"Biology Mock EOC review"
the diagrams show molecules that a mitochondrion uses and produces during a cellular process. cellular process in the mitochondrion pyruvate 02 --> Mitochondria --> H2O CO2? which other molecule is a product of this process.
ATP
A type of cellular transport is shown. Which description best identifies this type of cellular transport?
Active transport, because energy is being used to move molecules against the concentration gradient.
In a study of physical endurance, researchers observed significant increases in the heart rates and breathing rates of participants immediately after they engaged in strenuous exercise. Which statement best explains the increase in the heart rate and the breathing rate during exercise?
Body cells require increased oxygen as energy is expended.
A student produces a labeled drawing of a virus for a presentation. The student states that the capsid has a function similar to the nuclear membrane found in animal cells.
Both protect genetic info for the structures.
CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique, scientists can add, remove, or modify sections of the DNA sequence.
By activating or deactivating specific genes.
Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original that was removed because of the new scientific knowledge?
Cells form through spontaneous generation.
Which of these components are found in the cells of all living organisms?
Cytosine and Guanine
A segment of a DNA strand is shown: 3' AGGTCAGGT 5' Which of these is the correct complementary DNA strand for the segment shown?
5' TCCAGTCCA 3'
A table of 4 types of carbohydrates is drawn. Which list correctly matches the functions to the types of carbohydrates?
Energy: glycogen, and starch Structure: Cellulose and chitin
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these 2 statements?
Enzymes function best at a specific temperature.
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 increased size, strength, and speed in horses?
Evolution by natural selection
Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?
The mRNA strand is complementary to the DNA template strand, however, uracil instead of thymine is paired with adenine.
Which 2 systems most directly interact in the fuzzy millipede defense against ants?
Muscular and integumentary
Which of the following statements is true about natural systems?
Producers are at the bottom level of both the energy pyramid and the biomass pyramid.
There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures are found in both prokaryotic and eukaryotic cells?
Ribosome
The scientific theory of evolution is supported by different types of evidence. The diagrams below show skeletons of 2 different animal species. How does comparing the skeletons of these animals provide support for the scientific theory of evolution?
Shows possible common ancestry between organisms.
Conservation biologists studying cheetah populations have determined that the lack of genetic diversity among the cheetahs is due to genetic drift.
The cheetah population becomes less likely to survive an outbreak of a disease or an environmental change , increasing the chance of species extinction.
Which component is missing from Carmen's experiment?
The control group
Enzymes are proteins that have 3-D shape that is a specific to a particular substrate. Environmental conditions can change the shape of the protein. What is the most likely result if the shape of the enzyme changes?
The enzyme will no longer be able to catalyze the reaction with the substrate.
Chart of some plant systems and functions is shown. Which system interactions are dependent on the plant's ability to respond to the direction of light?
option 4
A_________makes its own energy and begins the food chain
producer
During secondary succession, which of these best describes why decomposing pioneer plants give way to larger, more complex plant species, such as hardwood trees.
Increased amounts of soil from decomposing pioneer species allow plants with more extensive root systems to become established.
Male guppies found in areas without predators are more colorful than the ones found in locations with large predator populations. A population of adult guppies origination from an area with a large number of predators is transferred to a nearby area with few predators.
There will be an increase in the number of colorful guppies.
