Question
145342
Biology Quiz
Category:
Cell biology
Just need answers to the 25 questions PreviewQ1. Knowing that cells duplicate themselves one could reasonably predict that individual chromosomes canQ2. The point of attachment for two chromatids is calledQ3. The structure responsible for spindle formation in animal cell is theQ4. The process of mit...
updated 3 years ago
Category:
Cell biology
The enzyme hexokinase transfers a phosphate from ATP to glucose. This reaction is important for two reasons. What are they?
Editor May 3, 2021
Answer Glucose-6-phosphate cannot diffuse through the membrane because of its negative charges, so the phosphorylated glucose can no longer leave the cell. The addition of the phosphoryl group begins to (View full solution)
updated 3 years ago
Category:
Cell biology
Following the production of membrane extracts using the non-ionic detergent Triton X-100, you analyze the membrane lysates via mass spectrometry and note a high content of cholesterol and sphingolipids. Furthermore, biochemical analysis of the lysates reveals potential kinase activity. What have you...
Editor December 29, 2020
Answer C. lipid rafts Explanation Lipid rafts are insoluble in nonionic detergents such Triton X-100 and when sucrose gradient is applied, they can be easily separated from other membrane domains. (View full solution)
updated 3 years ago
Category:
Cell biology
what time of day do plants produce the most glucose? why
Editor December 2, 2020
Answer Plants produce more glucose during the evening and at night. This is because plant produces more glucose than it uses during respiration, a process that occurs when there is (View full solution)
39742
What is the difference between Ribozymes and RNPs (ribonucleoproteins)? What are examples of each?
updated 3 years ago
Category:
Cell biology
What is the difference between Ribozymes and RNPs (ribonucleoproteins)? What are examples of each?
Editor November 27, 2020
Answer Ribozymes are RNA enzymes found in ribosomes that catalyzes a chemical reaction whereas ribonucleoprotein is a complaex that is formed between RNA and RNA-binding proteins Explanation Examples of ribonucleoproteins includes the ribosome, (View full solution)