in Caenorhabditis elegans (roundworm) and three amino acid differences form the
ID: 194963 • Letter: I
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in Caenorhabditis elegans (roundworm) and three amino acid differences form the ubiquitin found in Saccharomyces cervisiea (brewers yeast). Based on this information, which of the following statements is accurate? (BCC BOOK) Which of the following statements is incorrect? (PROFESSOR QUESTION) 7. a. Organs can be found in cells. b. Cells make up organ systems and tissues. Humans are more closely related to yeast than they are to roundworms Yeast, roundworms, and humans all share a common ancestor This data tells us nothing about evolutionary history because molecular evidence relies on DNA. Molecular data can tell us little about evolution because it is usually incompatible with data derived from the fossil record c. Communities make up ecosystems d. There are 4 levels of organization in a a. cell b. 8. Emergent properties: (BCC BOOK) c. Result from the way components within a hierarchical level interact. Explain why our cells are similar to those of a mountain goat but our body plan is much different. a. b. d. c. Arise at each level or hierarchal organization. All of the above. d. 11. Aquaporins are water channel proteins that have been found in membranes of prokaryotes 9. A group of giant pandas inhabit a bamboo forest in China. The male members of the group have testes; testes are organs that are part of the reproductive system. The testes are composed of several cell types, including Leydig cells what secrete testosterone molecules. Which of the following is a correct representation of the hierarchy of biological organization from least complex to most complex? (BCC BOOK) protists, fungi, plants and animals. These proteins have very similar structure in all these organisms, and they function to allow water to move in and out of cells. Based on this information, which of the following statements are accurate (select all that apply). (BCC BOok) All of these organisms are related b. a. Any alteration in the structure of aquaporins would not affect their function in transporting water, a. Testosterone, Leydig cells, testes reproductive system, panda, panda population. Forest community, panda population, panda, reproductive system, testes, Leydig cells, testosterone Testosterone, organelles, Leydig cells testes, panda, reproductive system, panda community Ecosystem, panda, community, panda testes, reproductive system, Leydig cells testosterone Water is important to life The DNA that contains the hereditary information for aquaporins must be conserved. c. d. b. c. 12. The most basic unit of an element is: (INTERNET) a. Proton b. Neutron c. Electron d. Atonm d. 10. Ubiquitin is a small protein (76 amino acids); it 13. Which of the following carries a negative has been found in almost all tissue of eukaryotic organisms and is involved in protein degradation in the cell. The amino acid sequence of ubiquitin found in humans has one amino acid difference from the ubiquitin found charge? (INTERNET) a. Proton b. Neutron c. Electron d. Nucleus pg. 2Explanation / Answer
7.
Option A is incorrect.
Cells can be found in organs.
Organs are higher order structures. Cells are the fundamental structures (basic unit) of life.
8.
Option D is correct.
Emergent properties are collective properties that arise due to heirarchial interaction.
9.
Option C is correct.
Highest organization to least is given by
Forest community > Panda population > Panda > Reproductive system > Testes > Leydig cells > Organelels > Testosterone
10.
Option B is correct.
Molecular data reflects evolutionary history.
Humans, yeast, and worms all evolved from a common ancestor. Hence they show sequence similarities.
11.
Options A, C, and D are correct.
The presence of aquaporins in all organisms suggests that water is essential for life and all these organisms are related.
Since it is an essential gene, its DNA sequence is conserved.
12.
Option D is correct.
The smallest representable unit of an element = Atom
13.
Option C is correct.
Electron = -1
Proton = +1
Neutron = No charge
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