Bio Chapter 6 questions with 100% correct answers 2023

Bio Chapter 6The smallest cell structure that would most likely be visible with a standard (not super- resolution) research-grade light microscope is a _____. A) mitochondrion B) microtubule C) ribosome D) microfilament A In the fractionation of homogenized cells using centrifugation, the primary factor that determines whether a specific cellular component ends up in the supernatant or the pellet is the _____. A) relative solubility of the component B) size and weight of the component C) percentage of carbohydrates in the component D) presence or absence of lipids in the component B What technique would be most appropriate to use to observe the movements of condensed chromosomes during cell division? A) standard light microscopy B) scanning electron microscopy C) transmission electron microscopy A All of the following are part of a prokaryotic cell EXCEPT _____. A) a cell wall B) a plasma membrane C) ribosomes D) an endoplasmic reticulum D Which of the following is a major difference between prokaryotic cells and eukaryotic cells? A) Prokaryotes have cells while eukaryotes do not. B) Eukaryotic cells have more intracellular organelles than prokaryotes. C) Prokaryotes are not able to carry out aerobic respiration, relying instead on anaerobic metabolism. D) Prokaryotes are generally larger than eukaryotes. B Prokaryotes are classified as belonging to two different domains. What are the domains? A) Bacteria and Eukarya B) Bacteria and Archaea C) Archaea and Protista D) Bacteria and Protista B Which of the following is present in a prokaryotic cell? A) mitochondrion B) ribosome C) chloroplast D) ER B Which organelle or structure is absent in plant cells? A) mitochondria B) microtubules C) centrosomes D) peroxisomes C Which of the following macromolecules leaves the nucleus of a eukaryotic cell through pores in the nuclear membrane? A) DNA B) amino acids C) mRNA D) phospholipids C Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules? A) lipids B) glycogen C) proteins D) nucleic acids C A cell with a predominance of free ribosomes is most likely _____. A) primarily producing proteins for secretion B) primarily producing proteins in the cytosol C) constructing an extensive cell wall or extracellular matrix D) enlarging its vacuole B A cell with an extensive area of smooth endoplasmic reticulum is specialized to _____. A) play a role in storage B) synthesize large quantities of lipids C) actively export protein molecules D) import and export protein molecules B The Golgi apparatus has a polarity, or sidedness, to its structure and function. Which of the following statements correctly describes this polarity? A) Transport vesicles fuse with one side of the Golgi and leave from the opposite side. B) Proteins in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other. C) Lipids in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other. D) All of the listed responses correctly describe polarity characteristics of the Golgi function. D