Cell Biology Questions
Explore questions in the Cell Biology category that you can ask Spark.E!
t/f: organelles are made during growth phase 2
t/f: mitosis is the process in which the nucleus of the cell divides
t/f: the correct order of phases of the cell cycle is G1-S-G2-M
t/f: cytokinesis is the division of the cytoplasm
t/f: interphase consists of mitosis and cytokinesis
t/f: the S checkpoint, just before entry into the S phase, makes the key decision of whether the cell should divide
t/f: a mass of abnormal cells is called a tumor
t/f: DNA replication results in identical chromosomes
t/f: bacteria divide cells by binary fission
t/f: a cell spends most of its life in growth phase 1 of the cell cycle
What type of macromolecule is an enzyme?
how many types of reactions can each enzyme facilitate and why
By free ribosomes in the cytoplasmMany mitochondrial proteins are encoded by genes located on nuclear chromosomes rather than on the mitochondrial DNA. Such proteins are made by free cytoplasmic ribosomes. These are transported to the mitochondria by special chaperone proteins and then imported into the mitochondrial matrix through both the outer and inner mitochondrial membranes.
Fatty acidsAny food that results in production of pyruvate will cause lactate acidosis. Fatty acids are the only molecules that do not generate any pyruvate. Some amino acids are metabolized to form pyruvate, and carbohydrates are broken down to glucose, which generates pyruvate as the end-product of glycolysis.
defect in pyruvate oxidationdefect in the mitochondrial electron transport chainDefect in pyruvate oxidation will result in accumulation of pyruvate, which will then be converted to lactic acid via the lactic acid fermentation pathway. A defect in the ETC will prevent regeneration of NAD+ from NADH; high NADH and low NAD+ then cause pyruvate to be fermented to lactic acid.
which is the only part of cell respiration to happen outside of the mitochondria and without oxygen
Where does the energy that respiration releases come from?
After the making of glucose the plant releases
aerobic respiration involves the combination of...
Deep red + violet + brown leaves can still photosynthesis because...