Which form of transport requires the expenditure of energy?

A) Facilitated diffusion
B) Active transport
C) Passive transport
D) Osmosis


B

Biology & Microbiology

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At the beginning of interphase in G1, a cell has 36 chromosomes. How many chromosomes would be found in that same cell in G2 of interphase?

a. 36 b. 18 c. 72 d. 64 e. 44

Biology & Microbiology

Where are the sugars formed during photosynthesis?

a. Cell membrane b. Grana c. Stroma d. Cell wall e. Cristae

Biology & Microbiology

What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

A) the presence or absence of bonds with oxygen atoms B) the presence or absence of double bonds between the carbon atom and other atoms C) the polarity of the covalent bonds between carbon and other atoms D) the solvent in which the organic molecule is dissolved

Biology & Microbiology

Consider a large algal colony like Cladophora or Microcystis, which plays host to a complex biofilm of bacteria. What is a specific benefit the algal host may receive from the relationship?

A. Glucose B. A physical habitat C. Water D. Vitamin B12 E. Oxygen

Biology & Microbiology