Zadanie 2a
Calculate the mean rate of oxygen bubble production at 12 cm.
- Materiał graficzny
Photosynthesis
Umiejętności w tym dziale
Umiejętności z tego działu sprawdzają 52 zadania wzorowane na arkuszach IB z lat 2022–2026. Dział pojawia się w 29 z 54 arkuszy w bazie.
Zadania z tego działu: 52 Otwórz w wyszukiwarce z filtrami
Zadanie 2b
State the relationship between light intensity and photosynthetic rate supported by these results.
- Materiał graficzny
Zadanie 2c
(i) Suggest why a water-filled beaker is placed between the lamp and the plant tube. (ii) Identify two variables that should be kept constant.
- Materiał graficzny
Zadanie 2d
Outline how the leaves produce the oxygen measured in this investigation.
- Materiał graficzny
Zadanie 7
A leaf extract is separated by chromatography. Which band has the greatest retention factor (Rf) in this run? A. The yellow-green band B. The blue-green band C. The orange band D. The yellow band
- Materiał graficzny
Zadanie 7
The scheme summarizes the Calvin cycle. How many molecules of three-carbon glycerate phosphate (3-PGA) must enter its reduction stage to yield one six-carbon sugar while also regenerating all the carbon acceptor? A. 3 B. 6 C. 10 D. 12
- Materiał graficzny
Zadanie 8
The scheme follows exchanges between two stages of photosynthesis. Which letter represents oxidized NADP returning for reuse? A. A B. B C. C D. D
- Materiał graficzny
Zadanie 8
Three pigment absorption spectra from a model green leaf are shown. Which deduction is supported? A. Red illumination near 666 nm can supply energy for oxygen-producing photosynthesis B. The leaf must absorb every wavelength equally C. Green illumination near…
- Materiał graficzny
Zadanie 6
A blue carbon-dioxide indicator becomes yellow when dissolved carbon dioxide accumulates. Identical sealed jars start blue. Which treatment is most likely to retain the blue colour if illumination is sufficient for net photosynthesis? A. An aquatic plant and a…
Zadanie 7
Which electron-transfer event is correctly placed in the light-dependent reactions of photosynthesis? A. Photosystem II receives electrons directly from triose phosphate B. ATP donates its phosphate electrons to reduce water C. Electrons leaving photosystem I…