Which of the following statements regarding cells is false?

A) All cells are enclosed in a membrane that maintains internal conditions different from the surroundings.
B) All cells have a cell wall.
C) All cells can interconvert forms of energy.
D) All cells have DNA as their genetic material.


Answer: B

Biology & Microbiology

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Answer the following questions true (T) or false (F)

1. All hormones are steroids. 2. Most enzymes are proteins, but not all proteins are enzymes. 3. Your muscles contract using contractile proteins to produce movement.

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Which yeast identification system uses chromogenic substrates to assess specific enzyme activity usually detected within 4 hours?

a. Vitek b. MicroScan c. API-20C AUX d. Uni-Yeast-Tek

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The movement of water through a plant is

driven by

a. the drying power of the air. b. osmosis. c. active pumping using ATP. d. root pressure. e. a combination of more than one of these

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