Cells can be described as having a cytoskeleton of internal structures that contribute to the shape, organization, and movement of the cell. All of the following are part of the cytoskeleton except

a. the nuclear envelope.
b. microtubules.
c. microfilaments.
d. intermediate filaments.
e. actin.


a. the nuclear envelope.

Biology & Microbiology

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Fungal spores are a major cause of

A. anaerobic disease. B. fermentation. C. food spoilage. D. asthma.

Biology & Microbiology

Four of the five answers listed below are related by their participation in water movement through plants. Select the exception

a. hydrogen bonds b. transpiration c. cohesion d. tension e. phytoremediation

Biology & Microbiology

Engelmann was unaware of which of the following

facts? a. Algae are capable of photosynthesis. b. Some bacteria are aerobic. c. Visible light is made up of various wavelengths. d. Oxygen is released in photosynthesis. e. Pigments are involved in photosynthesis.

Biology & Microbiology

Parasitic worms, even meters-long tapeworms, are studied in microbiology because

A) they are parasites. B) diagnosis usually involves microscopic examination of patient samples. C) the Gram stain can be used to identify them. D) Leeuwenhoek first discovered them. E) no one else wants to study them.

Biology & Microbiology