Chapter 1
My toaster doesn't work, what part of the scientific method are you looking at? 30 seconds
observation
Which of the following is not one of the most common elements in living things? 30 seconds
carbon, oxygen, iron, nitrogen
Iron
When a protein doesn’t work correctly it is called …
40 seconds
Denatured
Plants Fungi and bacteria all have:
30 seconds
Cell walls
What type of bonds makes sugars
40 seconds
Glycemic
A ____ is a possible explanation for an observation, it allows for the predictions to be made. 30 seconds
Hypothesis
The particles that are found in the nucleus of an atom are:
30 seconds
Protons and neutrons
Digestion of sucrose, a disaccharide, results in :
30 seconds
Two monomers
Who first described cells?
30 seconds
Robert Hooke
A student eats a meal containing bread, which is rich in starch. What type of macromolecule is starch, and what is its main function in the body?
45 seconds
Carbohydrate. Starch is used primarily for energy storage/providing energy.
If a sunflower moves wherever the sun is located, what type of response is it? 30 seconds
a) positive response
b) negative response
c) neutral response
Positive response
Why can some insects strife on the surface of water?
40 seconds
because of the surface tension of water being stronger that their weight
A fat molecule is formed when three fatty acids join a glycerol through the process of…
40 seconds
Dehydration reaction
Prokaryotic cell movement is attributed to:
30 seconds
Flagella
A student notices that plants placed near a window grow taller than plants kept farther away. They hypothesize that light intensity affects plant growth. What would be the independent variable, dependent variable, and an appropriate control?
1 minute
the type of reasoning derived form of logical thinking that uses related observations to arrive at a general conclusion. 30 seconds
Inductive
Isotopes in an atom differ in their:
30 seconds
Number of neutrons
Formation of large molecules by the removal of water
30 seconds
Dehydration
Ribosomes are made up of:
30 seconds
Protein and RNA
Scientists discover a cell that contains DNA, ribosomes, a plasma membrane, and a cell wall, but no nucleus or membrane-bound organelles. Is the cell prokaryotic or eukaryotic? Explain how you know.
40 seconds
Prokaryotic. The absence of a nucleus and membrane-bound organelles is characteristic of prokaryotic cells. The presence of DNA and ribosomes is consistent with both cell types.
which term does not belong with the others? 30 seconds
Bacteria, Archaea, Protist, Eukarya
Protist
Is can prevent pH solutions from changing by either releasing or absorbing H+ in a solution
30 seconds
Buffer
Which nitrogenous base is only found in RNA?
30 seconds
Uracil
During which cellular process do all 3 forms of RNA associate?
40 seconds
protein synthesis
A scientist discovers a molecule that is made primarily of carbon and hydrogen and contains many C–H bonds. The molecule is insoluble in water and stores a large amount of energy. What type of biological macromolecule is it, and which property of the molecule explains its behavior in water?
1 minute
Lipid. Lipids contain many nonpolar C–H bonds, making them hydrophobic/nonpolar and therefore poorly soluble in polar water.