Cell Structure & Function
Which would be the best evidence that a cell is using active transport to move a substance across its cell
membrane?
A Substances are moving rapidly across the cell membrane.
B ATP is being rapidly consumed near the cellular membrane.
C Substances are moving from high to low concentrations.
D Substances are moving through channels in the cell membrane
B ATP is being rapidly consumed near the cellular membrane.
Which term best describes the type of cell division in which parent cells produce daughter cells with the same number of chromosomes as the parent cells?
What is Mitosis
Which kingdoms have photosynthetic organisms?
A. fungi and plants
B. fungi and protists
C. protists and plants
D. plants and animals
What is C protists and plants
A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
A. osmosis
B. photosynthesis
C. protein synthesis
D. respiration
What is C. Protein Synthesis
The crab Lybia tessellata carries a pair of sea anemones on its claws. The crab uses the sea anemone’s stinging tentacles as protection and the sea anemone obtains small food particles released by the crab as it feeds. Which type of symbiotic relationship does this best illustrate?
A. commensalism
B. mutualism
C. parasitism
D. predation
What is B-mutualism
Placing wilted lettuce in cold water will make it crisp again. Which statement best describes what happens to restore the lettuce to its original condition?
A. Water left the lettuce cells by diffusion.
B. Water entered the cells of the lettuce by osmosis.
C. Osmosis caused salts to enter the lettuce cells.
D. Salts in the leaf caused water to leave the cells.
What is B-Water entered the cells of the lettuce by osmosis.
This process occurs in the nucleus and produces a molecule of mRNA
What is Transcription
According to fossil records, the horses that lived 50 million years ago were much smaller, weaker, and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?
What is Natural Selection
In which way are photosynthesis and cellular respiration different?
A Cellular respiration stores ATP, while photosynthesis releases ATP.
B Cellular respiration produces oxygen, while photosynthesis uses oxygen.
C Photosynthesis releases energy, while cellular respiration stores energy.
D Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
What is D. Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
In an ecosystem, which is the most likely reason for an increase in the producer population if there is an increase in the carnivore population?
A. fewer herbivores
B. higher temperatures
C. less food
D. more oxygen
What is A fewer herbivores
This organelle is the site of aerobic cellular respiration in eukaryotic cells.
What is Mitochondrion
Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children?
What is 50% Hh and 50% hh
2:2 or 1:1
Which would most likely favor species survival in changing environmental conditions?
A. genetic recombination (crossing over)
B. energy involvement in gamete production
C. length of life cycle
D. number of offspring produced
A genetic recombination
This introduces genetic variation!
In humans, glucose is kept in balance in the bloodstream by insulin. Which concept does this best illustrate?
What is Homeostasis
Which sequence shows increasing ecological levels of organization?
A. organism, population, community, ecosystem
B. ecosystem, population, organism, community
C. community, ecosystem, population, organism
D. population, organism, ecosystem, community
What is A organism, population, community, ecosystem
A sugar, a phosphate group, and a nitrogen base form which is the building block (monomer)?
What is nucleotide
Some flowers show incomplete dominance. If RR = white and rr = red, which phenotypic ratio would be expected in the offspring of two pink flowers?
1 Red: 2 Pink: 1 White
A plant nursery only grew one type of
tomato plant. All of their tomato
plants died from the same disease.
What was most likely true of the
tomato plant population?
A They had a lot of resistance to
disease.
B They had a few plants that were
resistant to the disease.
C They had too much variation in
their genes.
D They had little variation in their
genes
D They had little variation in their
genes
What process best explains how a nerve cell and a muscle cell can both develop from the same fertilized egg?
A differentiation
B natural selection
C selective breeding
D genetic engineering
A differentiation
Which will most likely happen if the decomposers are removed from the carbon cycle?
A. The amount of carbon dioxide in the atmosphere will increase.
B. The amount of carbon dioxide in the atmosphere will decrease.
C. The amount of carbon dioxide used by producers will increase.
D. The amount of carbon dioxide needed by consumers will decrease.
What is B The amount of carbon dioxide in the atmosphere will decrease.
Name the three phases of Interphase in the correct order.
G1, S, G2
An intestinal cell in a butterfly contains 12 chromosomes. How many chromosomes would its egg cell contain?
6 chromosomes
Evolution by Natural Selection is a theory well known in the scientific community. What is some evidence that supports this theory (name three lines of evidence)?
What is Fossil evidence, Anatomical evidence: Homologous structures, DNA evidence, and embryological evidence
What is the function of enzymes in biological systems?
A. Enzymes act as substrates when the necessary proteins are unavailable.
B. Enzymes act as products to create new chemical reactions.
C. Enzymes act as catalysts to drive chemical reactions forward.
D. Enzymes speed up chemical reactions by increasing the activation energy.
What is C Enzymes act as catalysts to drive chemical reactions forward.
When an environment has reached its carrying capacity for a certain population, which of the following is true?
A. Growth and immigration rate is equal to death and emigration rate.
B. Growth and immigration rate is greater than death and emigration rate.
C. Growth and immigration rate is less than death and emigration rate.
D. Growth rate is exponential.
What is A. Growth and immigration rate is equal to death and emigration rate.