1653330
Questão 1
Questão
In order to encode a new memory you must
Responda
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review
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attend
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rehearse
Questão 2
Questão
Whether a new memory enters the brain
Responda
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consolidation
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recall
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encoding
Questão 3
Questão
The number and locations of connections in your brain cells, storing a memory
Responda
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consolidation
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recall
-
encoding
Questão 4
Questão
The ability of the brain to quickly find the memory
Responda
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consolidation
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recall
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encoding
Questão 5
Questão
What activity causes new cells to grow in the hippocampus, increases recall for up to 4 hours, and increases levels of serotonin in the brain.
Responda
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listening to music
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studying
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playing video games
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cardio exercise
Questão 6
Questão
Which of the following lead to better consolidation of a new memory?
Responda
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Taking notes during a lecture
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Reviewing material within 24 hours
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Reviewing material in different ways
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Waiting to study right before the test
Questão 7
Questão
Serotonin, dopamine and norepinephrine are all neurotransmitters
Responda
- True
- False
Questão 8
Questão
Which of the following are possessed by all cells? (Choose all that apply)
Responda
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Ribosomes
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Golgi apparatus and other organelles
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Cytoplasm
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Nucleus
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DNA
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Plasma membrane
Questão 9
Questão
Microfilaments and microtublues, that give the cell shape and act as the "highways" in a cell are called _________.
Responda
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organelles
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plasma membrane
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cytoskeleton
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cytoplasm
Questão 10
Questão
A gel like substance filling the area between the plasma membrane and the nucleus is called ____________.
Responda
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organelles
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plasma membrane
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cytoskeleton
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cytoplasm
Questão 11
Questão
The fluid and dynamic boundary made mostly of phospholipids is called ______________.
Responda
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organelles
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plasma membrane
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cytoskeleton
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cytoplasm
Questão 12
Questão
Membrane carbohydrates are molecules that form specialized sites on the cell's surface which allow cells to recognize each other
Responda
- True
- False
Questão 13
Questão
What are the molecules, embedded in the membrane, which regulate the fluidity of the cell membrane and changing temperature?
Responda
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Membrane carbohydrates
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Membrane receptors
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Membrane cholesterol
Questão 14
Questão
What molecules are major components of the plasma membrane? (Choose all that apply)
Responda
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carbohydrates
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phospholipids
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nucleic acids (DNA, RNA)
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proteins
Questão 15
Questão
What flows from high to low? (Choose the ONE best answer)
Responda
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Molecules, from high to lower concentration
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Charged particles, from areas of high charge to areas of lower charge
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Molecules, from areas of high pressure to areas of lower pressure
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all of the above
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none of the above
Questão 16
Questão
Carbon dioxide moving from 10% concentration in a cell's cytosol, to a 7% concentration outside the cell uses active cellular transport
Responda
- True
- False
Questão 17
Questão
Sodium ions moving from 4% outside to 10% inside needs active cellular transport.
Responda
- True
- False
Questão 18
Questão
Sugars moving from 5% concentration in the blood, to 3 % in the cells uses passive cellular transport.
Responda
- True
- False
Questão 19
Questão
Water moving from a cell that is 95% water out to the surrounding solution that is 90% is needs active cellular transport.
Responda
- True
- False
Questão 20
Questão
The movement from high concentration to lower concentration through some portion of the cell membrane is called ___________.
Responda
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facilitated diffusion
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osmosis
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electrochemical gradient
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diffusion
Questão 21
Questão
The diffusion of water across the cell membrane is called __________.
Responda
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facilitated diffusion
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osmosis
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electrochemical gradient
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diffusion
Questão 22
Questão
The difference (in concentration or charge) of any substance, between the inside and the outside of the cell is called ________________.
Responda
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facilitated diffusion
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osmosis
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electrochemical gradient
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diffusion
Questão 23
Questão
The movement of molecules from high to low concentration, through a one-way protein valve (like a turnstile) in the cell membrane is called ________________.
Responda
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facilitated diffusion
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osmosis
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electrochemical gradient
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diffusion
Questão 24
Questão
Oxygen and water molecules moving from high to low concentration will pass between the phospholipids of the membrane
Responda
- True
- False
Questão 25
Questão
Transmembrane protein pumps are used to transport substances (all except gases and water) from LOW to HIGH
Responda
- True
- False
Questão 26
Questão
Sugar and charged calcium ions, moving from high to low concentration will pass using a channel protein membrane "door"
Responda
- True
- False
Questão 27
Questão
Exocytosis and endocytosis are how very large particles get moved out of and in to through the cell membrane.
Responda
- True
- False
Questão 28
Questão
Energy is required:
Responda
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When pumping ions from high concentration to lower concentration
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For facilitated diffusion
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When moving fat or lipids from lower to higher concentrations
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When oxygen moves from oxygen rich to oxygen starved cells
Questão 29
Questão
Which way will the water molecules move if a cell, whose cytosol is 95% water is placed in a test-tube of salt water (10% salt, 90% water)?
Responda
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into the cell
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no net flow in or out
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out of the cell
Questão 30
Questão
Which way will water molecules move if a cell, whose cytosol is 95% water, is placed in a test-tube of 100% water?
Responda
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into the cell
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no net flow in or out
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out of the cell
Questão 31
Questão
In which case will the flow of sugar be FASTEST?
Responda
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Sugar concentration outside of cell: 10% and Sugar concentration inside the cell: 8%
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Sugar concentration outside of cell: 10% and Sugar concentration inside the cell: 2%
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Sugar concentration outside of cell: 6% and Sugar concentration inside the cell: 2%
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