Chapter 4 Flashcards
What is an organism?
A complete living thing
What is a cell membrane?
An external boundary around a cell
What is a life span?
Process of birth, growth, reproduction, and death of any organism
What is an environment?
A habitat (where an organism lives)
What is energy?
The ability to do work or activities
What is a cell?
The smallest unit of life
It contains DNA
It’s filled with organelles
Building block of all organisms
What is multicellular?
Term used to describe living things that are made of many cells
What is a tissue?
Group of cells working together
What is an organ?
Two or more tissues that work together
What is a system?
Composed of organs and having specific functions
What is a nucleus pore?
Protein in the nuclear membrane which allows certain which allows certain things to enter the nucleus
What is a chromosome?
Tiny bundle of DNA in the nucleus
What is a mitochondria?
Responsible for producing and releasing energy for the cell to use
What is endoplasmic reticulum?
System of passage that
Classification
Putting organisms into groups based on their similar characteristics
