Char of Life
True or false: You need at least 4 of the 7 characteristics of life to be considered living.
False
What is a constant in an experiment?
things that stay the same
What is the main function of carbohydrates
short term energy
What is a function of proteins?
build muscle, structure, increase reaction speed
What is the function of an enzyme?
speed up chemical reactions
Which characteristic of life matches the statement:
Female dog produces a litter of 6 pups
reproduction
What is an independent variable?
what the scientist changes
What are two functions of lipids?
insulation
protection
energy storage
long term energy
What are two examples of nucleic acids?
DNA and RNA
True or false: Enzymes increase the amount of activation energy needed to start a reaction
False
Which characteristic of life matches this statement:
Mammals have skin cells, blood cells, and nerve cells
cells
What is a dependent variable?
what you observe/measure
What elements make up carbohydrates?
CHO
What elements make up proteins?
CHON
Why are enzymes/substrates called 'lock-and-key'?
specific shape
What does homeostasis mean?
balance/stability
What is the control in this experiment?
students with no gummy worms
What is the monomer and polymer of carbohydrates?
monosaccharide
polysaccharide
What is the monomer of proteins?
amino acids
What elements make up enzymes?
CHON
What are all 7 characteristics of life?
cells, homeostasis, adapt, reproduce, grow/develop, energy, DNA
Ms. Woods wants to test whether giving students gummy worms before an exam helps them get higher scores. She gives 1 student 5 gummy worms, and another student 10 gummy worms before the exam. The rest of the students had no gummy worms.
What is the independent variable and the dependent variable?
DEP: grade on exam
What are 2 examples of carbs and 2 examples of lipids?
Carbs: starch, sugars, cellulose, chitin
Lipids: fats, oils, waxes, steroids
What is the function of nucleic acids?
store, transfer, and transmit genetic information
What are 3 ways you can 'denature' an enzyme?
competitive inhibitor
non-competitive inhibitor
change pH
change temp