Which of the following would be the least desirable model species to learn how proteasomes govern rates of cell division? Select one: a. rats b. zebra fish c. yeast d. humans e. sea urchins
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- Which of the following is true about a cystolic protein that was incorrectly sent to the Golgi Apparatus. Select one: a. there was an error in translation b. there was an error in ubiquitination of the protein c. there was an error in cell division d. there was an error in protein sorting e. there was an error in protein foldingWhat is a proteome? a. The collection of all genes encoding proteins b. The collection of all proteins encoded by the genome c. The collection of all proteins present in a cell d. The amino acid sequence of a proteinWhich of the following best describes an observation/experiment from a model organism that has advanced our understanding of cell biology? Select one: a. Radiation caused the denaturation of actin proteins in yeast. b. The risk of cancer increases as humans age. c. COVID is pathogenic due to the shape of specific of interacting proteins d. Fruit flies have wings that help them fly. e. Hemoglobin is found in mice as well as rats and pigeons.
- Which of the following statements about cell division in prokaryotes and eukaryotes is correct? a. In prokaryotes, all cells divide if conditions are favourable; in eukaryotes, only a few cells divide, and they do so according to a developmental program b. After cell division, the daughter cells are genetically identical in prokaryotes but genetically different in eukaryotes c. In prokaryotes, only a few cells divide to ensure survival of the colony without depleting too many resources from the environment d. The process of segregation is more complicated in prokaryotes than in eukaryotes e. Reproductive signals for initiation of cell division are intracellular for prokaryotes and extracellular for eukaryotesWhich of the following BEST represents the function of DNA in a cell? A) to provide structure and support to the cell B) to store genetic information C) to speed up the rate of reactions in the cell D) to digest macronutrients in the cell’s cytoplasmAn enzyme such as ligase is a protein molecule. When high temperature is applied to ligase, the protein molecule changes its shape and is no longer able to perform its function. The enzyme is said to be denatured. If ligase was denatured in a cell, how would it affect its cell cycle? Select one: a. The cell would not be able to obtain amino acids. b. The cell would not be able to transcribe DNA. c. The cell would not be able to produce protein molecules. d. The cell would not be able to replicate.
- What is a signal peptide? A. A sequence of amino acids in endomembrane system proteins that directs them to the endoplasmic reticulum B. The sequence of amino acids in every protein that determines its location in the cell C. A protein that directs other proteins where to go in the cell D. A sequence of amino acids that gets added to proteins that are free-floating in the cytoplasmWhich of the following correctly compares how plant and animal cells differ?a. Plant cells have chloroplasts and mitochondria for energy, but animal cells do not have mitochondria.b. Plant cells have a cell membrane and cells walls for suppo, but animal cells do not have cell walls.c. Plant cells have ribosomes for synthesis, while animal cells have the Golgi apparatus.d. Plant cells have many small vacuoles for storage, while animal cells have one large central vacuole.What is endomembrane system? Please name all 5 ways to study endomembrane system and explain any one of them in detail
- Stem cells (cells with little or no determination) are useful in many kinds of biological research for which of the following reasons? Group of answer choices A. they do not have particular cell fates B. None of their DNA is methylated C. They have unique cytoplasmic determinants D. They have no microRNA E. They have not differentiated3.12) Draw, label and explain what is happening to the chromosomes, cytoskeleton and membranes at each stage of mitosis and interphase. To demonstrate deep thinking you should represent the mechanisms of each step and why the steps have to be in the order then are in because of the mechanisms. A design justification (a short paragraph) A description of how the work demonstrates your deep thinking (a short paragraph) A description of how you are using constructive feedback for continuous improvement, and giving constructive feedback to others (a short paragraph) The creation itself (or a representation of it) asap please answer allBelow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a.The role of centrosomes in the plant cell is not clear since it can proceed cell division with or without it. b.The central vacuole's function includes serving as a lysosome in the plant cell. c.Metabolic processes in the prokaryotic cell are all done in its cytoplasm.