Cell Structures 1
Cell Structures 2
Cell Structures 3
Cells Working Together
Vocabulary
100
A thin layer that controls which substances pass into and out of a cell.
What is the cell membrane?
100
A small, round structure where ribosomes are made.
What is the nucleolus?
100
A structure that contains substances that break down large food particles into smaller ones.
What are lysosomes?
100
The smallest unit of an organism.
What is a cell?
100
Name for organisms composed of only one cell.
What is unicellular?
200
A gel-like fluid that moves constantly within a cell, carrying along the nucleus and other organelles that have specific jobs.
What is the cytoplasm?
200
Small, grain-shaped organelles that produce proteins.
What are ribosomes?
200
A fluid-filled sac floating around the cell which stores food, water, and other materials needed by the cell.
What is a vacuole?
200
A group of organ systems working together to perform a specific function.
What is an organism?
200
Name for the structures found within the cell.
What are organelles?
300
A large oval structure that acts as the cell's control center, directing all of the cell's activities.
What is the nucleus?
300
A rod-shaped structure that converts energy stored in food to energy the cell can use. Often called the "powerhouse" of the cell.
What is the mitochondria?
300
A rigid structure that surrounds the cell membrane in plant cells which helps support the cell.
What is the cell wall?
300
A group of organs working together to perform a specific function.
What is an organ system?
300
Name for organisms composed of many cells.
What is multicellular?
400
A membrane that surrounds the nucleus that allows materials to enter through pores.
What is the nuclear membrane/envelope?
400
A maze of membranes that produce many substances including the assistance in the production of proteins.
What is the endoplasmic reticulum?
400
A green structure which captures sunlight and transforms it into food for a plant.
What is a chloroplast?
400
A group of similar cells working together to perform a specific function.
What is a tissue?
400
The type of pigment found in the chloroplasts of plant cells that give plants their green color.
What is chlorophyll?
500
Thin strands of material found in the nucleolus that contain information for directing a cell's functions.
What is chromatin?
500
Flattened tubes that receives proteins, stores them, packages them, and distributes them to other parts of the cell.
What is the Golgi Apparatus?
500
The basic unit of structure and function within an organism.
What is a cell?
500
A group of tissues working together to perform a specific function.
What is an organ?
500
Name for cells that have very specific functions that benefit the entire organism. (Ex: red blood cells)
What are specialized cells?
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