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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. […]

1.What toxic substance that has a lethal dose of 2,000 to 5,000 ppm to laboratory animals has been detected in smoke from polymeric fires? __________. Which of the following statements about polymer decomposition and combustion is INCORRECT?The surfaces of some polymeric products tend to char as they burn.Burning polymeric products […]