What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 4, Problem 1MC
Summary Introduction
Introduction:
The cell theory is a unifying principle in biology and it stems from the fact that a cell is the smallest unit of life.
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The cell theory states:a. Cells form as organelles and molecules become grouped togetherin an organized manner.b. The normal functioning of an organism does not depend on itsindividual cells.c. The cell is the basic unit of life.d. Only eukaryotic organisms are made of cells.
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 is not a principle of the cell theory? a. Every cell arises from another cell. b. A cell is alive even as part of a multicelled body. c. Eukaryotic cells have a nucleus, and prokaryotic cells do not. d. The cell is the smallest unit of life.
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What Is Life? A Guide to Biology with Physiology
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- Which of the following best distinguishes a prokaryotic cell from aeukaryotic cell?a. Prokaryotic cells have a cell wall, but eukaryotic cells never do.b. Prokaryotic cells are much larger than eukaryotic cells.c. Prokaryotic cells have flagella, but eukaryotic cells do not.d. Prokaryotic cells do not have a membrane-bound nucleus,but eukaryotic cells do have such a nucleus.e. Prokaryotic cells have ribosomes, but eukaryotic cells do nothave ribosomes.arrow_forwardProkaryotic cells contain all of the following, excepta. cytoplasm.b. plasma membrane.c. DNA.d. a nucleus.arrow_forwardWhich of the following can differentiate prokaryotic cells from eukaryotes (or vice-versa)? A. presence of compartmentalized and membranous organelles B. ribosomal protein synthesis C. location of the genetic material D. cytoskeletal system B, C, D only A, B, C, D A, B, C only A, C, D onlyarrow_forward
- A multicellular organism is: a. A group of differentiated eukaryotic cells that work together to support the function of an organism b. A colony of single-celled organisms O c. The simplest form of life on Earth O d. Only contains prokaryotic cellsarrow_forwardWhich of the following statements supports the concept of the endosymbiotic theory? A. Proteins may be trafficked within the endomembrane system. B. Ribosomes are present in the cytoplasm of prokaryotic cells and eukaryotic cells. C. Chloroplasts have many features in common with bacteria. D. Mitochondria can fuse together to form larger organelles within eukaryotic cells.arrow_forwardRefer to Picture 8 above: Which of the following answers is correct about the type of cells this organelle (where the arrow is pointing) is found in? A. prokaryote; bacteria B. eukaryote; animals C. eukaryote; bacteria D. eukaryote; plant E. prokaryote; plant F. both A and C G. both A and D H. both C and D G. All choices are correctarrow_forward
- Which of the following statements is/are FALSE? A.Prokaryotes have no definite nucleus. B.Chloroplasts are present in all eukaryotes. C.Ribosomes can be found in both prokaryotes and eukaryotes. D.Mitochondria and endoplasmic reticulum are present in eukaryotes only.arrow_forwardWhich of the following statements is not part of the cell theory? A. All cells are surrounded by a cell wall. B. All living cells come from division of preexisting cells. C. Every living organism consists of one or more cells.arrow_forwardWhich of the following statements is false? a. All multicelled organisms have cell walls. b. All multicelled organisms are eukaryotic c. All multicelled organisms have cell membranes. d. The nuclei of multicelled organisms are membrane-bound.arrow_forward
- Differentiate cell membrane from plasma membrane: a. cell membrane is more complex b. the plasma membrane seperates the outside world of prokaryote c. the cell membrane is only present in eukaryotes d. none of the choicesarrow_forwarda) Do you think that most plant and animal cells are similar to does we observed today? b) Both atoms and the cells viewed today are small. Describe at least teo ways in which atoms and cells differ? c) What criteria can you use to distinguish between cells of the organisms belonging to different eukaryotic kingdoms (planta, animals , fungi)arrow_forwardWhich 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.arrow_forward
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