The Making of a Scientist

Easy (15)

1. At what age did Richard Ebright excite the scientific world with a new theory on how cells work?
   • Eighteen
   • Twenty-two (correct)
   • Twenty-five
   • Thirty

   Why: Richard Ebright was twenty-two when he published his theory on cell function.

2. What was the first thing Richard Ebright collected as a child?
   • Coins
   • Rocks
   • Butterflies (correct)
   • Stamps

   Why: Ebright began collecting butterflies in kindergarten, showing early determination.

3. Which book became a turning point in Richard Ebright's life?
   • The Life of Insects
   • The Butterfly Collector's Guide
   • The Travels of Monarch X (correct)
   • A Field Guide to Butterflies

   Why: His mother bought him 'The Travels of Monarch X', which sparked his interest in butterfly migration.

4. Who encouraged Richard Ebright's interest in learning and bought him scientific equipment?
   • His father
   • His teacher
   • His mother (correct)
   • Dr. Urquhart

   Why: His mother was his constant companion and supporter, providing him with tools and encouragement.

5. What was Ebright's entry in the seventh-grade science fair that led to his loss?
   • A collection of butterflies
   • Slides of frog tissues (correct)
   • A model of a cell
   • An experiment on beetle behavior

   Why: His seventh-grade entry was frog tissue slides, which he realized wasn't a 'real experiment'.

6. What was the purpose of the twelve tiny gold spots on a monarch pupa, according to Ebright's research?
   • To attract mates
   • To produce a hormone for development (correct)
   • To camouflage the pupa
   • They were purely ornamental

   Why: Ebright discovered the gold spots produced a hormone essential for the butterfly's full development.

7. What is DNA described as in the chapter?
   • A type of protein
   • The blueprint for life (correct)
   • A simple sugar
   • An insect hormone

   Why: The chapter defines DNA as the 'blueprint for life' because it controls heredity and cell function.

8. Richard Ebright's social studies teacher and adviser was Mr. Weiherer. True or False?

   Why: Mr. Weiherer was indeed Ebright's social studies teacher and adviser, who opened his mind to new ideas.

9. Ebright's theory about cell life might lead to new ideas for preventing some types of cancer and other diseases. True or False?

   Why: The chapter suggests Ebright's theory could have significant medical implications.

10. Richard Ebright was an only child. True or False?

    Why: The chapter states that Ebright was an only child, which influenced his mother's dedication.

11. Richard Ebright graduated from Harvard with highest honours, second in his class of _________.

    Why: Ebright's academic excellence at Harvard was notable, graduating second in a large class.

12. Ebright's research on the gold spots on monarch pupa eventually led him to his theory about _________.

    Why: His early research on pupa spots was a stepping stone to his broader theory on cell life.

13. Identify the monarch butterfly in the image.
    • Top butterfly (correct)
    • Bottom butterfly
    • Both are monarchs
    • Neither is a monarch

    Why: The top butterfly in Fig 6.2 is the monarch, known for its distinct markings.

14. The diagram shows a graph of butterfly collection. Which category represents 'Whites and Sulphurs'?
    • The third bar from the left (correct)
    • The first bar from the left
    • The last bar on the right
    • The second bar from the left

    Why: Refer to Fig 6.1, the graph of butterfly collection. The third bar represents 'Whites and Sulphurs'.

15. What was the name of the university where Dr. Frederick A. Urquhart conducted his butterfly research?
    • Harvard University
    • University of Toronto (correct)
    • Yale University
    • Oxford University

    Why: Dr. Urquhart, who studied butterfly migrations, was from the University of Toronto.

Medium (15)

1. Why did Ebright's mother find work for him when he didn't have things to do?
   • To keep him physically active
   • To teach him household chores
   • To encourage his learning and keep him engaged intellectually (correct)
   • To prevent him from playing outside too much

   Why: His mother ensured he was always learning, providing intellectual tasks rather than physical ones.

2. What was the main reason Ebright lost interest in tagging butterflies after some time?
   • He ran out of tags
   • It was tedious and yielded little feedback (correct)
   • He found a new hobby
   • His mother stopped encouraging him

   Why: Ebright found tagging tedious and unrewarding due to the low recapture rate.

3. How did Ebright's experience at the seventh-grade science fair change his approach to science?
   • He decided to quit science fairs
   • He learned the importance of neat displays
   • He realized the need to conduct real experiments, not just make displays (correct)
   • He started focusing only on butterfly collecting

   Why: His loss taught him that true science involves experimentation, not just presentation.

4. What was the theory Ebright tested regarding viceroy butterflies?
   • Viceroy butterflies are poisonous to birds.
   • Viceroy butterflies migrate further than monarchs.
   • Viceroy butterflies copy monarchs to avoid being eaten by birds. (correct)
   • Viceroy butterflies are a different species entirely.

   Why: He tested the mimicry theory: viceroys look like monarchs to deter predators.

5. Match the scientific achievement with Richard Ebright's stage of life.

   Why: Ebright's scientific journey progressed through distinct stages, each marked by key discoveries.

6. Match the qualities with their description as ingredients for a scientist.

   Why: The chapter identifies a first-rate mind, curiosity, and the will to win for the right reasons as essential for a scientist.

7. Match the person with their contribution to Richard Ebright's scientific journey.

   Why: Each individual played a crucial role in shaping Ebright's development as a scientist.

8. Match the type of butterfly with its characteristic mentioned in the chapter.

   Why: The chapter discusses monarch and viceroy butterflies, their defense mechanisms, and the life cycle stages.

