Parts of an Animal Cell Cells are the basic building blocks of all living things. A cell is the smallest part of a living thing that can carry out all the processes of life. Most cells are too small to be seen without a microscope. Animals are made up of many different kinds of cells. For example, muscle cells help animals move. Bloods cells carry oxygen to other cells. Nerve cells help send signals between the brain and other parts of the body. But all animal cells have the same main parts. Draw Conclusions Why can’t animal cells use sunlight to make food? They lack chloroplasts. Definition: chloroplast- organelle that makes food from sunlight, water, and carbon dioxide Parts of an Animal Cell Animal Cell Cell Structures and their Function Plant Cell Animal Cell Cell Structure Function Mitochondria Provide Energy Vacuoles Store Materials Nucleus Cell Control Center; Reproduction Cell membrane Structure and Transport Golgi Bodies and Endoplasmic Reticulum Transport Plant Cell chloroplast- organelle that makes food from sunlight, water, and carbon dioxide cytoplasm – gel-like material that surrounds the internal parts of the cell diffusion – process that spreads substances through a gas or liquid. nucleus – cell structure that directs cell activities and carries genetic information organelle – structure that has specific job within the cell osmosis – type of diffusion that allows water to pass across a membrane Parts of a Cell Plant and animal cells have many things in common. Like animal cells, plant cells have a cell membrane, cytoplasm, a nucleus, and organelles. Plant cells also have two parts not found in animal cells: a cell wall and chloroplasts. A cell wall is a stiff covering outside of the cell membrane. The cell wall gives the cell extra strength and support. Cell walls help plants stand upright and support heavy structures such as leaves and flowers. Because cell walls are rigid, or stiff, most plants cells have a boxy shape with fairly straight sides. Draw Conclusions What is the function of a cell? To carry out activities that the organism needs to live. Definition: function - a. Assigned duty or activity. b. A specific occupation or role Parts of a Plant Cell Plant Cell Cell Part Function Nucleus Controls most cell activities Contains genetic material Cell membrane Protects Cells Controls what enters and leaves the cell Cell wall Supports cell Cytoplasm Contains organelles Chloroplasts Uses sun’s energy to make food for cell Plants Animals 1. Which structure is the control center of a cell? A nucleus B cytoplasm C cell membrane D organelle 1. Which statement is TRUE? A B C D A plant cell has a nucleus, but an animal cell does not. A plant cell has a cell membrane and a cell wall. An animal cell has a cell membrane and a cell wall. An animal cell has a cell membrane and chloroplasts. 1. What is the function of the cell membrane? A B C D to support the cell to contain cell organelles to make food for the cell to control what enters and leaves the cell 1. Which of these is NOT made of cells? A B C D a rock a piece of wood an earthworm a fern