Answer the following statements true (T) or false (F)
1. One way that archaeans differ from bacteria is that archaeans possess more peptidoglycan in their cell walls.
2. Chitin is found in the cell walls of algae, but is not found in the cell walls of any other types of microorganisms.
3. Tyndallization is a process that kills spores as well as vegetative cells.
4. Procaryotic cells do not contain endoplasmic reticulum, Golgi bodies, mitochondria, plastids, or membrane-bound vesicles.
5. In eucaryotic cells, ribosomal RNA (rRNA) molecules are manufactured in the nucleolus.
1. FALSE
2. FALSE
3. TRUE
4. TRUE
5. TRUE
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Which group of terms is in the correct developmental sequence?
(a) microspore mother cell, meiosis, megaspore, female gametophyte. (b) microspore mother cell, meiosis, microspore, pollen grain. (c) megaspore, mitosis, female gametophyte, meiosis, endosperm mother cell. (d) all of the above.
Which of the following statements about Malpighian tubules is correct?
A. All the answer options are correct. B. They are a series of tubes that empty into the hindgut of insects. C. They actively secrete uric acid and excess electrolytes while retaining key solutes. D. They allow insects to live in dry terrestrial environments. E. They allow for excretion nitrogenous wastes with minimal water loss.
Which of the following reactions is a dehydration reaction?
A. A + H2O ? B + C B. A + B ? C + H2O C. A ? B + C + H2O D. A + B + H2O ? C
The host DNA is usually degraded during which stage?
a. Biosynthesis b. Assembly c. Penetration d. Release e. Attachment