DNA replication of Eukaryotes (cells with a nucleus) occurs stepwise. Each step needs different enzymes. The DNA replication steps can be broken down as: A notch is made by DNA gyrase. This looks like a bubble under a microscope, called Replication Bubble. Cracking up the hydrogen bonds in the double helix is the vital step and it occurs where more A-T bases exist.
Walking - or doing any effort with our muscles with that matter - converts chemical energy into mechanical energy. We get the chemical energy from the food we eat. Walking - â¦ or doing any effort with our muscles with that matter - converts chemical energy into mechanical energy. We get the chemical energy from the food we eat. Walking - or doing any effort with our muscles with that matter - converts chemical energy into mechanical energy. We get the chemical energy from the food we eat.  We get the chemical energy from the food we eat. Walking - â¦or doing any effort with our muscles with that matter - converts chemical energy into mechanical energy. We get the chemical energy from the food we eat.
To use energy and substantially increase the use of fat and carbohydrate, you need to undertake exercise that uses the large muscles of your arms and legs, and to perform it for a prolonged duration. For example, walking, jogging, swimming, cycling or doing aerobics for 30 minutes or more.The biggest factor determining how many calories (that is, the amount of energy) you use during exercise is how much you do. Walking 3 km uses almost the same amount of energy as running 3 km.ogging for 30 minutes will use more energy than walking for 30 minutes, the primary reason being because you will travel a greater distance in 30 minutes of jogging than in 30 minutes of walking. Exercise intensity also influences the proportion of energy that you get from fat and carbohydrate.