Grade 10: Cells as the basic Unit of Life.

Introduction

https://youtu.be/lxnWHP39W2U

Task

 

Assignment :Marks 30

Question 1: Provide the correct biological terms for the following;

1.1. the basic unit of life. (2)

1.2. a group of cells with the same structure that perform the same function. (2)

1.3. a cell that consist of a chloroplast. (2)

1.4. an organelle that helps provide cells with energy and releases energy. (2)

1.5. an organism doesn't possess a cell wall. (2)

Question 2: Use the following link to assist you. https://images.app.goo.gl/VqtKu8CXkpDzsF4e7

Label the diagrams (10)

Question 3:

3.1. Tabulate 5 differences between a plant and animal cell. (7)

3.2. Give the functions of the following organelles.

3.2.1. Mitochondria (1)

3.2.2. Vacuole (2)

                                                                                                                                           Total: 30 Marks

 

 

 

 

 

 

 

 

 

Process
  • You will be able to define the term cell as the basic unit of all living organisms.
  • Will be able to label the different organelles that are present in a plant and animal cell.
  • Will be able to recognize the difference between plant and animal cell.
Characteristics Plant cell Animal Cell
Shape Have a rigid regular shape Have an irregular  shape
Cell wall Present with a cell membrane No cell wall present but a cell membrane
Vacuole Big vacuoles present Have small vacuoles which are sometimes temporary or absent 
Chloroplast Present for photosynthesis Absent

 

Evaluation

Memorandum

Question 1:

1.1. Cells (2)

1.2. Tissue (2)

1.3. Plant cell (2)

1.4. Mitochondria (2)

1.5. Animal cell (2)

Question 2:

A - Cell membrane (1)

B - Cell wall (1)

C - Cytoplasm (1)

D -  Vacuole (1)

E - Nucleus (1)

F - Chloroplast (1)

G - Golgi Apparatus (1)

H - Mitochondria (1) 

I - Rough ER (1)

J - Micro Tubules (1)

Question 3:

3.1. 

Plant cells Animal cells
Larger Smaller
Cell wall No cell wall
Nucleus on the side Nucleus in the center
One vacuole Many vacuoles
Has plasmodesmata No plasmodesmata

(7) 

3.2.1. Generate the energy needed to power cells. (1)

3.2.2. In animal cells vacuoles help sequester waste products and in plant cells it maintain water balance. (2)

Total: 30 Marks

 

 

 

Conclusion

In this lesson you have learnt about the subcellular parts of cells and how they function. Also that cells in multicellular organisms perform different functions. This lesson has provided you with the basic understanding of cellular architecture and it's relationship with the different processes and functions it performs. In conclusion of this lesson it is evident that cells are the basic unit of life.

Credits