What is the main component of an animal cell membrane?
A. cholesterol
B. glycolipids
C. aquaporins
D. polynucleotides
E. phospholipids
Answer: E
Biology & Microbiology
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In flowering plants, companion cells are connected via plasmodesmata to ____
a. trichomes b. tracheids c. sieve tube elements d. guard cells e. vessel members
Biology & Microbiology
The veins of leaves are used for ____
a. support b. identification c. transport of water and nutrients d. detachment in the autumn e. regeneration
Biology & Microbiology
What kind of bond is formed between successive amino acids during translation?
A) ionic bond B) phosphodiester bond C) hydrogen bond D) disulfide bond E) peptide bond
Biology & Microbiology
Is the field sobriety test a presumptive or confirmatory test?
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology