Exam 1 review Flashcards
Which of the following statements are relevant to
the genera Matricaria and Achillea?
A. Both belong to the Asteraceae family
B. They were both discussed as fossilized plants found in the Permian swamps in
the Fossils reading
C. They were both identified as potential medicinal components in the Neanderthal
diet based on mass spectrometric analysis of dental calculi
D. Both A and B
E. Both A and C
D. Both A and B
________ is a taxon/category that just falls below
genus in the classification hierarchy.
A. somniferum
B. Asteraceae
C. Nicotiana
D. Hominidae
E. none is correct
A. somniferum
Millet, corn, rice, rye, and wheat are all examples
of cereal grains that make up ~51% of the total
food consumed by humans
true
Popularly considered to be an edible genus among
the cyanobacteria
Arthrospira
How does a plant secondary metabolite usually act
on mammalian cells?
It interacts with receptors on the cell surface or inside the cytoplasm
Which of the following toxins inhibit the Na+/K+
ATPase?
cardiac glycosides
Which of the following is not one of the three
main groups of secondary metabolites based on
their structures or precursor molecules?
A. Phenolics
B. Ester
C. Terpenoids
D. Nitrogen-containing
Ester
Morphine is a terpenoid from Papaver
somniferum used to treat ovarian, lung, and breast
cancers.
False
Brevetoxin is known to do which one of the
following?
A. Bind voltage gated sodium channels causing an efflux of sodium
B. Bind voltage gated sodium channels causing an influx of sodium
C. Bind voltage gated calcium channels causing an influx of calcium
D. Bind voltage gated potassium channels causing an efflux of potassium
B. Bind voltage gated sodium channels causing an influx of sodium
As a general rule of thumb, eating fruits of many
different colors is healthy practice, for a well-
balanced diet.
true
Which of the following is evidence that humans
began cooking plants atleast 24,000 years ago?
Cracked/roasted starch granules in the dental calculus of two adult archaic
humans
Non-essential carbon containing molecules in
plants with adaptive value are referred to as which
of the following?
A. Primary metabolites
B. Target receptors
C. Raphides
D. None of the above
E. none of the above (secondary metabolites)
Which of the following is NOT a mechanism that
cyanobacterial algal blooms can use to float in
water?
A. Production of sulfated polysaccharides that trap oxygen released by the bloom
B. Production of intracellular vesicles that store gases inside the cells
C. Production of extracellular microtubules that use special extracellular motor
proteins
D. All are correct
E. All are incorrect
C. Production of extracellular microtubules that use special extracellular motor
proteins
What is the cause of excessive cyanobacterial
blooms seen nowadays?
A. rising carbon dioxide concentrations
B. excessive nutrients in water bodies
C. warmer temperatures
If global warming occurs in the future, which is
the group of marine animals that would be most
susceptible?
A. those used to lower oxygen levels in cooler waters at the higher latitudes
B. those used to higher oxygen levels in cooler waters at the higher latitudes
C. those used to lower oxygen levels in warmer waters at the equator
D. all are equally highly susceptible
E. all are highly resistant to global warming due to symbiosis with cyanobacteria
B. those used to higher oxygen levels in cooler waters at the higher latitudes
What happened toward the end of the Permian
period:
70% of life on land and 90% of marine life perished due to reasons that are still
being debated by geo-bio scientists
In tryptophan-dependent Indole Acetic Acid (IAA)
synthesis pathways, typically the bacterium
provides the tryptophan and the eukaryotic
organisms such as diatoms make and release IAA
that act upon bacterium as a morphogen.
A. True
B. False
B. False
Best explanation for the presence of plant
pigments and bitter testing compounds with no
nutritional value in Neanderthal diets:
A. Neanderthals were exclusively vegetarian
B. Neanderthals lived as individuals and not in closely knit social groups
C. Neanderthals had metabolic pathways that allowed them to extract energy from
such compounds
D. all are correct
E. none is correct
E. none is correct
Order in the evolution of plants on our planet from
earliest to latest among the choices given:
A. Aquatic plants> Early land plants> Seed plants > Flowering plants
B. Early land plants> Flowering plants> Vascular plants> Seed plants
C. Vascular plants> Early land plants> Flowering plants> Seed plants
D. Early land plants> Seed plants> Vascular plants> Flowering plants
E. none is correct
. Aquatic plants> Early land plants> Seed plants > Flowering plants
