Biology Semester 1 Final Exam

Front

Proteins that speed up the rate of chemical reactions in the cell without requiring high temperatures are __.

Back

enzymes

Front

A specific reactant an enzyme works upon is called the __.

Back

substrate

Front

Which of the following is NOT an example of a limiting factor? (Options: lack of food, shortage of water, disease, increase in birth rate)

Back

increase in birth rate

Front

A disease resulting in the deaths of one-third of a dense population of rabbits on an island would likely be a __.

Back

density-dependent factor

Front

When an amoeba lives in the intestines of a human, causing an illness called dysentery, the amoeba is referred to as a __.

Back

parasite

Front

The part of an enzyme where the substrate binds is called the __.

Back

active site

Front

Factors that limit the growth of a population regardless of its density are called __.

Back

density-independent factors

Front

The maximum population size that an environment can sustain is known as its __.

Back

carrying capacity

Front

The process by which organisms better adapted to their environment tend to survive and produce more offspring is called __.

Back

natural selection

Front

A symbiotic relationship where both organisms benefit is called __.

Back

mutualism