Lesson Note on Biology SS1 First Term


Week 1 – Recognizing living things

Week 2 – Living things and non-living things

Week 3 – Classification of living things

Week 4 – Organization of life

Week 5 – Plant nutrition

Week 6 – Nutrient cycling in nature

Week 7 – Nutrition in animals

Week 8 – Mode of nutrition

Week 9 – Basic ecological concept

Week 10 – Growth

Week 11 – Revision

Week 12 – Examination

Week 13 – Examination


SS1 First Term Biology Lesson Note 

Below are the 2022 complete SS1 First Term Biology Lesson Note 

Week 1 – Recognizing Living Things

Overview – The term “Biology” was derived from two Greek words, “Bio” meaning life and “Logos” meaning study. When put together, biology is defined as the study of life or the study of plants and animals. It is a branch of pure science that deals with life. There are several branches of biology – the two common branches are zoology and botany. The study of biology is important in several sectors of an economy, especially in medicine. This week, we shall be introduced to the study of biology, the scientific approach and the usefulness of science. To learn more, Click here…              

Week 2 – Living Things and Non-Living Things

Overview – Living things are organisms that display the characteristics of life while non-living thins do not possess the characteristics of life. These significant characteristics of living things include nutrition, movement, respiration, excretion, growth, irritability, reproduction, adaptation and death. Living things include plants and animals, this week, we shall learn about the differences between plants and animals. We shall also learn about living and non-living things as well as the characteristics of living things. To learn more, Click here…              

Week 3 – Classification of Living Things

Overview – The swedish botanist Carolus Linneaeus came up with taxonomy. Taxonomy involves the naming and classification of living things into groups. He used simple physical characteristics of organisms to identify and differentiate between different species. This week, we shall learn about the classification of living things, the five kingdoms (monera, Protista, fungi, plantae and animalia) and binomial system of nomenclature (naming system of living things). We shall learn about the characteristics of the five kingdoms. To learn more, Click here…  

Biology Lesson Note SS1 First Term


Week 4 – Organization of Life

Overview – Living organisms are highly organized and have complex structure made up of different levels. The levels of organization of living things are – cells which make up the tissues, the tissues make up the organs and the organs make up systems. The different systems in the body make up the organism. The cell is the fundamental unit of life. There are unicellular and multicellular organisms. This week, we shall learn about the levels of organization of life, the complexity of organisms and its advantages and disadvantages.  To learn more, Click here…               

Week 5 – Plant Nutrition

Overview – Plants are living things and like all living things, plants feed. The ability to feed is referred to as nutrition. Most plants are called autotrophs because they manufacture their own foods through a process called photosynthesis. This week, we shall learn about plant nutrition, photosynthesis and the essential conditions needed for photosynthesis to take place. We shall also learn about some experiments to learn about the occurrence of photosynthesis in plants. To learn more, Click here…               

Week 6 – Nutrient Cycling in Nature

Overview – Nutrient Cycle is the movement and exchange of organic and inorganic matter back into the production of living matter. This week, we shall learn about the cycles of several nutrients such as carbon, oxygen and water cycle. We shall learn about the processes and the steps involved in each cycle. To learn more, Click here…               

Week 7 – Nutrition in Animals

Overview – Nutrition in plants is just as important as nutrition in animals. Animals need food for strength, survival and daily activities. Due to the fact that animals cannot manufacture their own food, they are called heterotrophs. Based on what they eat, animals can be classified into three – carnivorous, herbivorous and omnivorous animals. This week, we shall learn about nutrition in animals, the several classes of foods (carbohydrates, fats, fibre, minerals, protein, vitamin, and water) and their sources. We shall also learn about the term “balanced diet” which is a meal that contains all the classes of food in adequate proportions. We shall be introduced to digestive enzymes (enzymes that help in digestion), their classes and their characteristics. To learn more, Click here…               

Week 8 – Mode of Nutrition

Overview – In previous classes, we have learnt that plants are autotrophs and animals are heterotrophs and we know why. This week, we shall become knowledgeable about what autotrophic nutrition and heterotrophic nutrition are. We shall learn about the divisions of autotrophic (holophytic and chemosynthetic) and heterotrophic (holozoic, parasitic, saprophytic, symbiotic and carnivorous) nutrition. To learn more, Click here…               

Week 9 – Basic Ecological Concept

Overview – Ecology is the study of the relationships of living organisms to each other and their surroundings. An ecological system comprises scientific study of the processes influencing the distribution and abundance of organisms, the interactions among organisms, and the interactions between organisms and the transformation and flux of energy and matter. The two branches of ecology are autecology and synecology. This week, we shall learn about ecology and the basic concepts of ecology. We shall also learn about the components of an ecosystem – biotic and abiotic components as well as how they interact. To learn more, Click here…               

Week 10 – Growth

Overview – All living things grow and develop and it all begins with the cells. Cells divide, enlarge and differentiate. Processes of cell division are meiosis and mitosis. Meiosis and mitosis occur in several steps, interphase, prophase, metaphase, anaphase, and telophase. This week, we shall learn about growth in living organisms – cell division, enlargement and differentiate as well as the differences between meiosis and mitosis. We shall also learn about the regulation of growth by hormones. Hormones are chemical substances that are produced and secreted by the endocrine glands. To learn more, Click here…               

Week 11 – Revision

Overview – This week, there will be a revision on all the topics covered this term, from recognizing living things to growth.

Week 12 – Examination

Overview – We shall be examined on all we have learnt this term.

Week 13 – Examination

Overview – This week, we shall be examined on all we have learnt this term.