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Cell Bio Exam 2 Flashcards | StudBud
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Cell Bio Exam 2
Cell Bio Exam 2
54 terms
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Ch. 3 (Cell Structure) & Ch. 4 (Energy & Metabolism)
Flashcards
54 cards
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Practice quiz
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Questions
54
Answers
1
This active transport protein moves two substances across a membrane in opposite directions
Transporter
Allotransporter
Syntransporter
Cotransporter
2
The amount of turgor that prevents osmosis into cytoplasm or hypertonic fluids is......
osmotic pressure
strength
pressure
turgor
3
What is the cell's energy currency?
ATP
ACP
ADP
AMP
4
Mechanism by which a change results from some activity decreases or stops the activity.
Loss of reactants
Chemical reaction
Cellular stop mechanism
Feedback inhibition
5
This organelle is the power-house of mammalian cells.
Nucleus
Mitochondria
Lysosome
Centriole
6
This organelle is responsible for sorting and shipping products out of the cell.
Golgi body
Peroxisome
Ribosome
Nucleus
7
A molecule that remains at the end of a reaction is referred to as the __________.
reactant
ingredients
product
mess
8
This transport requires energy input & transport proteins to move things against their gradient
metaphysical
active
astral
passive
9
This is a molecule that enters a reaction.
Reactants
Customers
Product
Reaction
10
This organelle is responsible for photosynthesis.
Mitochondria
Cell membrane
Chloroplast
Nucleus
11
Activation energy is the.....
energy required to stop a reaction.
maximum amount of energy required to start a reaction.
minimum amount of energy required to start a reaction.
energy required to start a reaction.
12
Eukaryotic DNA is found within the ___________.
mitochondria
nucleoid
cytoplasm
nucleus
13
The difference in concentration between two adjoining solutions is known as the.....
solution gradient
solubility gradient
concentration gradient
dissolution gradient
14
When membranes allow some substances, but not others to cross, this is called......
selective permeability
unselective permeability
diffusion
picking and choosing
15
This organelle is responsible for protein synthesis.
Nucleus
Ribosome
Mitochondria
Golgi body
16
The cell's outermost membrane is called _____________________.
Plasma membrane
Cell barrier
Wall membrane
Cell wall
17
Solution A (blue) is _________ relative to the inside of the cell (gold).
Hypertonic
Isotonic
Hypotonic
18
This organelle is responsible for intracellular digestion.
Lysosome
Peroxisome
Vacuole
Vesicle
19
Prokaryotic DNA is found within the ___________.
nuclear envelope
nucleoid
cytoplasm
nucleus
20
All of the following are part of the cytoskeleton except __________.
microvilli
microfilaments
intermediate filaments
microtubules
21
This is the smallest unit of life.
Compound
Cell
Molecule
Atom
22
Solution C (blue) is _________ relative to the inside of the cell (gold).
Hypertonic
Isotonic
Hypotonic
23
The process of transforming ADP to ATP, a phosphate group transfer, is known as......
phosphate transfer
phosphatase
phosphorylation
photosynthesis
24
This is one of the men who developed the cell theory.
van Leeuwenhoek
Hooke
Schwann
Schleiden
25
This organelle is studded with ribosomes.
Rough ER
Smooth ER
Nucleus
Golgi body
26
The number of molecules or ions per unit volume of a fluid is referred to as......
solubility
diffusion
concentration
solution
27
This organelle is responsible for ATP production.
Lysosome
Vacuole
Mitochondria
Vesicle
28
________ is the net movement of molecules or ions from high to low concentrations.
Turgor
Osmosis
Diffusion
Osmotic pressure
29
Which of the following in not a part of the endomembrane system?
Smooth ER
Golgi body
Mitochondria
Rough ER
30
This organelle houses the cell's genetic material in eukaryotic organisms.
Nucleus
Nuclear envelope
Nucleolus
Nucleoid
31
He coined the term "cell"
van Leeuwenhoek
Schleiden
Schwann
Hooke
32
T/F: Plant cells have chloroplasts instead of mitochondria.
False
True
33
_______ is the net movement of water molecules across a selectively permeable membrane.
Diffusion
Osmotic pressure
Osmosis
Turgor
34
This the enzyme site where substrates bind.
Front door
Reactive site
Active site
Allosteric site
35
The type of transport requires no energy input & relies on a concentration gradient.
metaphysical
physical
passive
active
36
This is the site of an enzyme where regulatory proteins bind.
Lock
Active site
Allosteric site
Reactive site
37
This term's literal definition means "cell-eating"
Pinocytosis
Endocytosis
Exocytosis
Phagocytosis
38
The term refers to structures within a cell that carry out specialized metabolic functions.
Organette
Organ
Organelle
Organza
39
He invented the first "microscope"
van Leeuwenhoek
Schleiden
Schwann
Hooke
40
A cell expels a vesicle's contents to the extracellular fluid by merging with plasma membrane.
Pinocytosis
Phagocytosis
Endocytosis
Exocytosis
41
Solution B (blue) is _________ relative to the inside of the cell (gold).
Isotonic
hypertonic
hypotonic
42
T/F: Coenzymes are an organic cofactor that can be changed by reactions.
False
True
43
T/F: Enzymes are proteins or RNA that speed up reactions and are changed by it.
False
True
44
The capacity to do work is referred to as ___________.
Sleepiness
Grumpiness
Energy
Laziness
45
These are specialized junctions found in plant cells.
Desmosomes
Tight junctions
Plasmodesmata
Hemidesmosomes
46
This is an extendable lobe of membrane-enclosed cytoplasm for movement or eating prey.
Cilia
Flagella
Pseudopod
Cell membrane
47
This is a long, slender cellular structure used for mobility.
Flagella
Cilia
Microvilli
Microtubule
48
Which of the following is not a cell junction type found in animal cells?
Plasmodesmata
Tight junctions
Gap junctions
Desmosomes
49
When a cell takes in extracellular fluid through in-ballooning of the cell membrane.
Pinocytosis
Exocytosis
Endocytosis
Phagocytosis
50
The pressure that a fluid exerts on a wall or membrane is known as .........
pressure
rigor
osmotic pressure
turgor
51
Cofactors are metal ions or coenzymes that associate with enzymes & are functionally required.
False
True
52
The cell membrane is composed of a ________ _________.
carbohydrate bilayer
lipid bilayer
amino acid bilayer
protein bilayer
53
This is an enzyme that is reacted upon by an enzyme.
Substrate
Cofactor
Product
Coenzyme
54
This surface specialization helps some cells cling, move, or transfer plasmids.
Pilus
Microvilli
Cilia
Flagella