1 The nature and variety of living organisms Flashcards
Define eukaryotic cells
a type of cell found in animal, plant, fungi and protoctist cells that contain a nucleus
Define prokaryotic cells
a type of cell found in bacteria/ prokaryotes that don’t contain a nucleus
What is the acronym that all living things must meet to be classed as living?
MRS H GREN
What does M stand for in MRS H GREN?
Movement
What does R stand for in MRS H GREN?
Respiration
What does S stand for in MRS H GREN?
Sensitivity and ability to respond to changes to environment (stimuli)
What does H stand for in MRS H GREN?
Homeostasis
What does G stand for in MRS H GREN?
Growth (increasing mass and/ or volume by cellular division)
What does R stand for in MRS H GREN?
Reproduction
What does E stand for in MRS H GREN?
Excretion
What does N stand for in MRS H GREN?
Nutrition
What does an animal cell contain
cell membrane, cytoplasm, mitochondria, ribosomes, nucleus
What characteristics do/can the organisms in the animal kingdom have?
All multicellular, obtain nutrients by eating other organisms, no chloroplasts, no cell wall, have a nervous system to respond to its environment and stores carbohydrates as glycogen
What does a plant cell contain
cell membrane, cell wall, cytoplasm, nucleus, vacuole, mitochondria, ribosomes, chloroplasts
What characteristics do/can the organisms in the plant kingdom have?
All multicellular, obtain nutrients by photosynthesizing so also have chloroplasts to do this, have a cell wall made of cellulose and store carbohydrates as starch or sucrose