_____ are the basic building blocks of life.

Who was the first person to observe cells in a microscope in the 1600s?

Which of the following is not one of the functions cells must perform?

Organelles are the parts of a cell.

What is the layer on the outside of the cell that holds the cell together called?

The cell wall controls the flow of material in and out of the cell.

When the cell lets certain stuff through and keeps other things out it is called?

What is another name for semipermeable?

What type of cells have a cell wall?

A _________ is a tough and rigid outer layer that protects the cell and gives it shape.

Many cell walls (especially in plants) are made of a carbohydrate called ________.

___________ is a jellylike substance inside the cell wall.

What maintains the cell structure and helps things move around in the cell?

What is the cytoskeleton made of?

__________ are the protein-making factories in a cell.

What are an essential part of every cell?

Ribosomes receive directions from ____________________ to make certain proteins.

What is the control center of the cell?

What does the nucleus house, which are strands made of DNA?

What does DNA stand for?

________ is the code for genetic information.

What is the protective double membrane surrounding the nucleus that controls the flow of materials in and out of the nucleus?

What is the small structure found inside the nucleus that makes ribosomes and transports them to the cytoplasm?

What are the temporary storage bubbles for the cells?

Which of the following functions does vacuoles not do?

In animal cells vacuoles are

In plant cells vacuoles are

What digests and destroys dead cells or old cell parts, as well as recycles material to make other cells?

What are the cell's powerhouse?

What releases energy in food by carrying out a reaction with oxygen?

What is the transport facility for the cell?

The endoplasmic reticulum is made of folded membranes.

What are the packaging, sorting, and distributing facility of the cell?

Lysosomes sort proteins and other products from the ER, then package and distribute them to where they need to go.

What are the food production structures that contain chlorophyll?

What is the green pigment that makes plants look green and also uses energy from the sun to change water and carbon dioxide into glucose?

Chloroplasts are found in plant and animal cells.

What type of cells are simple and are found in single-celled bacteria?

What type of cells are more complex and found in protists, fungi, animals, and plants?

A bunch of different cells doing a similar job are called

Tissues work together to form

Organs working together form ___________, such as the digestive or respiratory system.