What types of energy are involved in a chemical reaction? Activation, chemical, released energy:: is the energy required for a chemical reaction to take place, and
Absorbed, Chemical, Released energy:: is the energy associated with every substance.

Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.