Q1. Why water is known as polar solvent? How is hydrogen bonding involved in cohesive attraction of water molecules? Water molecules also attract other sorts of molecules, particulary ions.Why is this? Q2. A scientist produces an artificial membrane from phospholipids and notices that oxygen, but not glucose readily moves through […]

The cathas 36 pairs of chromosomes in its somatic cells.(a) Howmany chromosomes are present in a cat’s spermcells? (b) Howmany sister chromatids are present in a cell that is entering thefirst meiotic division? (c) In a cell that is entering the secondmeiotic division? Facts and concepts:1. Chromosomes come in pairs […]

1. Why do you think you will benefit from a general knowledge of biochemistry? 2. Water, H2O, is a simple molecule. Briefly explain why you think water is so important to life? Do you think the water needs are different for an elephant compared to E. coli or humans? Explain. […]

Not much more than 100 years ago, ordinary citizens were unaware of the role of microorganisms in the cause and spread of disease. In her book, “The Gospel of Germs”, Nancy Tomes describes the development of our collective cultural obsession with germs. To quote her book, “The rituals of germ […]