Exam (elaborations)
Exam (elaborations) Biology 121 Biology, Cell Biology and Genetics, Chapters 1-17
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Biology international practice test
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International Subject
Tests
International Subject Test—
Biology Practice Test
The ACT® International Subject Test—Biology Practice Test is an
official AIST practice test. The full-length Biology practice test
consists of items drawn from the International Subject Test Biology
formative assessment pool and adheres to the AIST Biology Test
Specifications.
This PDF file includes Biology Practice Test questions and answer
keys. Taking the AIST Official full-length practice test is the best
way to prepare for the two sessions of the AIST Biology test.
, Biology
Part 1
45 Minutes—38 Questions
For each question, choose the best answer and select the circle next
to it. If you change your mind about an answer, choose a different
answer and select the circle next to it.
Your score will be based only on the number of questions you answer
correctly during the time allowed. You will not be penalized for
guessing. It is to your advantage to answer every question even if you
must guess.
If you finish before time ends, you should use the time remaining to
reconsider questions you are uncertain about.
No part of the AIST Biology practice test can be copied,
© 2023 by ACT, Inc. All rights i reproduced, sold, scanned, emailed, or otherwise
reserved. transferred.
, 1. How do enzymes speed up chemical reactions?
A. By reducing activation energy
B. By reducing energy produced by the reaction
C. By increasing activation energy
D. By increasing energy produced by the reaction
2. Which of the following figures represents bone tissue?
A. C.
B. D.
3. The hydrolysis of which of the following molecules provides energy
for muscle contraction?
A. ATP
B. DNA
C. Lactic acid
D. Oxygen
4. Nondisjunction can occur during which of the following phases?
A. Metaphase I only
B. Anaphase I only
C. Metaphase I and II only
D. Anaphase I and II only
No part of the AIST Biology practice test can be copied,
© 2023 by ACT, Inc. All rights 1 reproduced, sold, scanned, emailed, or otherwise
reserved. transferred.
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