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WorksheetsBiology EOC review 1
Total questions: 6
Worksheet time: 3mins
Which of the following converts food into energy for the cell?
vacuole
mitochondria
cytoplasm
cell membrane
The Burmese python is a non-native snake that has been introduced to Florida through the exotic pet trade. These snakes have thrived in the Everglades National Park because of the warm climate. However, these snakes have a low survival rate in North Florida due to the colder climate in the winter months. The Burmese python’s ability to maintain homeostasis is limited when exposed to below freezing temperatures for longer than 10 hours at a time. The lengthy exposure of below freezing weather conditions results in a decrease of the snake’s body temperature. Which of the following is the best explanation for why the Burmese python’s cells cannot build the needed proteins for proper cellular functioning?
a) The lower body temperature increases enzyme activity resulting in less protein building.
b) The lower body temperature causes the cells to become acidic resulting in less protein building.
c) The lower body temperature causes the cells to become basic resulting in less protein building.
d) The lower body temperature decreases enzyme activity resulting in less protein building.
Recently there was a rare event in the Gulf of Alaska where multiple fin whales washed up dead on Alaskan islands. This unusual event provides an opportunity for grizzly bears to feast on fin whale blubber (fat) prior to the harsh Alaskan winter when the bears will need to hibernate. Which of the following scenarios accurately describes how macromolecules are being used?
a) The proteins in fin whale blubber contain the coded instructions for grizzly bear’s cells to create ions.
b) The nucleic acids in whale blubber are important to calcium storage in the grizzly bear’s bones.
c) The lipids in whale blubber are a rich calorie source that will be stored in the grizzly bear’s cells.
d) The carbohydrates in whale blubber directly convert to hormones that control the grizzly bear’s instincts.
Below is an image that represents the process of osmosis as the movement of water through a semipermeable membrane (a living cell) into a solution of higher solute concentration. This process occurs so that the concentrations of solute on the two sides of the membrane can reach equilibrium.
Many marine invertebrates, such as jellyfish, have body surfaces that are permeable to water but not to salt. Osmosis can change the pressure of an organism’s body fluids. Fortunately, the ocean is very stable in its salt content with an average salinity of 35 ppt (parts per thousand). What would happen if a jellyfish were placed in a low salinity environment such as an estuary with a salinity of 10 ppt?
a) The jellyfish would lose salt into the estuary.
b) The jellyfish would lose water into the estuary.
c) The jellyfish would gain salt from the estuary.
d) The jellyfish would gain water from the estuary.
