Bio
organelles - tissues- organs - organ system- organism This sequence can be completed correctly by inserting
"Cells" between the organelles and tissues
In order to trap the bacteria and prevent them from going through the filter, she must make sure the pores in the filter are no larger than
1 um
Students in a different science classes carried out the same experiment. The data they obtained did not support the hypothesis that increased exercise results in increased heart rate. The most scientifically sound way to deal with this situation.
Ask students in a third class to do the experiment and see if their results support the hypothesis
More energy can be released from a fat molecule than from a glucose molecule because the fat molecule contains more
Chemical bonds
During the process of photosynthesis, energy from the sun is converted to
Chemical energy in the bonds of organic molecules
Which answer choice best explains the movement of some molecules between the model cell and the solution in the beaker
Direction of flow molecules = from high to low concentration, Energy Use = without using cellular energy
Which sequence represents structures organized from the least complex to most complex
Nucleus - nerve cell - brain - nervous system
Chemicals that help chemical reactions occur at faster rates in living organisms are known as
Organic catalysts
The shape of each of the molecules is important because
The shape of a molecule determines how it functions in chemical reactions
The most likely reason the action of the enzyme decrease after 40 degrees is that
The shape of the enzyme changes due to environmental conditions
What will the solutions in the beaker and the tubing look like after 20 minutes
The starch solution in the tubing will be blue black and the indicator solution in the beaker will not change color
Cells - x - Organs - Organ system - organism Level x most likely represents
Tissues
Only electron microscopes can be used to view
Viruses
Skin, Nerve, and muscle cells are most similar in the
information stored in the DNA
What is the nucleus's job
it is responsible for the storage of information
In a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are preformed by
organelles
In the cells of the human body, oxygen molecules are used directly in the process that
releases energy
When using a compound light microscope, the most common reason for staining a specimen being observed is to
reveal details that are otherwise not easily seen