Page 51 - Index

2023 ‫מועד חורף‬ - 50 - ‫ פרק שני‬- ‫אנגלית‬

19. It can be inferred from the second paragraph that all crystals -

(1) change when struck by a beam of x-rays
(2) produce a diffraction pattern
(3) have medical uses
(4) have the same molecular configuration

20. It can be inferred from the second paragraph that "diffract" is closest in meaning to -

(1) strike
(2) scatter
(3) decipher
(4) configure

21. According to the last paragraph, in 1934 -

(1) the cause of diabetes was not yet known
(2) x-ray diffraction crystallography was not very advanced
(3) insulin had just been discovered
(4) Hodgkin began working with other scientists on x-ray diffraction crystallography

22. It can be inferred from the text that it took Hodgkin 35 years to ascertain the molecular

structure of insulin because -

(1) insulin is not actually a crystal
(2) making an exact map of a complex crystal is very difficult
(3) not all crystals can be analyzed using x-ray diffraction crystallography
(4) the structure of insulin is very similar to that of other molecules

)‫© כל הזכויות שמורות למרכז ארצי לבחינות ולהערכה (ע"ר‬
.‫ בלא אישור בכתב מהמרכז הארצי לבחינות ולהערכה‬- ‫ כולה או חלקים ממנה‬- ‫ או ללמדה‬,‫אין להעתיק או להפיץ בחינה זו או קטעים ממנה בכל צורה ובכל אמצעי‬