Cell Cycle Basics Practice Flashcards
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A set of vocabulary flashcards based on the fundamental components and processes of the cell cycle.
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33 Terms
Cytokinesis
The stage of the cell cycle where the cytoplasm divides to form two separate daughter cells.
Sister chromatids
Identical copies of a single chromosome that are joined together before cell division.
Centromere
The specific region of a chromosome where sister chromatids are held together.
Spindle fibers
Protein structures that form during cell division to help separate sister chromatids.
Main job of mitosis
Growth and repair
What type of cells are made by mitosis
Body cells
What happen during prophase of mitosis
Chromosomes become visible
What is the end result of mitosis
Two identical cells
In animal cells, cytokinesis happens when…
It has a indentation of cytoplasm
What happens to the chromosome number during meiosis
It’s cut in half
Which process makes cells that are all different from each other
Meiosis
Hat are homologous chromosomes
Chromosomes that carry the same kind of genes
In Prophase 1, chromosomes can swap pieces of DNA . What’s the process called
Crossing over
When do homologous chromosomes separate in meiosis
Anaphase 1
What are staramostly made of
Hot gas and plasma
Why do stars shine
Nuclear fusion makes energy
Where does most of a star’s energy come from
It’s core
Which 2 elements make up most of a star
Hydrogen and helium
What is a protostar
A young star forming
What is the main factor that affects a star’s life cycle
It’s mass
What sequence shows a basic life cycle for a low-mass star
Nebula➡ protostar ➡ main sequence star
What does a constellation mean
A pattern of stars seen from Earth
What is a galaxy
A large system of stars, gas, and dust
Why might two stars look equally bright from earth even if they are not the same size
Their distance may be different
What star is usually hotter
Blue star
What happens to a stars fuel when it is very massive
It is used up faster
What is the sun
A star
What can happen to a high-mass star at the end of its life
It becomes a supernova
What is a white dwarf
A small, dense star remnant
which star type is generally the largest
Red supergiant
What luminosity mean
How much light a star gives off
Why do scientists use telescopes and models to study stars
Stars are way too far to study directly