Ashworth Semester Exam SC160 Basic Biology

SC160 : Basic Biology
Question 1
Relative to prokaryotic cells, eukaryotic cells are usually:
larger and more complex.
smaller and simpler.
larger and equally complex.
smaller and more complex.

Question 2
The tendency of molecules of the same kind to stick together is called:
bonding.
cohesion.
polarity.
adhesion.

Question 3
You find a cell of a type you have never seen before. The cell has both a nucleus and a cell wall. Therefore, you conclude that it must be a __________ cell.
prokaryotic
animal
bacterial
plant

Question 4
Plants use photosynthesis to:
store chemical energy, and they use cellular respiration to harvest energy.
store as well as harvest chemical energy.
harvest energy, and they use cellular respiration to store chemical energy.
obtain carbon dioxide.

Question 5
Alleles are described as:
homologous chromosomes.
environmental factors that affect gene expression.
alternate versions of a gene.
alternate phenotypes.

Question 6
The process of making multiple copies of a gene by inserting it into a host genome and culturing the host is an example of:
gene cloning.
industrial genetic engineering.
gene amplification.
gene pharming.

Question 7
What type of reproductive isolating mechanism is described by a situation in which female fireflies only mate with males who emit light in a particular pattern?
Habitat isolation
Temporal isolation
Mechanical isolation
Behavioral isolation

Question 8
Mutualistic associations of plant roots and fungi are called:
mycorrhizae.
mycelia.
mycophyta.
myrmecochores.

Question 9
Ecology is the study of:
life.
human effects on the environment.
interactions between humans and other species.
interactions between organisms and their environments.

Question 10
Populations of two coexisting species are both tertiary consumers in a community. What relationship may exist between these two organisms?
Predation
Mutualism
Competition
Commensalism

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