9. What is the name of the substance in the nucleus of a cell that controls heredity?

   Why: DNA is the genetic material that carries hereditary information in cells.

10. What award did Richard Ebright receive for biochemistry and molecular biology?

    Why: Ebright received the Schering Plough Award for his work in biochemistry and molecular biology.

11. What was the name of the laboratory where Ebright worked during his summers in high school and after graduation?

    Why: Ebright gained valuable experience at the Walter Reed Army Institute of Research.

12. Arrange the stages of a butterfly's life cycle in the correct order as mentioned in the chapter.

    Why: The butterfly life cycle progresses from egg to caterpillar, then pupa, and finally to an adult butterfly.

13. Arrange Ebright's major scientific projects in chronological order.

    Why: Ebright's projects show a clear progression from simple displays to complex experimental research.

14. Which part of the graph (Fig 6.1) indicates the number of 'Monarchs' collected?
    • The first bar from the left
    • The second bar from the left (correct)
    • The fourth bar from the left
    • The last bar on the right

    Why: Based on Fig 6.1, 'Monarchs' are represented by the second bar in the butterfly collection graph.

15. In Fig 6.2, which butterfly is the 'Viceroy'?
    • The top butterfly
    • The bottom butterfly (correct)
    • Both are viceroys
    • Neither is a viceroy

    Why: Fig 6.2 clearly shows the viceroy butterfly at the bottom, mimicking the monarch.

Hard (10)

1. Assertion (A): Richard Ebright's mother was instrumental in his scientific journey. Reason (R): She bought him a book, 'The Travels of Monarch X', which opened the world of science to him.

   Why: His mother's gift of the book was a direct catalyst for his scientific exploration.

2. Assertion (A): Ebright was competitive, but not in a bad sense. Reason (R): He wanted to win for winning's sake and to get prizes.

   Why: Ebright's competitiveness stemmed from a desire to do his best, not just to win prizes.

3. Assertion (A): Ebright's high school research on monarch pupa spots was crucial for his later theory on cell life. Reason (R): The spots were initially thought to be ornamental, but Ebright proved they produced a vital growth hormone.

   Why: His discovery about the spots' hormonal function directly informed his understanding of cell development.

4. Read the following passage about Ebright's early life and answer the question: 'An only child, Ebright grew up north of Reading, Pennsylvania. “There wasn’t much I could do there,” he said. “I certainly couldn’t play football or baseball with a team of one. But there was one thing I could do — collect things.” So he did, and did he ever! Beginning in kindergarten, Ebright collected butterflies with the same determination that has marked all his activities. He also collected rocks, fossils, and coins. He became an eager astronomer, too, sometimes star-gazing all night.' What does this passage reveal about Ebright's character and the influence of his environment?
   • He was easily bored and lacked focus, constantly switching hobbies.
   • His isolation as an only child in a quiet town fostered a deep, self-driven curiosity and determination. (correct)
   • He preferred solitary activities because he disliked team sports.
   • His environment forced him into science, against his natural inclinations.

   Why: His environment, coupled with being an only child, channeled his energy into focused, solitary intellectual pursuits.

5. Consider Ebright's project on the viral disease killing monarch caterpillars. He raised caterpillars in the presence of beetles but 'didn’t get any real results.' However, he still won the science fair. What does this incident suggest about the scientific process and judging criteria?
   • Science fairs sometimes reward effort over actual discoveries.
   • Even negative results are valuable if the experiment is well-designed and executed. (correct)
   • Ebright must have cheated to win without real results.
   • The judges were not competent enough to evaluate scientific merit.

   Why: This shows that a well-conducted experiment, even with inconclusive results, demonstrates scientific methodology and earns recognition.

6. Ebright's discovery of the chemical structure of the hormone from the gold spots and his subsequent idea about cell life came from looking at X-ray photos. What does this highlight about scientific breakthroughs?
   • Breakthroughs always require advanced technology and complex experiments.
   • Visualizing complex structures can provide crucial insights for theoretical understanding. (correct)
   • Scientific discoveries are often accidental and require no prior knowledge.
   • Ebright's success was purely due to luck and access to sophisticated instruments.

   Why: Visual tools like X-ray photos can be pivotal in translating complex data into theoretical insights.

7. Identify the part of the butterfly life cycle that represents the pupa stage in the given diagram.
   • A
   • B (correct)
   • C
   • D

   Why: The pupa (chrysalis) is the transitional stage where the caterpillar transforms into an adult butterfly.

8. Which of the following statements about Richard Ebright's interests and personality are true? (Select all that apply)
   • He was a champion debater and public speaker. (correct)
   • He was exclusively focused on science and had no other hobbies.
   • He was an expert photographer, especially of nature and scientific exhibits. (correct)
   • He was a poor student in high school, struggling with academics.

   Why: Ebright was multifaceted, excelling in both academic and extracurricular activities.

9. Which of the following qualities contributed to Richard Ebright's success as a scientist? (Select all that apply)
   • A driving curiosity (correct)
   • A bright mind (correct)
   • Lack of interest in competition
   • The will to win for the right reasons (correct)

   Why: Ebright possessed curiosity, intelligence, and a principled drive to excel, all crucial for scientific success.

10. Observe the provided diagram of a DNA double helix. Which labeled component represents the sugar-phosphate backbone?
    • The inner rungs connecting the two strands
    • The outer helical structure of each strand (correct)
    • The entire double helix structure
    • The central axis of the helix

    Why: The sugar-phosphate backbone forms the structural framework of the DNA double helix.