Life Processes
What does the M in MRS GREN stand for?
Movement
This is the 1st of the three main principles of cell theory.
This is one of the three main principles of cell theory.
Unlike eukaryotic cells, prokaryotic cells do not have this type of membrane-bound structure.
Nucleus
Eukaryotes tend to have less Genetic material than prokaryotes, true or false?
False Why?
This organelle controls the cell’s activities and contains the DNA.
Nucleus
What does the N in MRS GREN stand for?
Nutrition
This is the 2nd of the three main principles of cell theory
2. Cells are the basic units of life.
True or false Prokaryote cells are usually larger than eukaryote cells
What evidence is there that humans are eukaryotes?
anyone of Multicellular, organelles within cells, sexual reproduction
This organelle is the "powerhouse of the cell" because it produces ATP through cellular respiration.
Mitochondria
What does the G in MRS GREN stand for?
Growth
This is the 3rd of the three main principles of cell theory.
3. All cells come from pre-existing cells
Binary fission
Eukaryotic cells contain these specialized structures that perform different functions, like mitochondria and the Golgi apparatus
Organelles
This jelly-like substance fills the cell and holds the organelles in place.
Cytoplasm
What does the S in MRS GREN stand for?
Sensitivity
This German scientist coined the term “cell” when he observed cork under a microscope.
Robert Hooke
These are the two main types of prokaryotic organisms
Bacteria and Archaea
These two types of organisms are made entirely of eukaryotic cells
Plants and animals
This flexible barrier surrounds all cells and controls what enters and exits the cell.
Cell membrane
What does the E in MRS GREN stand for?
Excretion
Is a virus a living thing? Yes or no and why?
Reasons Viruses Are Not Living:
No Cells – They are not made of cells (violates cell theory).
No Metabolism – They don’t carry out chemical reactions on their own.
No Reproduction on Their Own – They must infect a host cell to reproduce.
No Growth or Response – They don’t grow or respond to stimuli like living organisms.
This circular molecule contains the genetic material in a prokaryote.
Plasmid
This organelle, found only in plant cells and some protists, allows eukaryotes to carry out photosynthesis.
Chloroplast
This plant cell structure is a large storage space for water, nutrients, and waste.
Central Vacuole