Organic compounds that cannot be synthesized by an organism but are essential for growth are called

A) Growth factors
B) Limited nutrients
C) Cofactors
D) None of the above


Ans: A) Growth factors

Biology & Microbiology

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One gene is able to encode information for different forms of a protein via ____

a. alternative splicing b. primary splicing c. secondary splicing d. mRNA mutations e. tRNA mutations

Biology & Microbiology

Which of the following contain enzymes and

are the main organelles of waste disposal?

a. Golgi bodies b. mitochondria c. lysosomes d. ribosomes e. endoplasmic reticulum

Biology & Microbiology

Whales and elephants use sound to communicate with which kind of receptor?

a. photoreceptors b. nociceptors c. thermoreceptors d. chemoreceptors e. mechanoreceptors

Biology & Microbiology

During eukaryotic translation, mRNA carries genetic information from the ________ to the ________, where amino acids are assembled into proteins.

a. nucleus; ribosome b. nucleolus; smooth endoplasmic reticulum c. nucleolus; cytosol d. cytosol; nucleus e. nucleus; Golgi apparatus

Biology & Microbiology