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Bio Final Exam
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Questions in this quiz (39)
1What is a Metabolic pathway?
- AMetabolic energy that is captured more easily if it is released in large amounts rather than in small
- BA series of steps (in cells) in which molecules are broken down OR assembled
- Csubstrates fit onto the enzyme in such a way that they are oriented to react.
2Enzymes catalyze (speed up) reactions in metabolic pathways
- ATrue
- BFalse
3Energy transformations are always 100% efficient.
- ATrue
- BFalse
4Organisms are open systems (constant energy in-flow).
- ATrue
- BFalse
5Shape determines protein function. Enzymes are proteins.
- ATrue
- BFalse
6Substrate molecules bind to Enzymes active sites
- ATrue
- BFalse
7What is chemical energy responsible for?
- AChemical energy determines how active certain chemicals in your bloodstream are
- BProviding living cells with energy from food
- CProviding the energy the body needs to regulate the amount of chemicals in the body.
- DAll of the above
8What is encode?
- Aone must attend
- Bone must review
- Cone must rehearse
9What does it mean to consolidate?
- AOne must review
- BOne must attend
- COne must rehearse
10Which of the following is NOT a component of the Unified Cell Theory?
- AAll living things are composed of one or more cells
- BAll new cells arise from existing cells
- CA network of protein fibers that maintain the shape of the cell
- DThe cell is basic unit of life (the smallest entity that can be “living”)
11Which of the following is NOT a component of Plasma Membrane
- ACholesterol
- BProteins
- CCarbohydrates
- DRibosomes
- EPhospholipids
12Which of the following does not stand true for Membrane Functions and molecules that perform functions:
- ACarbohydrates→ “identification tags” showing type of cell and whether it belongs in organism
- BProteins→ “doors” and “pumps” for transporting molecules in or out of the cell
- CCholesterol→ gives stability to fluid membrane of animal cells and responds to temperature conditions in the cell’s environment
- DRibosomes→ a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cell
- EOsmosis→ diffusion of water molecules across a permeable membrane
- FFlows from high to low→ molecules, from high to low concentration
13Which of the following does NOT require energy?
- ASugars flowing through protein channels from high blood levels to low levels in brain cells
- BMovement of sodium ions from low concentration outside a cell to higher concentration inside a cell
- CMoving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells
14Which of the following DOES require energy?
- AFlow of oxygen-rich red bloods cells, to oxygen-starved muscle cells during exercise
- BDiffusion of water or gases through the membrane.
- CMoving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells
15-In all the cases below, blood sugar (glucose) is flowing into a cell, through a channel protein in the cell membrane.
In which case will the flow of sugar be fastest?- ASugar concentration outside the cell: 10%. Sugar concentration inside the cell: 3%
- BSugar concentration outside the cell: 6%. Sugar concentration inside the cell: 3%
- CSugar concentration outside the cell: 10%. Sugar concentration inside the cell: 9%
16Catabolic pathway: [blank_start]large[blank_end]→[blank_start]small[blank_end] (energy out, exits; exergonic)
- Alarge
- Bsmall
17Anabolic pathway: [blank_start]small[blank_end]→[blank_start]large[blank_end] (energy in, enters; endergonic)
- Asmall
- Blarge
18Thermodynamics: Takes in [blank_start]calories[blank_end]→comes out as heat or makes you move, grow, etc.
- Acalories
19Prokaryote is [blank_start]bacteria[blank_end]
- Abacteria
20Eukaryote is a [blank_start]virus[blank_end]
- Avirus
21Which type of energy is stored within the bonds of all the food molecules we eat?
- AHeat Energy
- BPotential Energy
- CLight Energy
- DKinetic Energy
22What is chemical energy responsible for?
- AProviding the energy the body needs to regulate the amount of chemicals in the body.
- BProviding living cells with energy from food
- CChemical energy determines how active certain chemicals in your bloodstream are
- DAll of the above
23Which type of energy is stored within the bonds of all the food molecules we eat?
- AHeat Energy
- BPotential Energy
- CLight Energy
- DKinetic Energy
24Heat Energy→ [blank_start]unused[blank_end] energy that is created as a byproduct of energy transfers and transformations
- Aunused
25What is energy required for? Choose an answer
- ASleep
- BSynthesis & breakdown of molecules
- CHeavy labor & exercise
- DAll of the above
26Bioenergetics→ concept of [blank_start]energy[blank_end] flow through living systems like cells
- Aenergy
27Passive transport: [blank_start]No Energy[blank_end] needed: When things flow from high to low (water pressure, air pressure, water elevation, electricity)
- ANo Energy
28Active transport: [blank_start]Energy needed[blank_end]: When things are pumped from low to high (concentration, charge, pressure)
- AEnergy needed
29Osmosis: Diffusion of [blank_start]water[blank_end] across permeable membrane
- Awater
30Contractile Vacuoles: Squeeze excess water out of a [blank_start]cell[blank_end] so it does not explode
- Acell
31Diffusion: movement of particles from [blank_start]high[blank_end] to [blank_start]low[blank_end]
- Ahigh
- Blow
322nd Law of Thermodynamics→ Energy transports are never 100% efficient
- ATrue
- BFalse
33Thermodynamics: Takes in calories→comes out as heat or makes you move, grow, etc.
- ATrue
- BFalse
341st Law of Thermodynamics→ states that the total amount of energy in the universe is constant and conserved; i.e. there has always been and will always be exactly the same amount of energy in the universe
- ATrue
- BFalse
35Catalyst- Breaks things up , shoves them together
- ATrue
- BFalse
36Enzyme: A protein with a certain region called active site, will grab a particular molecule(substrait), will break up the molecules so that it could absorb into enzyme
- ATrue
- BFalse
37Enzymes are not catalysts
- ATrue
- BFalse
38Potential Energy→ the energy in the motion of the object
- ATrue
- BFalse
39Kinetic Energy→ the energy in the motion of the object
- ATrue
- BFalse
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- Bio Final Exam
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- ashleyrobinson5155
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