VincenTragosta - Tanya, Jawab, dan Belajar Tanpa Batas Logo

Questions in biology

[Terjawab] Determine if the statement is true or false, and why. "The key to cell differentiation is that only some of the genes in a cell are expressed at any one time." A. False, it should read "The key to Protein Synthesis is that only some of the genes in a cell are expressed at any one time." B. False, it should read "The key to cell differentiation is that all of the genes in a cell are expressed at the same time." C. True D. False, it should read "The key to cell differentiation is that only one of the genes in a cell is ever expressed at any one time."

[Terjawab] Which of the following elements is an essential component of the human diet? a) copper b) silver c) aurum d) cadmium e) germanium

[Terjawab] Carbon in the ocean originates from the atmosphere. True or False?

[Terjawab] Which of the following processes does the body NOT use protein to perform? A. repairing muscles B. producing hormones C. making hemoglobin D. absorbing certain vitamins

[Terjawab] Are systematic observations or measurements, preferably made under controlled conditions? A. Hypotheses B. Theories C. Laws D. Experiments E. Quantitative observations

[Terjawab] A large portion of precipitation in the rainforest occurs as a result of a. perspiration b. respiration c. oxidation d. transpiration

[Terjawab] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Terjawab] Cardiac muscles are considered smooth muscles. Please select the best answer from the choices provided. A. True B. False

[Terjawab] Living organisms do not play a role in the water cycle. Please select the best answer from the choices provided. A. True B. False

[Terjawab] A. Having allosteric enzyme set up? Inhibitor binds to active site to speed up the reaction B. Inhibitor binds to regulatory site to increase rate of reaction C. Activator binds to regulatory site to activate the reaction. D. Activator binds to active site to initiate the reaction Which of the following is correct about the movement of water in plants? A. moves against a water potential gradient B. across the phloem tissue by diffusion C. by using energy until it reaches to the xylem. D. across the tissues of a plant by osmosis. What will happen to the growth of the plant when you remove indole-acetic acid from the main shoot part of the plant? A. The plant will bush out B. It stimulates dropping of leaves. C. The growth of side shoots will slow down. D. The main shoot of the plant elongates