All but one of the statements below as further evidence in support of the endosymbiosis theory

Nuclear DNA is bundled up in linear strands.

Explanation:

The endosymbiotic theory, popularized by Lynn Margulis in 1981, postulates that mitochondria and plastids, such as chloroplast, originated from small prokaryote organisms that came to live within other larger organisms in a symbiosis relationship.

In this kind of relationship, one organism lives in close association with the other. In endosymbiosis, a smaller organism, called a symbiont, lives within a larger organism, the host, in a mutually beneficial relationship.

As evidence of this theory we can cite:

Mitochondria have their own circular DNA genome. Bacterial DNA is capable of directing protein synthesis and enzyme production. Mitochondria are more closely related to bacterial cells than the eukaryotic cells in which they reside.

The first means of speeding up reactions mentioned by the speaker is raising the enzymes 

Yes yes yes very good