Enzymes 2) enzymes a) are composed of long chains of fatty acids. b) can be destroyed by variations in temperature or ph. c) are used up, in the process of performing a chemical reaction. d) raise the amount of energy required to start a chemical reaction.

The answer is B, can be destroyed by variations in the temperature.

Answer A is not correct because enzymes are made from protein, not fatty acids.

Answer C is not correct because enzymes are reusable, as their shape of the active site is not hanged by the reaction, thus having the ability to bind into other substrates again and again.

D is not correct because enzymes actually provide a pathway to start a reaction with a lower activation energy, therefore, it does not raise the amount of activation energy.

Answer B is correct because enzymes can be affected by temperature and pH, each type of enzyme only work the fastest at a specific temperature and pH, once the temperature is too high or he pH is too extreme, the active site of the enzyme is altered and thus cannot bind into substrates again. We can them denatured.

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.