Located at label C, the (a)   is the control center of the cell. It contains thread-like structures called chromosomes, which are made of DNA and contain gene information, to be passed down from one generation to the next.

Located at label D, the __________ is a network of membranes throughout the cytoplasm of the cell. There are two types, rough and smooth. The rough __________ is where most protein synthesis occurs in the cell. The smooth __________ makes lipids in the cell and also helps to process or detoxify harmful substances found in the cell.

(a)  

Located at label F, the (a)   is a disc-like structure that contains a green pigment called chlorophyll. Chlorophyll captures light so that plants can make food during photosynthesis.

Located at label G, the (a)   sorts and ships the proteins produced in the endoplasmic reticulum (ER).

Located at label H, the __________ is a strong and stiff structure made of cellulose. It provides protection and support the cell, giving it a regular shape. Unlike cell membranes, materials cannot get through __________s.

(a)  

Located at label J, the __________ is the watery fluid that surrounds all the organelles. New materials are constantly being made and broken down here. Lots of organelles must travel to different parts of the cell through the __________

(a)  

Located at label A, the (a)   contains large amounts of water and stores other important materials.

Located at label B, the (a)   is the powerhouse of the cell. These organelles convert food into energy that the cell can use.

Located at label E, some __________s are found in the cytoplasm, but most are attached to the endoplasmic reticulum (ER). While attached to the ER, __________s use a form of DNA instructions to make proteins.

(a)  

Located at label I, the (a)   is a thin layer that separates the inside of the cell from the rest of its environment, controlling what enters and leaves the cell.