Chapter 7: Cell Structure and Function

Chapter 7: Cell Structure and Function

Do Now On a sticky note- write down one organelle you know of and its function Place your sticky note on the board Student of the Week

Chapter 7: Cell Structure and Function What are cells??? Cells are the basic units of life.

Cell Theory All living things are made up of cells Cells are the basic units of structure and function in living things

New cells are produced from existing cells Organelles

Eukaryotic cells have specialized substructures, called organelles, carry out the essential functions of life. little organs Chart, flashcards, or notes your

choice! Eukaryotic Cells Animals and Plants Organelles The cytoplasm is the semi-fluid

material that contains the organelles Organelles The cell membrane is the thin flexible barrier surrounding a cell Phospholipid bilayer Regulates what enters and leaves the cell

Selectively permeable membrane Protects and supports the cell Organelles The nucleus contains the chromosomes which are composed of DNA (deoxyribonucleic acid, a chemical compound

that stores and transmits genetic information) and functions as the genetic control center of the cell Organelles A chromosome is a structure in the nucleus of a cell consisting

essentially of one long thread of DNA that is tightly coiled. Organelles The cytoskeleton is a network of fibrous proteins that helps the cell with maintaining shape, support, and

movement. Organelles Endoplasmic reticulum (ER) is a complex, extensive network that transports materials throughout the inside of a cell.

Rough ER has ribosomes attached to the surface. Smooth ER has no ribosomes Organelles

Ribosomes are the sites of protein synthesis; some are located on the ER, others are found in the cytoplasm. Organelles

The Golgi complex/ apparatus modifies, collects, packages, and distributes proteins and other materials to be used within or outside the cell. Organelles

Lysosomes break down lipids, carbohydrates, and proteins into small molecules that can be used by the cell. Organelles Vacuoles store materials like water,

salts, proteins, and carbohydrates. Organelles Vesicles are smaller structures that store and move materials between cell organelles, as well as to and from the cell surface.

Organelles Mitochondria supply the energy for the cell Converts chemical energy stored in food into usable energy for the cell

POGIL Activity Directions Group deliverables: on poster paper Create a chart that matches the part of a

factory to an organelle (this is an analogy!) Use the handout BEFORE you draw on your poster Labeled and colored cell drawing from handout Flowchart (question 9) See Figure 7.11 on Pages 200-201 of your

textbook Individual deliverables: on handout Questions 1-9 Word Bank

Nucleus Cell membrane Vacuole Vesicle Golgi body DNA/chromosomes Cytoplasm Ribosomes

ER Lysosomes Mitochondria Proteins Cellular processes are carried out by molecules. Proteins carry out most of the work

of cells to perform the essential functions of life. One of the major functions of the cell is the production of proteins. The genetic information in DNA provides instructions for assembling protein molecules. In eukaryotic cells the nucleus, ribosomes, endoplasmic reticulum, vesicles, and the Golgi apparatus interact to produce, modify and transport proteins.

Plant Cells Organelles Chloroplasts Organelles

Cell wall Organelles Central Vacuole

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