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Explore questions in the Uncategorized category that you can ask Spark.E!
- What kind of microscope is best for observing living specimens?
- What is the total magnification if the eyepiece is 10x and the objective lens is 4x?
- Mitosis produces how many body cells? Are they haploid or diploid? Identical or unique?
- When using a microscope, resolution refers to the microscope's ability to do what?
- Which size cell is best at moving materials across the cell membrane efficiently?
- What structure on the bottom of a leaf allows gas exchange with the air?
- What kind of bond links one water molecule to another water molecule?
- What is found in the nucleus of an atom? What is found outside the nucleus?
- Draw diagram of the pH scale. Label acids, bases, neutral, the #'s 1, 7, 14 Label acids, bases, Drano (drain cleaner).
- Who discovered the cell, what was he looking at, and what year was it discovered?
- 68. Sister chromatids begin to separate .( A) Telophase ( B) Interphase ( C) Cytokinesis (D ) Prometaphase (E ) Anaphase
- 70. Microtubules begin to attach to the cen tromeres of the sister chromatids ( A) Telophase ( B) Interphase ( C) Cytokinesis (D ) Prometaphase (E ) Anaphase
- 38. Products of light reactions(A ) Glucose and oxygen (B ) C*O_{2} and water ( C ) ATP and NADPH (D ) ADP and P ( E ) Glucose and water
- 66. Cytokinesis begins during this final stage of mitosis .( A) Telophase ( B) Interphase ( C) Cytokinesis (D ) Prometaphase (E ) Anaphase
- 71. The nucleus divides during this phase .
- 52. What would be the result if one of the amino acids were changed( A ) The primary structure of the protein would not be altered but its tertiary structure and function would be altered . ( B ) The tertiary structure would be changed but the protein's function would not be affected ( C ) The primary structure , tertiary structure and the biological function would all be altered . ( D ) There would be no change to the structure or the function of the protein .
- 21. A culture of spirogyra (an autotropic algae) is maintained in a water solution containing dissolved carbon dioxide and a source of phosphates but lacking nitrogen compounds. A researcher determines the rates of synthesis of several organic compounds found in the Spirogyra before and after several weeks in the water solution. Which of the following best illustrates a likely result of this experiment?
- 63. When oxygen is unavailable a yeast cell can obtain ATPA. through glycolysis B. by breaking down carbon dioxide C.through oxidative phosphorylation D. by substituting carbon dioxide for processes requiring oxygen E. by breaking down water to obtain small amounts of energy
- 33. Which of the following pathways for the transformation of cellular energy most likely evolved first?(A ) Cyclic photophosphorylation (B ) Citric acid (Krebs ) cycle ( C) Calvin cycle (D ) photosynthesis ( E) Glycolysis
- 72. The cell divides during this phase .