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Quiz 1

Cells

QuestionAnswer
A process that produces equal and indentical chromosomes into two newly formeds nuclei-- 96 chromosomes end result. Mitosis
Two cell divisions in gamate formation producing sperm and oocyte--from from diploid to haploid--genetic diversity happens here. Meiosis
Division of the cytoplasm that occurs after the mucleus has divided. Cytokinesis
The first phase of cell division? Prophase
The second stage of cell division? Metaphase
The third stage of cell division? Anaphase
The fourth stage of cell division? Telophase
46 chromosomes in 23 pairs. The mumber of chromosomes in the body cell
The number of chromosomes in the gamates? Twenty three
Net movement of a substance across a membrane aganist a concentration gradient--requires ATP Active transport
Membrance traonsport process that does NOT require ATP, moves solutes down their concentration gradient--e.g. diffusion Passive transport
The unassisted diffusion of solutes through the plasma and other selective membranes. Simple diffusion
Diffusion assisted by carrier molecules that moves solutes down their concentration gradient. Facilitated diffusion
The passage of a solvent and dissolved substances through a membrane/ filter. Filtration
A stack of flattened, smooth membranous sacs; the site of synthesis and packaging of certain molecules in eukaryotic cells. Golgi apparatus
Studded with ribosomes, this is where the building materials of cell membranes are formed. Rough ER
Plays no role in protein synthesis, functions in lipid metabolism and detoxification. Smooth ER
The rod like cytoplasmic organelles responsible for ATP generation. Mitochondria
Organelles that originate from the Golgi apparatus and contain strong digestive enzymes for the breakdown of unwanted substances. Lysosomes
Cytoplasmic organelles at which proteins are synthesized--here we assemble the amino acid chain. Ribosomes
Membranous sacs that contain powerful oxidase enzymes--they function to disarm dangerous free radicals. Peroxisomes
Created by: rhiginbo
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