Introduction to cells - Biology
All living things are made from one or more cells. The nucleus is the control center of the cell. It houses the nucleolus and genetic material (chromatin) used for directing cell functions. Nuclear pores allow materials to pass in and out of the nucleus. The nuclear envelope is a membrane which surrounds and protects the nucleus. The nucleolus produces ribosomes. Ribosomes are factories that produce proteins needed by the cell. Lysosomes contain chemicals (enzymes) that break down and recycle harmful materials.
◂Biology Worksheets and Study Guides High School. Introduction to cells
Worksheet/Answer key
Introduction to cells 
Worksheet/Answer key
Introduction to cells Worksheet/Answer key
Introduction to cells Vocabulary/Answer key
Introduction to cells Vocabulary/Answer key
Introduction to cells Vocabulary/Answer key
Introduction to cells Vocabulary/Answer key
Introduction to cells
Worksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
History and Nature of Science (SG1, SG2,SG3, SG4)
The student demonstrates an understanding of the bases of the advancement of scientific knowledge by using an account of an event to recognize the processes of science used by historically significant scientists (e.g., Goodall, Watson & Crick, Newton).
History and Nature of Science: A student should understand the history and nature of science. A student who meets the content standard should:
Develop an understanding that historical perspectives of scientific explanations demonstrate that scientific knowledge changes over time, building on prior knowledge.