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