Life Science Principles Flashcards
Organism
A living thing
Cells
All living things are made of cells
Bacteria Organism
Have one simple cell
Complex Organisms
Animals and Plants
Have many different kinds of cells (trillions)
Animals Cells
Different Cell: blood, bone, muscle, nerve cells
All these different types of cells look different and have a different function
Such as: blood cells carry oxygen to other cells
Plant Cells
Leaf and root cells
All these types of cells look different and have a different function
Membrane
Controls what moves in and out of the cell
Nutrients in, waste out
Osmoses
Type of movement
Water passes through the membrane to even the concentration (proteins) on both sides
Diffusion
Molecules move from a place where they are highly concentrated to one where concentration is lower.
move high to low
opposite of active transport
Active Transport
Where materials move with the help of protein energy
from low to high concentration
Opposite of diffusion
Nucleus
The DNA, Is the Brain
Cytoplasm
All the jellylike substances outside of the nucleus
Where organelles are.
Mitochondria
Make energy in the form of ATP
Organells include mitochondria
Organelles
Smaller structures within the cell that have specific rolls
Organelles include mitochandria
Ribosomes; Lysosomes
Hold enzymes that can break down molecules
(As in Digestion)
ATP protein-making ribosomes and lysosomes