Cell Biology Questions
Explore questions in the Cell Biology category that you can ask Spark.E!
Weight loss can occur when glucose is oxidized to CO2 rather than being stored as glycogen. The first step in glucose oxidation is glycolysis. A 1930s diet drug, DNP, made the inner mitochondrial membrane permeable to protons, increasing the rate of glycolysis. What is the explanation for the DNP-induced increase in glycolysis?
Gluconeogenesis requires a total of ___________ ATP and GTP molecules combined.
You are packing for a hiking trip during which you'll be burning a lot of calories with physical activity. You want to pack as efficiently as possible since you need to carry a tent and all your food. You can get the most calories out of 5kg of food if it is in the form of
If cells were undergoing glycolysis but could not carry out fermentation, what products would build up in the cytosol?
During glycolysis, the number of ATP consumed (per glucose molecule) is ______ while the number produced is ________.
Your friends are on a low-fat, high-carbohydrate diet, which they claim will prevent fat accumulation within their bodies. They eat tons of pasta and bread without worrying about calorie count. What can you correctly say to your friends about their potential to accumulate lipids on their low-fat diet?
what process takes place inside chloroplasts?
In the electron transport chain, the oxygen atoms in O2 become part of which of the following molecules?
The ethanol in wine and beer is produced from metabolic reactions carried out by the yeast Saccharomyces cerevisiae. Since it is of great commercial value, researchers have studied factors that influence ethanol production. To maximize ethanol yield, which environmental factor should be limiting?
in photosynthesis, energy from ______ is converted to _______
what organelle breaks down and recycles worn out cells?
both chloroplast and mitochondria are alike in that they both have __________ ________ and their own ___
the largest organelle in plants is the _____________ __________
food, water, and wastes are stored inside _____
what pigment traps the energy for photosynthesis?
chloroplasts are found in what type of cell?
Carbon dioxide comes through hole on bottom of leaf = .... Stomata mostly regulated by.... cells.Inside the mesophyll (layer closest to top) has tons of chloroplasts.Chloroplast = .... membrane bound structures, do photosynthesis.Made of stacks of membranes called .... Thylakoids are part of the GRANA (visible as green clusters) that are suspended in the stroma (.... portion) of the chloroplast.Inside the thylakoids are pigments called CHLOROPHYLLS ARE excited by light.
dna coils in division and assembles into visible
The light independent reactions (Calvin Cycle)We will now use the /// in the form of ATP and NADPH to drive carbon fixation into photosynthate (sugars) using the light independent reactions, also referred to as the Calvin Cycle.The Calvin Cycle controlled by an enzyme = ///// . It can work with CO2 as well as with O2. If it fixes CO2, it's helping with ////.If it works with O2, the plant is going through photorespiration (do not confuse this with cellular respiration). Photorespiration is an energy ..... way to build CO2 up in a plant so that it can photosynthesize.
Photorespiration effects the efficiency of photosynthesisRUBISCO can either fix carbon dioxide or oxygen. So what happens if there is more oxygen present in the stroma than carbon dioxide? Oxygen is needed for cellular respiration in the mitochondria, but it's NOT GOOD thing to have in abundance in the chloroplast. If there is excess oxygen, RUBISCO will stick it on .... Then it will use that RuBP for .... down and generation of .... Breaking it down and liberating carbon dioxide will use a LOT of ATP and ///// but not generate .... until we fix the generated carbon dioxide using MORE ATP and NADPH. This makes an unhappy plant that is struggling to feed itself.