Concept explainers
The cell theory states that
- all living things are composed of cells.
- cells are the smallest units of living organisms.
- new cells come from pre-existing cells by cell division.
- all of the above.
- a and b only.
Introduction:
The cells form aggregate to function as individual unit called a tissue. The tissues of different types regulating one specific function forms organs and various organs destined to control an individual system form organ system of the body.
Answer to Problem 1TY
The correct answer is option (d) all of the above.
Explanation of Solution
Explanation/justification for the correct answer:
Option (d) all of the above.The cell theory states that all living organisms are made up of cells that are the smallest and the most fundamental unit of the living organism. The cells arise from already existing cells as a result of cell division. These three postulates define cell theory. So, the correct answer is option (d).
Explanation for incorrect answer:
Option (a) all living cells are composed of cells.The cell theory states three postulates and explains that all living organisms are made up of cells, but this in only the only postulate of cell theory. So, this is an incorrect option.
Option (b) cells are the smallest units of living organisms.According to cell theory the cells are the most fundamental and smallest component of the living organisms, but this is not the only postulate of cell theory. So, this is an incorrect option.
Option (c) new cells arise from pre-existing cells by cell division.New cells arise from pre-existing cells is the postulate of cell theory given by Rudolf Virchow, but this is not the only postulate of cell theory. So, this is an incorrect answer.
Option (e) a and b only. According to cell theory the living organisms are made up of cells and the new cells come from pre-existing cells through cell division but there is also a third postulate stating that cells are the smallest unit of living organism. So, this is an incorrect answer.
The cell theory states that all living cells are made up of smallest unit called cells that arise from pre-existing cells through cell division. Hence, the correct answer is option (d) all of the above.
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Chapter 4 Solutions
Principles of Biology
- Every cell is descended from another cell. This idea is part of _________. a. evolution b. the theory of heredity c. the cell theory d. cell biologyarrow_forwardModern cell theory states: Group of answer choices All cells will arise spontaneously, all cells require oxygen and all cells are composed of one or more cells. All organisms are composed of one or more cells, all cells require oxygen and all cells arise by division of other cells. All organisms are composed of one or more cells, all cells are the smallest living things and all cells arise by division of other cells. All organisms are composed of one or more cells, all cells arise spontaneously and all cells vary in size and shape.arrow_forwardWhich statement is part of the cell theory? All cells are the same. Cells are able to make new organisms. Cells are independent structures. All cells are produced from other cells.arrow_forward
- 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.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 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.arrow_forward
- 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.arrow_forwardWhich statement is NOT a component of the cell theory? Group of answer choices All cells have the same basic chemical composition Cells are the basic structural and functional units of life. Cells form through spontaneous generation. All living things are made of cells.arrow_forwardWhich of the following is NOT part of the cell theory? All living things are composed of one or more cells Cells are the basic unit of life Cells MUST contain DNAarrow_forward
- What statement below would not be considered part of "cell theory". All cells arise from other cells. Cells are the structural and functional units that make up all living organisms. Cells can reproduce. Individual cells do not have a metabolism.arrow_forwardWhich statement is not part of the cell theory? All plant cells require nonliving material to function. All organisms are made of one or more cells. Cells are the basic units of structure and function in organisms. All cells come from preexisting cells.arrow_forwardAll of the following statements are from the modern cell theory except •All Living organisms are made up of one or more cells •The smallest unit of life is a cell •All cells arise from a pre-existing cell •Bacterial Cells are eukaryoticarrow_forward
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