Which of the following is a function of the plasma membrane?

A) regulate the traffic of chemicals in and out of the cell
B) regulate the production of lipids in the cell
C) regulate the production of DNA in and out of the nucleus
D) regulate the production of proteins in the cell


A

Biology & Microbiology

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The nucleus is to eukaryotes as the ________ is to prokaryotes.

A. pili B. glycocalyx C. ribosome D. nucleoid E. cell wall

Biology & Microbiology

Which of these is a renewable resource?

a. biofuels b. fossil fuels c. oil d. coal e. all of the above

Biology & Microbiology

How does mitotic prophase differ from prophase I of meiosis?

a. Chromatin supercoils only in mitotic prophase. b. The nuclear envelope disappears only in prophase I of meiosis. c. Synapsis occurs in mitotic prophase and but not in meiotic prophase I. d. The chromatids separate in mitotic prophase, not in prophase I of meiosis. e. Crossing over is characteristic of prophase I of meiosis but not of mitotic prophase.

Biology & Microbiology

Select all of the factors that influence enzyme speed.

A) pH B) Temperature C) Availability of Cofactors D) Amount of enzyme lost in the reaction

Biology & Microbiology