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Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
Quizlet: No No No No Yes Yes No No No Yes No No SuperMemo: Yes No No No Yes Yes No Yes No Yes No Yes Topgrade: Yes Yes Yes Yes Yes Yes Yes Yes No Yes No No Software Microsoft Windows. macOS. ChromeOS. Linux. Android. iOS (iPhone, iPod Touch, iPad) BlackBerry. Windows Mobile, Pocket PC Maemo. Web browser J2ME. Palm OS
Humans require thirteen vitamins in their diet, most of which are actually groups of related molecules (e.g. vitamin E includes tocopherols and tocotrienols): [20] vitamins A, C, D, E, K, thiamine (B 1), riboflavin (B 2), niacin (B 3), pantothenic acid (B 5), pyridoxine (B 6), biotin (B 7), folate (B 9), and cobalamin (B 12). The requirement ...
Vitamins have diverse biochemical functions. Vitamin A acts as a regulator of cell and tissue growth and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for bones and other organs. The B complex vitamins function as enzyme cofactors (coenzymes) or the precursors for them.
Vitamin B 11: pteroylheptaglutamic acid (PHGA; chick growth factor). Vitamin Bc-conjugate was also found to be identical to PHGA. Derivative of folate ("pteroylmonoglutamic acid" in this nomenclature). [43] Vitamin B 13: orotic acid. [44] Vitamin B 14: cell proliferant, anti-anemia, rat growth factor, and antitumor pterin phosphate, named by ...
A flashcard or flash card is a card bearing information on both sides, usually intended to practice and/or aid memorization. It can be virtual (part of a flashcard software ) or physical. Typically, each flashcard bears a question or definition on one side and an answer or target term on the other.
Thiamine, also known as thiamin and vitamin B 1, is a vitamin – an essential micronutrient for humans and animals. [1] [3] [4] It is found in food and commercially synthesized to be a dietary supplement or medication. [1] Phosphorylated forms of thiamine are required for some metabolic reactions, including the breakdown of glucose and amino ...
Some research shows that most people in the United States and the United Kingdom consume sufficient vitamin B 12. [2] [11] However, other research suggests that the proportion of people with low or marginal levels of vitamin B 12 is up to 40% in the Western world. [2] Grain-based foods can be fortified by having the vitamin added to them.