Which of the following can be determined using simple stains?
A) the number and position of flagella
B) size and shape
C) size, shape and cellular arrangement
D) the presence of capsules
E) the presence of endospores
Answer: C
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Which of the three atomic particles are charged?
a. electrons and protons b. neutrons only c. protons and neutrons d. electrons only e. protons, neutrons, and electrons
Answer the following questions true (T) or false (F)
1. Louis Pasteur is considered the Father of Microbiology because of the many carefully conducted experiments and observations he made with microbes. 2. Gene therapy is a modern approach to preventing infectious disease. 3. Koch's postulates can be used to determine the causes of infectious diseases.
Which of the following statements about plant and animal development is false?
A. Cell division occurs in discrete regions within the plant body, but tissue differentiation occurs throughout the plant body. B. Cell differentiation and growth occurs throughout the developing animal body. C. Animal cells move during development, whereas plant cells do not. D. In both plants and animals, signaling molecules induce cell differentiation. E. Animal embryos pass through a gastrula stage, whereas plant embryos do not.
Based on what you know about the biochemical composition of cells from Chapter 1 in your text book, the primary information containing building blocks of chromosomes are likely
A. amino acids. B. lipids. C. nucleotides. D. carbohydrates.