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SLCC Biol 1090 - UNIT 3 EXAM QUESTIONS WITH VERIF, Exams of Nursing

Valdosta State University (VSU)Nursing

SLCC Biol 1090 - UNIT 3 EXAM QUESTIONS WITH VERIF

Typology: Exams

2024/2025

Available from 07/01/2025

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SLCC Biol 1090 - UNIT 3 EXAM
QUESTIONS WITH VERIFIED ANSWERS
What requires the most ATP to move the molecule across a plasma membrane? -
ANSWERSan ion moving against a concentration gradient
All chemical reactions in the human body that include build up or breakdown of
macromolecules are termed ____________. - ANSWERSmetabolic reactions.
The proteins that catalyze chemical reactions in the body are called -
ANSWERSenzymes.
How does ATP provide energy to a cell? - ANSWERSIt loses a phosphate group,
releasing energy in the process.
What is the source of chemical energy used to power a muscle cell in your arm? -
ANSWERSadenosine triphosphate (ATP)
What is the FIRST step of cellular respiration (specifically aerobic respiration, i.e.
oxygen is present) - ANSWERSGlycolysis in the cytoplasm
What is the SECOND step of cellular respiration (specifically aerobic respiration, i.e.
oxygen is present) - ANSWERSCitric Acid (Krebs) cycle in the mitochondria
What is the THIRD step of cellular respiration (specifically aerobic respiration, i.e.
oxygen is present) - ANSWERSElectron transport chain in the mitochondria
What can happen to the carbon dioxide produced from cellular respiration? -
ANSWERSIt's converted to glucose by plants.
The waste product of fermentation is ____ in animals. It causes muscles to "burn" if
they are not receiving sufficient oxygen to perform aerobic respiration. -
ANSWERSlactic acid
In which organelle is the majority of ATP molecules synthesized? -
ANSWERSmitochondria
Which one of the following is TRUE regarding the flow of energy through an
ecosystem?
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SLCC Biol 1090 - UNIT 3 EXAM

QUESTIONS WITH VERIFIED ANSWERS

What requires the most ATP to move the molecule across a plasma membrane? - ANSWERSan ion moving against a concentration gradient All chemical reactions in the human body that include build up or breakdown of macromolecules are termed ____________. - ANSWERSmetabolic reactions. The proteins that catalyze chemical reactions in the body are called - ANSWERSenzymes. How does ATP provide energy to a cell? - ANSWERSIt loses a phosphate group, releasing energy in the process. What is the source of chemical energy used to power a muscle cell in your arm? - ANSWERSadenosine triphosphate (ATP) What is the FIRST step of cellular respiration (specifically aerobic respiration, i.e. oxygen is present) - ANSWERSGlycolysis in the cytoplasm What is the SECOND step of cellular respiration (specifically aerobic respiration, i.e. oxygen is present) - ANSWERSCitric Acid (Krebs) cycle in the mitochondria What is the THIRD step of cellular respiration (specifically aerobic respiration, i.e. oxygen is present) - ANSWERSElectron transport chain in the mitochondria What can happen to the carbon dioxide produced from cellular respiration? - ANSWERSIt's converted to glucose by plants. The waste product of fermentation is ____ in animals. It causes muscles to "burn" if they are not receiving sufficient oxygen to perform aerobic respiration. - ANSWERSlactic acid In which organelle is the majority of ATP molecules synthesized? - ANSWERSmitochondria Which one of the following is TRUE regarding the flow of energy through an ecosystem?

-Energy is cycled through an ecosystem and rarely lost as heat. -Energy flows from the sun to consumers and then to producers. -As energy flows through an ecosystem, it does not change form. -Energy flows from the sun to producers and then to consumers. - ANSWERSEnergy flows from the sun to producers and then to consumers. Omnivores differ from carnivores in that omnivores derive their energy from - ANSWERSplants and animals. What are considered "producers" - ANSWERSPlants Autotrophs obtain energy from sunlight and store it in their biomass through the process of _____. - ANSWERSphotosynthesis The total amount of stored energy within a given ecosystem is referred to as the - ANSWERSnet primary production When a change in one level of the ecosystem has significant impacts on the other levels and components of the ecosystem, this effect is called a - ANSWERStrophic cascade In land mammals, the pelvic girdle is the point where the leg bones attach to the rest of the skeleton. Whales also have a small pelvic girdle. This would be an example of what type of evidence for evolution? - ANSWERSa vestigial structure The process of ________ has had a major impact on the geographic distribution of species across the planet. - ANSWERScontinental drift Which one of the following is TRUE regarding fossils? Select all correct answers -Because fossils are so old, it is not possible to determine their age. -Even though fossils from more than 200,000 different species have been found, the fossil record remains incomplete. -Because organisms are primarily composed of soft tissue, it is more likely that soft tissue is fossilized than hard tissue. -Fossilization has occurred at multiple times during the prehistory of the earth. -Fossils are more likely discovered under the sea than on land. - ANSWERS-Even though fossils from more than 200,000 different species have been found, the fossil record remains incomplete. -Fossilization has occurred at multiple times during the prehistory of the earth. When two species contain identical or nearly identical proteins, and hence nearly identical DNA, this suggests - ANSWERSthe two species share a common ancestry. All of the following would be considered homologous structures except a(n):