Science Flashcards
What is an organism?
Anything that possesses all characteristics of life
What is a cell?
Smallest unit of organization
What is unicellular?
Organisms consisting of only one cell
Ex: bacteria
Multicellular
Organisms consisting of multiple cells
Ex: plants
What are the two basic kinds of reproduction?
Sexual and asexual
What is sexual?
Two cells unite to produce the first cell of a new organism
What is asexual?
A single organism can reproduce without the aid of another
What is growth?
Increase in the amount of living material
What is developpement?
Structural change
What are the characteristics of living thing?
- made from cells
- grows/ moves
- breathes
- dies
- potential
- require and use energy
- react to stimulus
What is photosynthesis?
Process where greeen plants use energy to make sugar and starch from carbon and water
What is heterophobic?
Obtain energy from eating food in their own environment
Where are genes located?
In the chromosomes
What are the similarities and differences called?
Genetic characteristic
Where are the genetic characteristic transmitted
In our genes
What are chromosomes?
Chromosomes contain all the genes required to produce an individual
What are genes?
Small segments with specific locations on the chromosomes
Determines the unique characteristics of a species
What is the difference between plant and animal cells?
Plant cells have chloroplast and a cell wall and they have one large vacuole and animals cells have many small ones
What are organelles?
Tiny organs inside a cell that provides needs for the cell
Cytoplasm
- Jelly like,
- helps hold the organelles in place
- gives the cell structure
- helps move proteins, chromosomes and other materials
What is the cell membrane?
The outside wall of the cell
Allows the cells o move materials in and out
How do cell meme brands allow for the movement of food and waste through the cell?
They come and go through diffusion