問題一覧
1
Two types of cell cycle
Mitosis Meiosis
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Transport mechanisms
Simple diffusion Facilitated transport Active transport Bulk transport
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Structures and functions of biological molecules
Carbohydrates Proteins Lipids Nucleic acids
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Cell cycles
interphase G1 phase S phase G2 phase Cell divison
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In this cycle cell is most active
interphase
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In this cycle cell increases in size
Gap 1 phase
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In the cycle duplication of genetic materials
S phase
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In this cycle, it synthesize proteins
Gap 2 phase
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It is known as the quiescent stage of the cell cycle
G0 phase
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It has half the number of chromosome
Haploid
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It has two sets of chromosomes
Diploid
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Happens during meiosis tetrads
Homologous
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Bound at center by centromere
Chromatid
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A disc like structure in the plane of the equator of the spin separates the two sets of chromosomes during cytokinesis
Cell plate
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Dividing stage
Cell division
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Body cell
Mitosis
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Sex cell
Meiosis
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Karyokinesis
Nucleus
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Cytokinesis
Cytoplasm
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Cell plate
Plant cell
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Cleavage furrow
animal cell
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Why do cells divide
To multiply For growth To repair To give identical copy
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Cells grow without limit
DNA overload
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Food and oxygen have to cross membrane
Exchange of material
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Thread like Structure
Chromatin
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Condensed structure
chromatid
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Butterfly like structure
Chromosome
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One of a network of filament that extend inward from the pulse of a dividing cell, forming a spindle shaped figure
Spindle fiber
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A protein structure it forms at the centromere
Kinetochore
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Three types of cell divison
Prokaryotes Eukaryotes Sometic cell
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Divide forming new identical cell
Binary fission
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The other word for body cell
sometic cell
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Three main steps of binary fission
DNA replication Chromosome segregation Cytokinesis
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In this checkpoint It decides whether or not cell will divide
G1 checkpoint
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Determines if DNA has been properly replicated
S checkpoint
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Ensures chromosomes are aligned at mitotic plate
Mitotic spindle checkpoint