SHS2 Biology · Semester 1 Week 9: Cell Structure and Functions

Lesson notes

Learning Objectives

Indicator: 2.2.1.LI.1 - Apply knowledge of the cell theory and structure to classify and describe the types of cells and relate their structures to their functions.

By the end of the lesson, learners can:

State the three tenets of the cell theory and explain the contribution of at least one scientist to its development.
Classify cells into prokaryotic and eukaryotic types based on the presence or absence of a nucleus and membrane-bound organelles.
Describe the structure and function of key cell organelles, including the nucleus, mitochondria, ribosomes, chloroplast and cell membrane.
Relate the structural features of a given cell type to its specific function (for example, why red blood cells lack nuclei or why root hair cells are elongated).
Construct a simple labelled model or diagram of a plant cell and an animal cell using appropriate materials, showing at least five differences between them.

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Curriculum details

Strand: Life in the Fundamental Unit (Strand 2)
Sub-strand: Cell Structure and Functions (2.1)
Content standard: 2.2.1.CS.1 - Demonstrate knowledge and understanding of Cell structure and Functions. 2.2.1.LO.1 Relate the knowledge and understanding of the cell theory and structure to the different types of cells in all life forms.
Indicator: 2.2.1.LI.1 - Apply knowledge of the cell theory and structure to classify and describe the types of cells and relate their structures to their functions.
Suggested placement: Semester 1, Week 9 (Week 9 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 68

Exemplars (from the NaCCA curriculum)

Project-Based Learning: in randomly formed mixed-ability groups, examine the cell theory and its relevance to organismal life; learners appreciate the social background of every member as learner groups are constituted randomly.
Building on what Others say: apply knowledge in the cell structure as the bases to classify and describe cells and discuss the functions of various types of cells; learners building on the foundations of others realise the efforts and contributions of others and the essence of teamwork in building a healthy academic environment.
Project-based Learning: create prototypes of different types of cells using cardboards, play dough or any other appropriate materials; learners develop a positive outlook about themselves as they are allowed to experience creativity by their own thoughts and opinions.
Teaching and Learning Materials:
- * Textbooks * Models
- * Internet facilities * Other relevant sources
- * LCD projector * Pen drive
Assessment (2.2.1.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.