Biological Classification and Processes

These flashcards cover key biological terms and concepts related to organism classification, life processes, and pathogens.

MRS C GREN

An acronym representing the seven life processes: Movement, Respiration, Sensitivity, Control, Growth, Reproduction, Excretion, and Nutrition.

Movement

Change of place or position by an organism.

Reproduction

The process of making more of the same organism.

Sensitivity

Detecting changes in the environment and responding to them.

Control

The process whereby an organism keeps certain internal conditions at a constant level.

Growth

An increase in size or cell number.

Respiration

A chemical reaction which releases energy within cells.

Excretion

The removal of waste products like urea.

Nutrition

The process of obtaining food necessary for growth and repair.

Pathogen

A microorganism or virus that causes disease.

Bacteria

Unicellular organisms that have a cell wall but do not have a nucleus.

Protoctists

Unicellular organisms that may have characteristics similar to plants or animals.

Virus

A non-living entity that can replicate only inside a host cell and causes disease.

Saprotrophic nutrition

Nutrition obtained by feeding on decaying organic matter.

Athlete's Foot

A disease caused by a fungus.

Plasmids

Extra rings of DNA found in some bacterial cells.

DNA

Deoxyribonucleic acid, a molecule that carries genetic information.

RNA

Ribonucleic acid, a molecule involved in protein synthesis and gene expression.

Capsids

Protein shells that enclose viral genetic material.