Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 19.4, Problem 2R
Summary Introduction
To Review:
The importance of bone morphogenetic protein 4 (BMP4) in the formation of beak using the results obtained by the experiment performed in the question.
Given:
In the given experiment, researchers introduced varying concentration of BMP4 protein in the embryo’s beak grown region and measured the size of the beak after the development. The table given below shows the result of the concentration of BMP4 on the beak size in the embryos.
Introduction:
BMP4 is a protein, which controls cell division in embryonic tissues. BMP4 along with calmodulin influences the structure of beak in birds. This depends on the time when they are expressed in their life cycle of the cell.
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1. The evolution/development of the skeletal system found in the Deuterostomes, is made up of two molecules, Ca+2PO4-2 and collagen These molecules are produced released from by a specialized type of stem cell. Therefore, one would expect that these stem cells perform which of the following a) the storage and the release of Ca+2PO4-2 and collagen from vesicles from the Golgi apparatus, b) high levels of protein synthesis c) active transport of amino acids and ions into the stem cells through active transport, d) oxidation of pyruvate by the mitochondria, e) all are correct.
2. A multicellular eukaryote cell typically has enough available ATP to meet its needs for about 90 seconds. What would cause an active cell to exhaust its ATP supply so quickly? A) regular rest is a cellular requirement. B) Photosynthesis used up all ATP. C) ATP is transported into other cells. D)…
(If anyone can please help me, I need a short explanation of why the answer to each question is correct)
1. The evolution/development of the skeletal system found in the Deuterostomes, is made up of two molecules, Ca+2PO4-2 and collagen These molecules are produced released from by a specialized type of stem cell. Therefore, one would expect that these stem cells perform which of the following a) the storage and the release of Ca+2PO4-2 and collagen from vesicles from the Golgi apparatus, b) high levels of protein synthesis c) active transport of amino acids and ions into the stem cells through active transport, d) oxidation of pyruvate by the mitochondria, e) all are correct.
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Life: The Science of Biology
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