Jews and Gentiles (non-Jews) follow different religions and generally each group does not recognize the validity of the other's religious practices. Although the Christian religions are descended from Judaism, they are not Jewish and do not believe that some of the Jewish practices are correct or necessary, so they don't follow them.
There are also Gentiles who are not Christians. These would include Muslims, Hindus, Zoroastrians, and others. Those Gentiles will not have even so called Noahide Laws.
Note:
"Getting to heaven" is a Christian concept, and is not a Jewish motive for observing the Torah's mitzvot.
Noahide prophets are The Seven Laws of Noah (Hebrew: שבע מצוות בני נח‎ Sheva mitzvot B'nei Noach), often referred to as the Noahide Laws or Noachide Code, are a set of seven moral imperatives that, according to the Talmud, were given by God to Noah as a binding set of laws for all mankind.[1] According to Judaism any non-Jew who lives according to these laws is regarded as a Righteous Gentile and is assured of a place in the world to come (Olam Haba), the Jewish concept of heaven.[2] Adherents are often called "B'nei Noach" (Children of Noah) or "Noahides" and may often network in Jewish synagogues.
mitzvot = מִצְווֹת
== == : See also Oral law; Halacha l'Moshe m'Sinai; Relationship between the Bible and the Mishnah and Talmud. Broadly, the Halakha comprises the practical application of the commandments (each one known as a mitzvah) in the Torah, as developed in subsequent rabbinic literature; see The Mitzvot and Jewish Law. According to the Talmud (Tractate Makot), there are 613 mitzvot ("commandments") in the Torah; in Hebrew these are known as the Taryag mitzvot תרי"ג מצוות. There are 248 positive mitzvot and 365 negative mitzvot given in the Torah, supplemented by seven mitzvot legislated by the rabbis of antiquity; see Rabbinical commandments. http://en.wikipedia.org/wiki/Mosaic_law#Laws_of_the_Torah
"the 613 Mitzvot," or "Halacha"
The mitzvot (Torah-commands).
There is no ranking of the mitzvot.
A mitzvah is a good deed. The plural of mitzvah is mitzvot.
Rashi (Bamidbar, 15;41) relates that the mitzvot of Shabbat and Tzizus are as important as all of the other commandments. Additionally, the Gemara (Peah, 1;1) states that the study of Torah is equal to all the other mitzvot. Furthermore, the Gemara (Bava Batra, 9a) states that the mitzva of tzedaka is equal to all the other mitzvot. Moreover, the Tosefta (Avodah Zarah, 5;2) learns out that the mitzvah of living in Israel is equal to all the other mitzvot. Even further, the Gemara (Nedarim, 32a) states that the mitzvah of bris milah is equal to all the other mitzvot in the Torah. Lastly, many commentators learn out from the Gemara (Avodah Zarah, 3a-3b) that the mitzvot of Sukkah is equal to all the other mitzvot as well. We therefore have 7 mitzvot which are equal to all the other commandments in the Torah: 1) Shabbat, 2) Tzizus, 3) Torah Study, 4) Tzedaka, 5) Living in Israel, 6) Bris Milah, 7) Sukkah.
Mitzvot.
Tradition holds that there are 613 mitzvot in the Torah.
To keep all 613 of the mitzvot in the bible.
These are the 613 commandments that were given by God to the Jewish people.