EVERY TOPIC Flashcards
An increase or decrease in pH or temperature can cause an enzyme to ____________.
Denature
Which type of organic compound gives the most calories of energy per gram
lipid
An enzyme speeds up a chemical reaction by lowering the amount of _____________energy to start the reaction
activation
Enzymes are always changed in the reaction and cannot be used again
false
Enzymes are specific and can only bond with or act on one particular substrate
true
Match the example to its organic compound - glucose, fructose, strach
carbohydrate
Match the example to its organic compound - nucleotide
nucleic acid
Match the example to its organic compound - triglyceride
lipid
Match the example to its organic compound - meat, fish, eggs
protein
Match the example to its organic compound - Adenine
nucleic acid
Match the example to its organic compound - polysaccharide
carbohydrates
Match the example to its organic compound - enzymes
protein
Match the example to its organic compound - phospholipid
lipid
Match the description to the organic compound - protein
used as building blocks for the body, NOT energy
Match the description to the organic compound - lipid
insulation
Match the description to the organic compound - nucleic acids
used to identify the characteristics of an organism
Match the description to the organic compound - carbohydrates
quick main source of energy
Match the description to its organic compound - short term energy
carbohydrate
Match the description to its organic compound - store genetic material
nucleic acid
Match the description to its organic compound - builds muscle and helps with movement
protein
Match the description to its organic compound - long term energy
lipid
Match the example to its organic compound - hormones like insulin
protein
Match the example to its organic compound - waxes, oils, butter
lipids
Match the example to its organic compound - pasta, bread, rice
carbohydrates
Match the example to its organic compound - DNA, RNA
nucleic acids
An organic compound will always have what 3 elements?
carbon, hydrogen, oxygen
substrate
the reactant that the enzyme binds or attaches to
activation energy
the amount of energy needed to start a reaction
catalyst
a molecule that speeds up a reaction
active site
the place where the enzyme and substrate join
Match the organic compound with its correct monomer - nucleic acid
Nucleotide
Match the organic compound with its correct monomer - lipid
Fatty Acid
Match the organic compound with its correct monomer - carbohydrate
Monosaccharide
Match the organic compound with its correct monomer - protein
Amino Acid
The model of a substrate to an enzyme is called a lock and key model
true
Match the description to the organic compound - blueprint of an organism
nucleic acid
Match the description to the organic compound - ends in -ose
carbohydrate
Match the description to the organic compound - speeds up chemical reactions
protein
Match the description to the organic compound - builds cell membranes and provides waterproof coverings
lipid
Which of the following are parts of mitosis?
anaphase
metaphase
telophase
prophase
Which of the following is an argument that supports the use of embryonic stem cells?
they can be used to cure diseases such as Parkinson’s and Alzheimers
Daughter cells that are formed by mitosis have _______________chromosomes as the parent cell
the same number of
Apoptosis is
the destruction of a cell that has/contains an error programmed cell death
a process in which a cell should destroy itself if an error is found and cannot be fixed
Place the phases of mitosis in order, starting with what happens immediately after interphase
prophase
metaphase
anaphase
telophase
A malignant tumor can be described as
a mass of abnormal cells that can spread from where it originated
Organisms use the process of mitosis for all of the following reasons EXCEPT
differentiation
A benign tumor can be described as
a mass of abnormal cells that does not move beyond its original location
Stem cells can become any type of cell in the body?
True
Cancer cells are your own cells dividing uncontrollably
true
Why are checkpoints important throughout the cell cycle?
they make sure that the cell has no mistakes as it divides, so that any daughter cells formed are functional
What is the stage of the cell cycle when the cytoplasm of a cell actually splits and two daughter cells are formed
cytokinesis
During which phase of the cell cycle does DNA replicate itself?
Interphase - Synthesis
Put the phases of the cell cycle in the correct order, starting with the phase that happens immediately after a new cell is formed.
G1
S
G2
M
Mitosis produces daughter cells that are _______ to their parents, which means that they have the exact same ________. These daughter cells are __________, or body cells. Unlike mitosis, meiosis forms daughter cells that have __________ the DNA of their parent cell. These cells made during meiosis are called _________.
identical
DNA
somatic
half
gametes
Which of the following is not true about stem cells?
only embryonic stem cells can differentiate
Differentiation can be described as
the process by which stem cells develop a specific purpose and become a specialized cell
Match the phase of mitosis with the appropriate description - Anaphase
Sister chromatids are pulled apart from each other and migrate to opposite poles / ends of the cell
Match the phase of mitosis with the appropriate description - Telophase
Chromatids are at opposite ends of the cell and a new nucleus begins to form around each set of chromatids
Match the phase of mitosis with the appropriate description - Metaphase
Sister chromatids are pulled to the equator and line up in the middle of the cell
Match the phase of mitosis with the appropriate description - Prophase
Sister chromatids first become visible and the nuclear membrane begins to break down
Cancer is the result of
cells that divide uncontrollably
Bacteria is an example of what type(s) of cell(s)?
prokaryotic
In order for a virus to reproduce it must invade a cell that becomes the ________ for the virus
host cell
A virus is a type of cell and is considered living.
false
Animal cells, plant cells, and fungal cells are examples of what type of cell?
eukaryotic
A cell that does not have a nucleus and usually forms unicellular organisms represents what type of cell?
prokaryotic
DNA is found in a double helix in what type of cell?
eukaryotic
What organelles are found in both prokaryotic and eukaryotic cells?
cell membrane
cytoplasm
ribosome
genetic material
More complex, larger in size, and usually forms multicellular organisms would best describe what type of cell?
eukaryotic
Select all that apply. Which organelles are found in prokaryotic cells?
nucleoid
cell membrane
genetic material
cytoplasm
ribosome
Bacteria cell
Prokaryotic cell that is usually round and simple
Animal cell
Eukaryotic cell that is round and contains lysosomes and centrioles
Plant cell
Eukaryotic cell that is boxy and contains chloroplast and cell wall
Fungal cell
Eukaryotic cell that contains a cell wall and multiple nuclei
Which of the following are found in eukaryotic cells only?
vesicle
cytoskeleton
golgi body
vacuoles
mitochondria
endoplasmic reticulum
nucleus
Vacuole
Stores substances inside the cell (water, nutrients)
Ribosome
Makes proteins
Vesicle
The pouch that moves materials around the cell (sac)
Cell Wall
Provides shape and support for plant cells
Cell Membrane
Controls what can enter or leave the cell
Nucleus
Control center of the cell that directs all of the cells activities
Cytoplasm
Fluid, jelly like substance that holds the organelles
Mitochondria
Breaks down glucose to give the cell energy (ATP)
Chloroplast
A structure in plants that captures energy from the sun and converts it into glucose
Golgi Body
Packages and ships the proteins to be exported from the cell
Microtubules
Forms the cytoskeleton of the cell and enables organelles to move in the cell
Endoplasmic Reticulum
The highway used to transport materials throughout the cell
The “active” part of active transport means that it uses____________.
Energy in the form of ATP
Use the following information to answer the question. A cell contains 10% salt and a solution contains 30% salt. Which description correctly describes osmosis in this situation.
there will be a net flow of water leaving the cells
The cell membrane lets some molecules in and keeps others out. Which term does NOT accurately describe this property?
hemipermeable
Hypotonic
A cell is in a solution that has less solutes (salts and sugars) than the cell has on the inside
water will enter the cell causing it to swell
Isotonic
A cell is in a solution that has the same amount of solutes (salts and sugars) as the inside of the cell