Unit 3.2

Mitochondria

bean shaped and have two membranes, and supplies energy to the cell.

What is only found in plant cells?

central vacuole, cell wall, and chloropasts

What is only found in animal cells?

centrioles and lysosome

Golgi Apparatus

consists of closely layered stacks of membrane-enclosed spaces that process, sort, and deliver proteins

In what way are lysosomes, vesicles, and the central vacuole similar?

All are membrane-bound organelles that store or separate certain substances

3 Types of Cytoskeleton Fibers

Microtubules Intermediate filaments Microfilaments

What problems might a cell experience if it had no cytoskeleton?

The cell would be disorganized. It would be weak and might fall apart. The cell would also be unable to move, divide, and transport organelles.

Ribosomes

Tiny organelles that link amino acids together to form proteins

Centrioles

are cylinder-shaped organelles made of short microtubules arranged in a circle; divide DNA during cell division

Lysosomes

are membrane-bound organelles that contain enzymes; they digest and recycle forgien materials or worn-out parts

Chloroplasts

are organelles that carry out photosynthesis

Vacuole

is a fluid-filled sac used for the storage of materials needed by a cell

Cytoskeleton

is a network of proteins that is constantly changing to meet the needs of a cell

Endoplasmic Recticulum

is an interconnected network of thin folded membranes, that aid in the production of proteins and lipids.

Nucleus

is the storehouse for most of the genetic information or DNA

Cell Wall

present in plants,algae,fungi, and most bacteria; a rigid layer that gives protection, support, and shape to the cell.

Vesicles

small membrane-bound sacs that divide some materials form the rest of the cytoplasm and transport these materials from place to place within the cell.