You must complete Tissues and Supporting Systems II to unlock this Lesson.

MICRO-ORGANISMS AROUND US

CONTENT

1. Micro-organisms in Air and Water

(i) Group of Micro-organisms: Bacteria, Viruses, Some algae, Protozoa, Fungi

(ii) The Concept of Culturing

2. Identification of Micro-organisms in (i) Air (ii) Pond Water (iii) River (iv) The Concept of Culturing

3. Micro-organisms in Our Bodies and Food

4. Carriers of Micro-organisms: Examples, Location of the Micro-organism in Carriers and Types of Micro-organism

 

Micro Organisms in Air and Water

Introduction: Micro-organisms are very tiny living organisms are also known as microbes.

T-Lymphocyte Infected With HIV

Human immunodeficiency virus (HIV) is the cause of acquired immunodeficiency syndrome (AIDS). By infecting CD4 T-lymphocytes, a type of white blood cell, HIV weakens the immune system and leaves the infected individual open to deadly infections. The viruses gain access to a T-lymphocyte by attaching to CD4 proteins on the outer surface of the cell membrane.

Microbes

Anthony Van Leeuwenhoek (1632 – 1733) was the first scientist to discover microbes with his newly invented microscope.

Lesson tags: Biology Lesson Notes, Biology Objective Questions, SS1 Biology, SS1 Biology Evaluation Questions, SS1 Biology Evaluation Questions Second Term, SS1 Biology Objective Questions, SS1 Biology Objective Questions Second Term, SS1 Biology Second Term
Back to: BIOLOGY – SS1 > Second Term
© [2022] Spidaworks Digital - All rights reserved.
error: Alert: Content is protected !!