Cell Biology Questions
Explore questions in the Cell Biology category that you can ask Spark.E!
What are the three parts of an ATP molecule?a) adenine, thylakoid, and a phosphate groupb) ströma, grana and chlorphyllc) adenine, ribose and three phosphate groupsd) NADH, NADPH and FADH2
IN many plants the rate of photosynthesis _______when the weather becomes very cold.
Which of the following organisms is a heterotroph?a) mushroomb) algac) wheatd) sunflower
T/F During light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars.
Why is it important that a membrane separates the cell regions on either side of an ATP synthase molecule in order for the protein to perform its function?
The storm is the region outside thea) thylakoidsb) chloroplastsc) plant cellsd) all of the above
Why are electron carriers needed for transporting electrons from one part of the chloroplast to another?a) High energy electrons would be destroyedb) High energy electrons are highly reactivec) High energy electrons are not soluble in cytoplasmd) High energy electrons get their energy from electron carriers.
What are the products of the light dependent reactions?a) oxygen gas and glucose b) ATP, NADPH and oxygen gasc) ATP, carbon dioxide gas and NADPHd) carbon dioxide, oxygen gas and NADPH
What is the function of NADP+ in photosynthesis?a) electron carrierb) high energy sugarc) photosystemd) pigment
Which of the following happens in the stroma?a) Photosystem I absorbs lightb) ATP synthase produces ATPc) The Calvin cycle produces sugarsd) Electrons move through the electron transport chain
Photosynthesis uses sunlight to convert water and carbon dioxide intoa) oxygen and carbonb) high energy sugars and proteinsc) ATP and oxygend) oxygen and high energy sugars
Energy is released from ATP whena) a phosphate group is addedb) adenine bonds to ribosec) ATP is exposed to sunlightd) a phosphate group is removed
The Calvin cycle takes place in the a) stromab) photosystemsc) thylaknoid membranesd) chlorophyll molecules
Which of the following are autotrophs?a) deerb) plantsc) leopardsd) mushrooms
Thylakoids are arranged in stacks known as
(T/F) Electrons from water molecules replace the ones lost by photosystem II.
Which chemical is an electron carrier molecule?a) H20b) carbon dioxidec) NADP+d) oxygen
Which pathway represents the flow of electrons during photosynthesis?a) H20-> Photosystem I -> Photosystem IIb) O2-> ADP -> Calvin Cyclec) Photosystem I-> Calvin Cycle -> NADP+d) H20->NADP+ -> Calvin Cycle
Where are photosystems I and II found?a) in the stromab) in the thylakoid membranec) in the Calvin cycled) in the cell membrane
During the Calvin cycle, molecules of ______ supply the carbon component of carbohydrates.