Lower Secondary Science

Secondary 1/2 Level Preferred terms In Osmosis: we prefer the term “water potential” to “water concentration”. For xylem and phloem: we prefer the term vessel than tube. i.e xylem vessel. Active transport, osmosis and diffusion Diffusion Osmosis Active transport Down a concentration gradient ✓ ✓ ✗ Against a concentration gradient ✗ ✗ ✓ Energy needed … Read more

Secondary 1/2 Level What you need to know for this topic: Recognise the importance of food in providing us with nutrients such as carbohydrates, proteins and fats. Describe the roles of the different nutrients in cellular processes such as respiration, growth and tissue repair. Explain the importance of the digestive system in breaking down large, … Read more