WorksheetsK'Beam_photosynthesis
Total questions: 24
Worksheet time: 8mins
Which is released as a byproduct of photosynthesis?
carbon dioxide
carbon
oxygen
water
Which best describes light reactions?
They are the first stage of photosynthesis.
They utilize the energy stored in ATP and NADPH.
They use carbon dioxide to synthesize proteins.
They create energy-rich ATP and NADPH.
Why do we perceive chlorophyll as being green?
Because it is green.
Because it absorbs green light.
Because it reflects green light.
Because it absorbs yellow light.
Which would you expect to increase the rate of photosynthesis?
increasing the carbon dioxide concentration
decreasing the intensity of exposure to red light
increasing the oxygen concentration
decreasing the duration of exposure to red light
Which could be used to monitor the rate of photosynthesis in a plant?
carbon dioxide production
water production
oxygen production
hydrogen production
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?
light reaction
Calvin cycle
electron transport chain
ATP formation
Where do the light reaction occur?
carotenoid
mesophyll
thylakoid membrane
stroma
When a photon of light energy reaches a reaction center chlorophyll molecule, what becomes excited?
molecule of water vapor
an electron
a carbon dioxide molecule
an atom of oxygen
The difference between P700 and P680 is that
the concentration of chlorophyll molecules is greater in P700.
P680 is only used in the cyclic electron flow.
P680 is found in algae while P700 is found in land plants.
P700 absorbs light with a wavelength of 700 nm.
ข้อใดผิดเกี่ยวกับการตั้งชื่อสายพันธุ์ของโควิด-19 ตามภาพ
WHO เป็นหน่วยงานแจ้งชื่อสายพันธุ์ใหม่นี้
มีการข้ามชื่อ ‘นิว’ (Nu) และ 'ไซ’ (Xi)
ใช้หลักการตั้งชื่อตามอักษรกรีก
ใช้หลักการตั้งชื่อตามอักษรละติน
(a) is the final electron acceptor in photosystem I.
What is the purpose of cyclic electron flow?
It creates water needed for cellular respiration.
It creates only ATP, needed by the light-independent reactions.
It supplies electrons for photosystem I.
It cleaves water into oxygen and hydrogen ions.
Light-harvesting complexes, excited by photons of light, are made of...............
proteins and sugars.
proteins, cofactors, and pigment.
pigment and sugars.
proteins and water.
When electrons are passed through an electron transport chain, released energy
is lost as heat.
splits water into hydrogen and oxygen.
fuses carbon dioxide molecules into a sugar.
is transformed into a hydrogen ion gradient to drive ATP synthesis.
according to the picture, which of the following statements are incorrect?
found in stroma
it's an enzyme
creates ATP from the substrates ADP and Pi
proton can move through this structure
The enzyme responsible for Carbon Fixation in Photosynthesis is
RuBisCo
PEP Carboxylase
Hexokinase
Pyruvate DeHydrogenase
Where does most of a plant's biomass come from?
from the soil
from carbon dioxide from the air and water from the soil
from nutrients in the soil
from water
At midday, what is happening in the leaf of a plant?
Respiration
Photosynthesis
Mainly photosynthesis and some respiration
all are incorrect
At midnight, what is happening in the leaf of a plant?
Respiration
Photosynthesis
Photosynthesis and respiration
all are incorrect
Which of the following is required to produce amino acids from glucose?
nitrates
fatty acids and glycerol
cellulose
chitin
In Calvin cycle, (a) is regenerated for accepting new carbon dioxide
The molecule that comes out of the Calvin Cycle to produce glucose, and polymers like cellulose is:
RuBP
GP3
3-PG
G3P
Which is not a product of the Calvin Cycle?
ADP
NADP+
G3P
FADH2
In the Calvin Cycle, NADPH molecules are:
oxidized
reduced
