What kind of molecules can readily cross the lipid bilayer?
a. Small, charged
b. Small, uncharged
c. Large or small, uncharged
d. Small, charged or uncharged
Ans: b. Small, uncharged
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A slime layer gives bacterial cells greater pathogenicity than a capsule.
Answer the following statement true (T) or false (F)
After a young woman suffered a traumatic brain injury, she seemed clumsy and out-of-sorts. She was given a visual acuity test (the assessment for glasses) and general eye health exam, and her eyes were deemed healthy. Would these assessments be adequate to rule out any visual impairment resulting from the brain trauma?
A. Yes, her clumsiness is more likely attributable to inner ear damage. B. No, a neurological examination of her visual processing pathways would be necessary.
Check all of the mutually beneficial relationships between prokaryotes and eukaryotes.
A. Nitrogen-fixing bacteria live in plant root nodules. B. Agrobacterium tumefaciens bacteria that form galls in some plants. C. The human microbiome aids in human health. D. Prokaryotes aid in digestion in ruminants.
Various forms that a single gene can take at a given locus are called
A. kinetochores. B. alleles. C. autosomes. D. loci. E. chromatids.