Multiple Choice Flashcards
Which of the following is NOT a goal of science?
To use data to support a particular point of view
Scientific hypotheses must be proposed in a way that…
Enables them to be tested
The ability to reproduce results is an important part of any…
Experiment
A theory…
May be revised or replaced
The space surrounding the nucleus of an atom contains…
Electrons
What makes up a molecule of water?
Two atoms of hydrogen and one atom of oxygen
What type of ion forms when an atom loses electrons?
Positive
The most abundant compound in most living things is…
Water
When salt is dissolved in water, water is the…
Solvent
A substance with a pH of 6 is called…
An acid
A monosaccharide is a…
Carbohydrate
If a reaction in one direction releases energy, the reaction in the opposite direction….
Absorbs energy and is endergonic
Enzymes affect the reactions in living cells by changing the…
Speed of the reaction
Which cell structure contains the cell’s genetic material and controls many of the cell’s activities?
Nucleus
Cells fall into two broad categories, depending on whether they…
Have a nucleus
Eukaryotes usually contain
A nucleus, genetic material, and specialized organelles
What is not found in a nucleus?
Cytoplasm
Which structures carry out cell movement?
Microtubules and Microfilaments
Which organelle breaks down compounds into small particles that the cell can use?
Lysosome
Which organelle make proteins using coded instructions that come from the nucleus?
Ribosome
Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
Mitochondrion
Which of the following is a function of the cell membrane?
Regulates which materials enter and leave the cell
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes…
Water to move into the cell
The cells of multicellular organisms are…
Specialized to perform particular functions
