Nature and Variety of life Flashcards
What are the 8 life processes? (Clue: MRS H GREN)
Movement, Reproduction, Sensitivity, Homeostasis, Growth, Respiration, Excretion, Nutrition
Define movement
Ability to change location or position
Define reproduction
New individuals are made
Define sensitivity
Ability to detect and respond to changes in enviroment
Define homeostasis
Ability to control internal conditions
Define growth
Increase in mass or volume of an organism by process of cell division
Define respiration
How organisms release energy from food
Define excretion
How organisms rid themselves of waste products from cells
Define nutrition
When organisms acquire materials needed to carry out all other living processes
What are the 6 kingdoms of life?
Animal, Plant, Bacteria, Protoctista, Fungi, (Viruses)
State the levels of organisation (Clue: Atom…)
Atom, Molecule, Macromolecule, Organelle, Cell, Tissue, Organ, Organ system, Whole organism
What do animal cells store carbohydrates as?
Glycogen
Are animal cells Heterotrophic or Autotrophic?
Heterotrophic
Are animal cells multicellular or unicellular?
Multicellular
What does Heterotrophic mean?
Consumes other organisms
What does Autotrophic mean?
Makes their own food
Are plant cells multicellular or unicellular?
Multicellular
Are plant cells Heterotrophic or Autotrophic?
Autotrophic
What is a plant cell cell wall made of?
Cellulose
What do plant cells store carbohydrates as?
Starch
Are bacteria multicellular or unicellular?
Unicellular
What do bacteria not have which most other kingdoms do have?
They have no nucleus
What is a bacterias cell wall made of?
Polysaccharides and proteins
Are bacteria Heterotrophic or Autotrophic?
Both
Are protoctista multicellular or unicellular?
Unicellular
What do all protoctista have?
Cell membrane, Nucleus and Cytoplasm
Are protoctista Heterotrophic or Autotrophic?
Either Heterotrophic or Autotrophic (E.G Some have chloroplast and others behave more like animal cells)
Are fungi Multicellular or Unicellular?
Either Multicellular or Unicellular
What do fungi not have?
Chloroplast
Are fungi Heterotrophic or Autotrophic?
Heterotrophic
What is fungi cell walls made of?
Chitin
What are carbohydrates stored as in fungi cells?
Glycogen
What are viruses not which every other kingdom of life is?
Viruses are not a cell
What are viruses?
Genetic material surrounded by a protein coat
Here are some pictures of cells?

Here are some pictures of cells.

Give three reasons why viruses are not classified as living organisms?
- They can only reproduce inside the cells of other organisms
- They do not excrete
- They do not respire