30. 다음 글의 밑줄 친 부분 중, 문맥상 낱말의 쓰임이 적절하지 않은
것은?
How do hormones trigger reactions in the body? When a
hormone is released from a gland, it travels in the bloodstream
through the body in search of its ① target. Organs, tissues and
other glands in the body have receptor sites that hormones
must bind to in order to deliver their message and cause an
effect. But because every hormone has its own unique shape,
they are designed to act only on the parts of the body that have
a receptor site with the ② corresponding shape. This mode of
action can be likened to a lock and key mechanism ― if the key
doesn’t fit the lock, then nothing will happen. When a hormone
binds to its receptor, it sets off a chain of other signaling
pathways to create a ③ change in the body. Once the desired
effect has taken place and there is too much hormone
circulating in the blood, this signal is fed back to the glands to
④ boost further hormone release. This is called a feedback loop
and, when functioning correctly, it allows the endocrine system
to ⑤ ensure the conditions in your body remain in balance.
④ boost -> suppress
지문 출처: 검색이 안됨 (생명과학, 생화학쪽 글인것 같음)
