Single-Celled Organisms
What are single-celled organisms?
Unicellular
What is the nucleus?
The structure that contains chromosomes and dna
What is cellular respiration?
When cells convert glucose and oxygen into energy
How are bacteria and humans similar?
both have DNA
What is a cell?
the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
What are essential life functions of single-celled organisms?
Digestion, Excretion, Respiration
What is the function of the mitochondria?
To generate the cells energy
What do vacuoles do?
storage, waste management
What do all cells have?
cell membrane,cytoplasm,DNA, ribosomes
What is tissue?
a group of cells that have similar structure and that function together as a unit
Why do single-celled organisms need moist environments?
Water is essential for basic cellular functions
What is the function of ribosomes?
to make proteins
What is the role of the cell membrane?
controls what enters and exits the cell
What do plant cells and bacteria have in common? They both have...
cell walls
What is an organ?
a collection of tissues that structurally form a functional unit specialized to perform a particular function
How do single-celled organisms survive without organs?
The Semi-Permeable cell membrane lets nutrients in through diffusion
What is the role of chloroplasts?
carry out photosynthesis
What is the function of the cytoplasm?
allow transport, maintain cell shape and structure, protection, storage and acts as the host to metabolic processes.
How do plant cells differ from animal cells?
plant cells have chloroplasts, cell wall, vacuole
What is an organ system?
group of organs that work together
What organelle allows a single-celled organism to carry out life functions?
Mitochondria
What is the difference between prokaryotes and eukaryotes?
prokaryotes=no nucleus
eukaryotes= nucleus
How do cells release energy from carbohydrates?
cellular respiration
How do cells in multicellular organisms function?
divide work.
What is an organism?
a living thing that can function independently and maintain life