Bell work
Which of the following statements describes a scientific theories such as the cell theory?
An explanation of observations made by multiple scientist
Which part of the cell theory is supported by this observation?
Cells perform the basic functions of life
Which of these observations provide evidence to support one of the three points of the cell theory?
Each cell contains chloroplasts that are the site of photosynthesis which produces food
Which of the following is not true concerning enzymes?
Enzymes are changed by the chemical reactions they are a part of
Which of the following conclusions regarding enzymes activity can be supported by the data displayed in the graph?
Enzymes have optimal temperatures at which they broke best
Which best explains the roll of enzymes in living things?
Enzymes lower the activation energy necessary to initiate biological reactions
Which statement best explains why the cell theory is a theory and not a law ?
Information about living organisms can only be classified as a theory because organisms are always evolving
Which of the following is an observation supporting this portion of the cell theory?
Multicellular organisms have the ability to prepare living tissue with newly formed cells through a process called mitosis.
Which of the following structures in the new organisms cell could be used to determine if it is a eukaryotic?
Nucleus
Which statement describes the effect of pH in the performance of Pepsin?
Pepsin is the most efficient in a pH lower than 7
Which of the following is the independent variable in this controlled experiment?
Species of plants from the malvaceae family
How will the concentration of hydrogen peroxide be affected by a sudden decrease of temperature in the body ?
The amount of hydrogen peroxide increases
Which of the following would be best study using a scientific model rather than a more traditional forms of investigations?
Understanding the compostition and characteristics of the interior layers of the earth
Which statement below does not provide evidence to support the cell theory?
We can observe different types of cells in different organisms this is evidence of spontaneous generation.