Mmsc 490 - Study guides, Class notes & Summaries

MMSC 490 Exam 3

MMSC 490 exam 3

MMSC 490 Final Test Questions with Correct Answers Which energy-producing process is thought to have come first during cellular evolution? - Answer-Glycolysis The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution. Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA, have their own ribosomes, reproduce by simpl...

MMSC 490 Exam 1 with 100% Correct Answers cell wall - Answer ️️ --organelle of bacteria and plants -rigid layer composed of carbohydrates and proteins -porous and easily penetrated plasma membrane - Answer ️️ --organelle of bacteria, plant and animal cells -bilayer of phospholipids and associated proteins -provides separation from inside of cell and external environment nucleoid - Answer ️️ --organelle of bacteria -contains 1 circular molecule of DNA -not surrounded by membr...

MMSC 490- Compilation of Exam 3 Quizzes-Solved Aminoacyl tRNA synthetases are enzymes that connect amino acids while they are held in place on ribosomes by transfer RNAs. synthesize transfer RNAs. attach amino acids to specific transfer RNAs. attach the terminal CCA sequence to transfer RNAs. - Answer ️️ -attach amino acids to specific transfer RNAs. E. coli contains about .................... different tRNAs that code for .................... different amino acids. 62; 20 40; 20 ...

MMSC 490 2024 Exam Questions with Correct Answers The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. RNA Molecules Ribosomes Oxidative phosphorylation Nucleus - Answer-Nucleus Cytoplasmic organelles are... Present in prokaryotic cells an absent in eukaryotic cells Absent in prokaryotic cells and present in eukaryotic cells Absent in both prokaryotes and eukaryotes Present in both prokaryotic and eukaryotic cell...

MMSC 490 Exam 3 Questions with Correct Answers Aminoacyl tRNA synthetases are enzymes that attach the terminal CCA sequence to transfer RNAs. attach amino acids to specific transfer RNAs. connect amino acids while they are held in place on ribosomes by transfer RNAs. synthesize transfer RNAs. - Answer-attach amino acids to specific transfer RNAs. E. coli contains about .................... different tRNAs that code for .................... different amino acids. 62; 40 40; 20 50; 2...

MMSC 490 Final Exam Questions with Correct Answers Humans possess about .............. different cell types. 100 200 500 1,000 - Answer-200 In adult organisms, cell death must be balanced by cell growth. differentiation. renewal. migration. - Answer-renewal The distinct series of changes that characterizes programmed cell death is called necrosis. apoptosis. sepsis. execution. - Answer-apoptosis Cells that die as the result of acute injury undergo lysis. sepsis. apoptosis. ...

MMSC 490 Exam 1 PQ Questions and Answers The light microscope was used to observe the cellular structure of cork by ____, who named the chambers "cells". - Answer ️️ -Hooke Which fish is proving to be a useful model organism for the study of vertebrate development? - Answer ️️ -Zebrafish Arabidopsis thaliana is a model organism for studying the molecular biology of - Answer ️️ - Plants The original cell was thought to have arisen from the enclosure of self-replicating ____ b...

MMSC 490 Exam 2