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Cell Energy IV Lowersixth Science Biology
 

Froggy Jumps

Cell Energy IV Lowersixth Science BiologyOnline version

Challenging biology questions for 17-year-olds

by YAKILI LMS
1

What primarily distinguishes absorption spectra from action spectra?

2

Which statement about absorption spectra is true?

3

Which statement about action spectra is true?

4

Which component is essential for chromatography to separate pigments?

5

What is chromatographic paper primarily made of?

6

Which factor mainly affects chromatogram movement of pigments?

7

What is a chromatogram?

8

What does the Retention Factor (Rf) measure?

9

Which equation defines Rf in chromatography?

10

Which statement about chromatography is correct?

11

In photosynthesis, what is the role of pigment excitation by light?

12

Which process converts light energy to chemical energy in photosynthesis?

13

Which pigment is primarily involved in capturing light energy?

14

What is the primary site of photosynthesis in plants?

15

What happens during light-dependent reactions?

16

Which gas is released during the light-dependent reaction?

17

Where does the light-dependent reaction occur?

18

What pigment primarily absorbs red and blue light for photosynthesis?

19

Which process fixes CO2 into organic molecules?

20

Which enzyme catalyzes the first CO2 fixation in C3 plants?

21

What is the main product of the Calvin cycle?

22

Which molecule is regenerated in the Calvin cycle?

23

Which statement best describes the purpose of chromatography in biology?

24

Which pigments usually appear as bands on a chromatogram?

25

What is a common solvent system for plant pigment chromatography?

26

In chromatography, what does a higher Rf value indicate?

27

Which factor does not affect pigment separation by chromatography?

28

Which component is needed to measure photosynthesis rate directly?

29

Which is a primary pigment in photosynthesis besides chlorophyll a?

30

What is the role of light in photosynthesis?

31

Which organelle contains pigments for photosynthesis?

32

What is the main function of the light reactions?

33

Which gas is consumed in photosynthesis but released in respiration?

34

Which pigment is more non-polar and travels farther in paper chromatography?

35

Which term describes the speed of a reaction under different wavelengths?

36

Where do pigments sit in a chromatogram?

37

What is the first stable product of the Calvin cycle?

38

Which condition favors better pigment separation in chromatography?

39

What is the primary energy carrier produced in light-dependent reactions?

40

What is the term for pigments used to broaden light absorption?

41

Which compound is regenerated to continue the Calvin cycle?

42

What happens to water during the light reactions?

43

Which factor can alter a chromatogram’s interpretation?

44

Which molecule carries electrons after light absorption?

45

Which is a component of a chromatogram analysis?

46

What is the primary source of CO2 for photosynthesis?

47

Which process directly uses light energy to form ATP?

48

The term 'retention factor' relates to which technique?

49

Which pigment group absorbs blue and red light best?

50

What is the solvent front in chromatography?

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