Which 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 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.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter4: Cell Structure

Section: Chapter Questions

Problem 9SA: Which of the following statements is correct? a. Ribosomes are only found in bacteria and archaea....

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Which of the following statements is NOT true about the cell theory? a. All cells arise spontaneously. b. All cells arise from preexisting cells. c. All living organisms are made up of cells. d. Cell is the basic unit of life.
Which 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.
The cell theory is a list of ideas that describe the functions and importance of cells in living organisms. Which of the following statements is not a part of the cell theory? a) Cells divide to make copies of themselves. b) Cells can form from non-living matter. c) All living things are made of one or more cells. d) Cells are the smallest unit of life.
Which of the following statements is NOT part of the cell theory? a. All organisms are composed of one or more cells. b. Cells come from other cells by division. c. Cells are the smallest living things. d. Eukaryotic cells have evolved from prokaryotic cells.
Which 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 cytoplasm
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 folding
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 cytoplasm
A experiment in which cancer cells were injected into the vein leading to the liver demonstrated: Select one: a. Very few cancer cells were trapped in the capillary bed of the liver b. Many cancer cells were trapped in the capillary bed but most of them were not able to escape the blood into the tissues. c. Most of the cancer cells were trapped in the capillary bed but only a small percentage formed macrometastases d. Many cancer cells were trapped in the capillary bed and most of these became macrometastases.
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 differentiated
Which of the following statements is correct? a. Ribosomes are only found in bacteria and archaea. b. Some animal cells are prokaryotic c. Only eukaryotic cells have mitochondria d. The plasma membrane is the outermost boundary of all cells. e. Some cell membranes do not consists of lipids.
The cell theory states thata. all living things are composed of cells.b. cells are the smallest units of living organisms.c. new cells come from pre-existing cells by cell division.d. all of the above.e. a and b only.
Why are proteins important for cells? A - They are the main source for energy inside cells. B - They control all cell structure and function. C - They only break down materials in the lysosome. D - They only create new ribosomes.