B1 and B2 Flashcards
(23 cards)
What two types of cells can organisms be?
Prokaryotic or Eukaryotic
What are living things made out off?
Cells
What are Eukaryotic cells?
With eg
They are complex cells an include animal and plant cells
What are Prokaryotic cells?
With eg
They are smaller simpler cells
E.g bacteria
What are Eukaryotic organism made out of?
Eukaryotic cells
What is a prokaryote made out of?
One prokaryotic cell (they are single-celled organisms.
What are the different parts of the cell called?
The subcellular structures
Nucleus
Contains genetic materials that controls the activities of the cell
Cytoplasm
Gel-like substance where most of the chemical reactions happens. It contains enzymes that controls these chemical reactions.
Cell membrane
Holds the cell together snd control what goes in and out
Mitochondria
These are were most of the reactions for aerobic respiration takes place. Respiration transfers energy that the cell needs to work
Ribosomes
These are where proteins are made in the cell
Rigid cell wall
Made from cellulose. It supports the cell and strengthens it
Permanent vacuole
Contains cell sap, a weak solution of sugar and salts.
Chloroplast
Where photosynthesis occurs, which makes food for the plant. They contain a green substance called chlorophyll, which absorbs the light needed for photosynthesis.
How would you describe bateria cell in size compared to animal and plant cells
Much more smaller
What does a bacteria cell contain?
Cytoplasm, cell wall, cell membrane, a singular circular stand of DNA and may also have a one or more small rings of DNA called plasmids.
What is the definition of diffusion?
Diffusion is the movement of particles from nanarea of high concentration to low concentration
What kind of process is defussion?
A passive process (ni energy required).
Does active transport require energy?
Yes
What does Active transport allow?
Substances to move into cells against consentrated gradients.
How does a cell release engery?
Throught respiration
What does cells use active transport (one example)
Active transport is a process used by cells to move minerals in to the membranes of the cells.
The way they get the minerals to move from a low conc to a high conc by active transport, which takes energy.
