BIOLOGY GRADE 10 – 12 REVISION QUESTIONS AND ANSWERS

Biology-Grade-10-12-Revision-Question-and-Answers

Introduction I. PRINCIPLES OF BIOLOGY Chapter 1 – Cells and tissues Questions Chapter 2 – Cells and tissues Answers Chapter 3 – The chemicals of living cells Questions Chapter 4 – The Chemicals of living cells answers Chapter 5 – Respiration Questions Chapter 6 – Respiration answers Chapter 7 – How Substances Get in and Out of Cells Questions Chapter 8 – How Substances Get in and out of Cells Answers Chapter 9 – Photosynthesis and Nutrition in Plants Questions Chapter 10 – Photosynthesis and Nutrition in Plants Answers II. Read More …

Biotechnology

Biotechnology

Biotechnology is a broad discipline in which biological processes, organisms, cells or cellular components are exploited to develop new technologies. New tools and products developed by biotechnologists are useful in research, agriculture, industry, and the clinic. The wide concept of “biotech” or “biotechnology” encompasses a wide range of procedures for modifying living organisms according to human purposes, going back to domestication of animals, cultivation of the plants, and “improvements” to these through breeding programs that employ artificial selection and hybridization. Modern usage also includes genetic engineering as well as cell and tissue culture technologies. The American Chemical Society defines biotechnology as the Read More …