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The Cell Cycle. What is the molecule that carries chemical energy throughout the cell? ATP. What does ATP stand for? Adenisine triphosphate. What is the molecule that results from the loss of a phosphate group in ATP? ADP. What does ADP stand for? Adenisine diphosphate.
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What is the molecule that carries chemical energy throughout the cell? • ATP
What does ATP stand for? • Adenisinetriphosphate
What is the molecule that results from the loss of a phosphate group in ATP? • ADP
What does ADP stand for? • Adenisinediphosphate
Which produces the most ATP when it is broken down? Carbs, lipids, or proteins? • Lipids
What is the name of the process that organisms use to produce energy other than photosynthesis? • Chemosynthesis
Name of the process through which energy from sunlight is captured and used to make sugars that store chemical energy is ______________ • Photosynthesis
A molecule in chloroplasts that absorbs some the energy in visible light is called ______________ • Chlorophyll
What are the main two types of chlorophyll in plants? • Chlorophyll a and chlorophyll b
What are the two main parts of chloroplasts needed for photosynthesis? • Grana and stroma
What makes up the grana? • thylakoids
This type of reaction captures energy from sunlight • Light-dependent
This type of reaction uses energy from light-dependent reactions • Light-independent
The ____ ________ is the regular pattern of growth, DNA duplication, and cell division that occurs in eukaryotic cells. • Cell cycle
What are the four main stages of the cell cycle? • Gap 1, Synthesis, Gap 2, and Mitosis
What happens in a cell during the Gap I stage of the cell cycle? • The cell carries out its normal functions. It increases in size and increases in the number of organelles.
The combining of parts to make a whole is called ___________ • synthesis
What happens during Gap 2 in the cell cycle? • It is a stage of additional growth before actual cell division occurs.
What are the two processes of mitosis? • Mitosis and cytokinesis
In what stage of the cell cycle does the nuclear membrane dissolve? • Mitosis
The process in the cell cycle that divides the cytoplasm. • Cytokinesis
Why do prokaryotic cells divide faster than eukaryotic cells? • Prokaryotic cells do not have the membrane bound organelles that the eukaryotic cells have. Fewer steps in the division process.
Cells that rarely divide are in what stage of the cell cycle? • G₀
What sets the upper limit to cell size? • The ratio of cell surface area to volume.
DNA is a double stranded molecule made of four different subunits called ___________. • nucleotides
One long continuous thread of DNA that consists of numerous genes. • chromosome
The protein that helps to condense DNA. • histone
In the G1 stage, cells increase in _______, _______, and _________. • Size, organelles, number
The ______ at which cells divide is linked to your body’s need for those cells. • rate
If cells were too small, what could they not contain? • Organelles and large molecules
If a cell did not double its size before dividing, what can be said of the daughter cells? • They would be smaller
One half of a duplicated chromosome is called a _______. • chromatid
Two identical chromatids are called ____________. • Sister chromatids
Sister chromatids are held together at the __________. • centromere
The ends of DNA molecules form structures called ________. • telomeres
Repeating nucleotides that do not form genes. They prevent the ends of chromosomes from accidentally attaching to each other. • telomeres
What are the four main phases of mitosis? • Prophase, metaphase, anaphase, and telophase.
Describe what happens during prophase. • The DNA condenses, the nuclear envelope breaks down, centrioles move to opposite ends of the cell and spindle fibers form.
In what stage of mitosis does cytokinesis usually begin? • At the end of anaphase or beginning of telophase
In what stage of mitosis do the chromosomes align themselves along the cell equator? • metaphase
In what stage of mitosis does the nuclear membrane start to reform? • telophase
The stage of the cell cycle after the completion of mitosis where the cytoplasm divides. • cytokinesis
How does cytokinesis differ in plant and animal cells? • In an animal cell the cell membrane forms a trench and pinches closed. In a plant cell the membrane cannot pinch inward because of the cell wall. A cell plate forms instead.
What is the difference between single celled and multicellular organisms and their use of mitosis? • Single celled organisms use mitosis for reproduction and replication while multicellular organisms use mitosis for growth and repair.
In what stage of mitosis do sister chromatids separate? • anaphase
A broad group of proteins that stimulate cell division. • Growth factors
________ store a type of growth factor that helps the body repair wounds. • platelets