Scientific Method/Misc.
The variable that is deliberately changed by the experimenter is the ________ variable.
What is the independent variable?
This polysaccharide is used by plants for structural support in cell walls.
What is cellulose?
This subatomic particle determines an element’s identity.
What is a proton?
The diffusion of water across a selectively permeable membrane is called this.
The unequal sharing of electrons in water is caused by the difference in electronegativity between these two elements.
What is Oxygen and Hydrogen?
A testable, educated prediction based on prior observations is called this.
What is a hypothesis?
These four classes of macromolecules are essential for life. What are their monomers?
What are monosaccharides (carbohydrates), fatty acids (lipids), amino acids (proteins), and nucleotides (nucleic acids)?
A bond formed by a metal and a non-metal is typically?
What is an ionic bond?
The difference in concentration of a substance across a membrane is called this.
What is concentration gradient?
This process uses cohesion and adhesion to move water upward through narrow tubes, such as plant stems.
What is capillary action?
In an experiment testing how fertilizer affects plant growth, the student measures plant height after four weeks. Name 5 constants.
Answers may vary.
This type of reaction forms polymers by removing a molecule of water.
Dehydration Synthesis
Elements in the same column of the periodic table have the same number of these.
What are valence electrons?
When a cell takes in large particles by forming vesicles, this process is called this.
What is endocytosis?
This property allows lakes to remain liquid beneath ice, protecting aquatic life during winter.
Solid water (ice) is less dense than liquid water
The dependent variable is typically plotted on this axis of a graph.
What is the y-axis?
This bond forms between amino acids during protein synthesis.
What is a peptide bond?
The vertical columns in a periodic table are called?
What are groups or families?
Unlike simple diffusion, facilitated diffusion requires these membrane components.
What are transport proteins (channels or carriers)?
This property allows water to resist temperature change, helping organisms maintain homeostasis.
What is high heat capacity?
After analyzing data, a scientist determines the hypothesis is not supported and reports the findings anyway. This step of the scientific method is called this.
What is drawing conclusions and sharing results.
This carbohydrate polymer is highly branched and used by animals for energy storage.
What is glycogen?
N-3 and anion
Dialysis tubing is often used in labs because it mimics this cellular structure.
What is a selectively permeable membrane?
Water is called this because it can dissolve many ionic and polar substances.
What is universal solvent?