronucleus plays a crucial role in regulating metabolic processes.

Definition: A type of substance that is needed in large amounts for the growth and health of living organisms, including proteins, carbohydrates, and fats.

Example: Proteins, carbohydrates, and fats are all important macronutrients that our bodies need to function properly.

Definition: A type of large cell in the immune system that can engulf and digest foreign substances like bacteria and viruses.

Example: Macrophages play a crucial role in the body's defense against infections.