Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 25, Problem 8TYK
Summary Introduction
Introduction:
Living organisms usually have an internal
When protocells first developed, they had a membrane that permitted only some substances to pass through. They can pass on genetic information that they store in the form of plasmids and have a large amount of an aqueous solution called cytoplasm.
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Students have asked these similar questions
What characteristic of mitochondria and chloroplasts makes themdifferent from other organelles and suggests they were onceindependent organisms?a. They have a specialized function in the cell.b. They are surrounded by a membrane.c. They contain enzymes.d. They have their own DNA and ribosomes.
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.
What structure cannot be found in ALL cells? Explain why
A. Mitochondria
B. DNA
C. Cell membrane
D. Cytoplasm
F. Ribosomes
Chapter 25 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 25.1 - Why is the reducing nature of early Earths...Ch. 25.1 - Prob. 2SBCh. 25.2 - Prob. 1SBCh. 25.2 - Prob. 2SBCh. 25.2 - Prob. 3SBCh. 25.3 - Prob. 1SBCh. 25 - Prob. 1TYKCh. 25 - Which of the following is not a characteristic of...Ch. 25 - Prob. 3TYKCh. 25 - According to the OparinHaldane hypothesis, the...
Ch. 25 - Prob. 5TYKCh. 25 - Prob. 6TYKCh. 25 - In a population of self-replicating RNA molecules,...Ch. 25 - Prob. 8TYKCh. 25 - Prob. 9TYKCh. 25 - Prob. 10TYKCh. 25 - Prob. 11TYKCh. 25 - Prob. 12TYKCh. 25 - Prob. 13TYKCh. 25 - Prob. 14TYKCh. 25 - Prob. 15TYKCh. 25 - Prob. 16TYKCh. 25 - Prob. 1ITDCh. 25 - Prob. 2ITDCh. 25 - Prob. 3ITD
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- While how the first cells formed is still unknown, scientists suspect that the first active biological macromolecule wasa. protein.b. DNA.c. RNA.d. carbohydrates.arrow_forwardWhich of the following would have been found in an early prokaryotic cell? a membrane-bound organelles b nucleus c chloroplasts d DNAarrow_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_forward
- Suggest how the Golgi apparatus could have evolved. Sketch a simple diagram to illustrate your ideas. For the Golgi apparatus to be functional, what else would be needed?arrow_forwardWhich letter is the answerarrow_forwardThere are two types of eukaryotic cells. Describe three differences between plant and animal cells?arrow_forward
- Cells in a multicellular organism have specialized to such an extent that they have little in common with single-celled organisms. (True orfalse?)arrow_forwardA human nerve cell that has an abnormal shape most likely has adefective a. cell wall.b. cytoskeleton.c. nucleus.d. ribosome.arrow_forwardWhat is a microfilament? A. A cytoskeletal element composed of tubulin that forms a dynamic scaffolding for many cellular processes involving movement B. A type of energy-using protein that interacts with cytoskeletal elements to move the cell C. A stable cytoskeletal element composed of fibrous proteins that structurally supports cells and tissues D. A cytoskeletal element made of actin that reinforces cell membranes and functions in cell movementarrow_forward
- From the image, what is the normal function of the missing structure? A. A lipid bilayer controlling the movement of substances into and out of the cell B. A motor protein that "crawls" along microtubules to contract and release them, which provides movement C. A cytoskeleton element composed of tubulin subunits to provide structure for movement of the cellarrow_forwardWhich of these did Stanley Miller place in his experimental systemto show that organic molecules could have arisen from inorganicmolecules on the early Earth?a. microspheresb. purines and pyrimidinesc. gases found in the atmosphere of early Earthd. only RNAe. All of these are correct.arrow_forwardFor items 6-15 choose the letter of the best answer. No need to write the explanations. 6. How does a cell wall functions as protection for the cell? A. It protects the cell from insects. B. It controls passage of substances C. It maintains cell shape during excess water in cells D. It contains genetic material 7. It is an organelle for assembling ribosomes with genes for rRNA synthesis. A. Chromosomes B. Mitochondria C. Nucleolus D. Ribosomes 8. Why do phospholipids tend to organize into a bilayer in an aqueous solution? A. it hides its tail from water B. It hides its tail like a dog C. It arranges itself like a comb D. Its saturated fatty acids are straight 9. Which of the following matches with a microtubule's function? A. Cellular respiration B. Digestion C. Movement D. Photosynthesis 10. Which structure clearly distinguishes a eukaryote from a prokaryote? A. Chloroplast B. Flagella C. Nucleolus D. Vacuole 11. Which organisms have the smallest size of cells? A. Animals B.…arrow_forward
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