Which of the following is NOT a function of proteins?
A. store and transmit heredity
B. help to fight disease
C. control the rate of reactions and regulate cell processes
D. build tissues such as bone and muscle
What is A (store and transmit heredity)?
100
. Which of the following statements describes how the prokaryotic cells appear different from the eukaryotic cells?
A. The prokaryotic cells are much larger.
B. The prokaryotic cells do not have nuclei.
C. The prokaryotic cells have mitochondria.
D. The prokaryotic cells have a less distinct shape.
What is B (prokaryotic cells do not have nuclei)?
100
These are the products of photosynthesis?
What is glucose and oxygen?
100
Cancer is a disorder in which some cells have lost the ability to control their ____________.
What is growth rate?
100
During Metaphase, chromosomes line up where?
In the middle.
200
Which of the following statements about enzymes is NOT true?
A. Enzymes work best at a specified pH.
B. All enzymes work inside cells.
C. Enzymes are proteins.
D. Enzymes are organic catalysts.
What is B (all enzymes work inside cells)?
200
These 2 organelles help provide cells with energy?
What is mitochondria and chloroplasts?
200
If a plant was placed in the dark, would it still make glucose? Why?
No because there is no light.
200
An adult female shark has 20 chromosomes in each body cell. After meiosis predict how many chromosomes would be present in each daughter cell?
What is 10?
200
. Gene shuffling includes the independent movement of chromosomes during meiosis as well as
A. Mutations from radiation.
B. Changes in the frequencies of alleles.
C. Crossing-over.
D. Mutations from chemicals.
What is C?
300
Enzymes affect the reactions in living cells by changing the
A. products of the reaction.
B. speed of the reaction.
C. temperature of the reaction.
D. pH of the reaction.
What is B (speed of the reaction)?
300
What would happen if the cell membrane became impermeable?
A. Water will diffuse out of the cell and the cell will shrivel.
B. Water will diffuse into the cell and the cell will swell and burst.
C. No food will enter cell, no wastes will exit cell, and the cell will die.
D. The cell will not have any negative effects.
What is C?
300
If carbon dioxide is completely removed from a plant’s environment, what would you expect to
happen to the plant’s production of high-energy sugars?
What is no more sugar would be produced?
300
Unlike mitosis, meiosis results in the formation of _____ genetically _________ cells?
What is 4, different?
300
Which of the following is most likely to bring together two recessive alleles for a genetic defect?
A. inbreeding
B. hybridization
C. genetic engineering
D. transformation
What is A?
400
Enzymes decrease the amount of _________ needed to complete a reaction.
What is energy?
400
What would happen to an animal cell with an internal salt concentration of 0.8% if it were placed in a
salt solution with a concentration of 20%?
What is cell will shrivel or shrink?
400
a process that does not require oxygen
anaerobic
400
In mitosis before cells split, what must happen first?
DNA is copied
400
Ice floats on water because
A. of cohesion.
B. ice has a higher density than water.
C. water shrinks when it freezes.
D. water expands when it freezes