4090697
Beschreibung
Quiz von ashleyrobinson5155, aktualisiert more than 1 year ago
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Erstellt von ashleyrobinson5155
vor etwa 9 Jahre
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Frage 1
Frage
What is a Metabolic pathway?
Antworten
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Metabolic energy that is captured more easily if it is released in large amounts rather than in small
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A series of steps (in cells) in which molecules are broken down OR assembled
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substrates fit onto the enzyme in such a way that they are oriented to react.
Frage 2
Frage
Enzymes catalyze (speed up) reactions in metabolic pathways
Antworten
- True
- False
Frage 3
Frage
Energy transformations are always 100% efficient.
Antworten
- True
- False
Frage 4
Frage
Organisms are open systems (constant energy in-flow).
Antworten
- True
- False
Frage 5
Frage
Shape determines protein function. Enzymes are proteins.
Antworten
- True
- False
Frage 6
Frage
Substrate molecules bind to Enzymes active sites
Antworten
- True
- False
Frage 7
Frage
What is chemical energy responsible for?
Antworten
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Chemical energy determines how active certain chemicals in your bloodstream are
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Providing living cells with energy from food
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Providing the energy the body needs to regulate the amount of chemicals in the body.
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All of the above
Frage 8
Frage
What is encode?
Antworten
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one must attend
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one must review
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one must rehearse
Frage 9
Frage
What does it mean to consolidate?
Antworten
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One must review
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One must attend
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One must rehearse
Frage 10
Frage
Which of the following is NOT a component of the Unified Cell Theory?
Antworten
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All living things are composed of one or more cells
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All new cells arise from existing cells
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A network of protein fibers that maintain the shape of the cell
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The cell is basic unit of life (the smallest entity that can be “living”)
Frage 11
Frage
Which of the following is NOT a component of Plasma Membrane
Antworten
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Cholesterol
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Proteins
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Carbohydrates
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Ribosomes
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Phospholipids
Frage 12
Frage
Which of the following does not stand true for Membrane Functions and molecules that perform functions:
Antworten
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Carbohydrates→ “identification tags” showing type of cell and whether it belongs in organism
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Proteins→ “doors” and “pumps” for transporting molecules in or out of the cell
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Cholesterol→ gives stability to fluid membrane of animal cells and responds to temperature conditions in the cell’s environment
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Ribosomes→ a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cell
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Osmosis→ diffusion of water molecules across a permeable membrane
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Flows from high to low→ molecules, from high to low concentration
Frage 13
Frage
Which of the following does NOT require energy?
Antworten
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Sugars flowing through protein channels from high blood levels to low levels in brain cells
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Movement of sodium ions from low concentration outside a cell to higher concentration inside a cell
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Moving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells
Frage 14
Frage
Which of the following DOES require energy?
Antworten
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Flow of oxygen-rich red bloods cells, to oxygen-starved muscle cells during exercise
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Diffusion of water or gases through the membrane.
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Moving fat or lipid molecules from low concentration in the blood to high concentration in fat storage cells
Frage 15
Frage
-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?
Antworten
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Sugar concentration outside the cell: 10%. Sugar concentration inside the cell: 3%
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Sugar concentration outside the cell: 6%. Sugar concentration inside the cell: 3%
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Sugar concentration outside the cell: 10%. Sugar concentration inside the cell: 9%
Frage 16
Frage
Catabolic pathway: [blank_start]large[blank_end]→[blank_start]small[blank_end] (energy out, exits; exergonic)
Antworten
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large
-
small
Frage 17
Frage
Anabolic pathway: [blank_start]small[blank_end]→[blank_start]large[blank_end] (energy in, enters; endergonic)
Antworten
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small
-
large
Frage 18
Frage
Thermodynamics: Takes in [blank_start]calories[blank_end]→comes out as heat or makes you move, grow, etc.
Antworten
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calories
Frage 19
Frage
Prokaryote is [blank_start]bacteria[blank_end]
Antworten
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bacteria
Frage 20
Frage
Eukaryote is a [blank_start]virus[blank_end]
Antworten
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virus
Frage 21
Frage
Which type of energy is stored within the bonds of all the food molecules we eat?
Antworten
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Heat Energy
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Potential Energy
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Light Energy
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Kinetic Energy
Frage 22
Frage
What is chemical energy responsible for?
Antworten
-
Providing the energy the body needs to regulate the amount of chemicals in the body.
-
Providing living cells with energy from food
-
Chemical energy determines how active certain chemicals in your bloodstream are
-
All of the above
Frage 23
Frage
Which type of energy is stored within the bonds of all the food molecules we eat?
Antworten
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Heat Energy
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Potential Energy
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Light Energy
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Kinetic Energy
Frage 24
Frage
Heat Energy→ [blank_start]unused[blank_end] energy that is created as a byproduct of energy transfers and transformations
Antworten
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unused
Frage 25
Frage
What is energy required for? Choose an answer
Antworten
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Sleep
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Synthesis & breakdown of molecules
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Heavy labor & exercise
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All of the above
Frage 26
Frage
Bioenergetics→ concept of [blank_start]energy[blank_end] flow through living systems like cells
Antworten
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energy
Frage 27
Frage
Passive transport: [blank_start]No Energy[blank_end] needed: When things flow from high to low (water pressure, air pressure, water elevation, electricity)
Antworten
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No Energy
Frage 28
Frage
Active transport: [blank_start]Energy needed[blank_end]: When things are pumped from low to high (concentration, charge, pressure)
Antworten
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Energy needed
Frage 29
Frage
Osmosis: Diffusion of [blank_start]water[blank_end] across permeable membrane
Antworten
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water
Frage 30
Frage
Contractile Vacuoles: Squeeze excess water out of a [blank_start]cell[blank_end] so it does not explode
Antworten
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cell
Frage 31
Frage
Diffusion: movement of particles from [blank_start]high[blank_end] to [blank_start]low[blank_end]
Antworten
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high
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low
Frage 32
Frage
2nd Law of Thermodynamics→ Energy transports are never 100% efficient
Antworten
- True
- False
Frage 33
Frage
Thermodynamics: Takes in calories→comes out as heat or makes you move, grow, etc.
Antworten
- True
- False
Frage 34
Frage
1st 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
Antworten
- True
- False
Frage 35
Frage
Catalyst- Breaks things up , shoves them together
Antworten
- True
- False
Frage 36
Frage
Enzyme: 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
Antworten
- True
- False
Frage 37
Frage
Enzymes are not catalysts
Antworten
- True
- False
Frage 38
Frage
Potential Energy→ the energy in the motion of the object
Antworten
- True
- False
Frage 39
Frage
Kinetic Energy→ the energy in the motion of the object
Antworten
- True
- False
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