Guías de estudio, Notas de estudios & Resúmenes

Theory of EndosymbiosisEukaryotic cells emerged when mitochondria and chloroplasts, once free-living prokaryotes, took up permanent residence inside other larger cells, about 1.5 billion years ago. Eukaryotic CellA type of cell with a membrane-enclosed nucleus and membraneenclosed organelles. Organisms with eukaryotic cells (protists, plants, fungi, and animals) are called eukaryotes. Prokaryotic CellA type of cell lacking a membrane-enclosed nucleus and membraneenclosed organelles; fo...

Cell Biology Final Dr. Dudley Huntingdon College Questions And Answers

1) Gross anatomy, or macroscopic anatomy, considers: A) internal features of the body. B) features visible with the naked, or unaided, eye. C) a study of a system of the body. D) None of the above Answer: B 2) The human form shown upright, hands at the sides, palms forward, and feet together is in the position. A) anatomical B) physiological C) prone D) supine Answer: A 3) A person lying face down is in the position. A) physiological B) prone C) anatomical D) supine Answer: B ...

MULTIPLE CHOICE 1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA with histones. Which of the following would also be observed by the student? a. A single circular chromosome b. A nucleus c. Free-floating nuclear material d. No organelles ANS: B The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its nucleus; thus, the nucleus should be observed. A single circular chromosome is characteristic of prokaryo...

e upper respiratory tract differs from the lower respiratory tract in what way? A) air is taken in through the lower respiratory tract, and CO2/O2 are exchanged in the upper respiratory tract b) air is taken in through the upper respiratory tract, and CO2/O2 are exchanged in the lower respiratory tract c) CO2 is removed from circulation in the upper respiratory tract d) O2 is removed from circulation in the lower respiratory tract - B. Air is taken in through the upper respiratory tract, ...

694496 Quiz 4 Part 1 of 6 - Chapter 6 24.0 Points Question 1 of 33 3.0 Points What is the phase that not all cells enter, but is a phase where cells are not actively dividing? A. G1 B. S C. G0 D. G2 Feedback: Great job. Question 2 of 33 3.0 Points During which stage in interphase does DNA synthesis occur? A. G2 phase B. Mitosis C. G1 phase D. S phase Feedback: Great job. Question 3 of 33 3.0...

ACELLULAR LIFE – BIOLOGY Exam (2024) || Questions & 100% Correct Answers Who discovered the existence of viruses and when? - ANSWER - Charles Chamberland worked with Louis Pasteur to discover viruses in 1884 How did Charles Chamberland discover viruses? - ANSWER - He found that the causative agents of rabies could pass through the porcelain filter with pores of 100-1000 nm. This filter had been used to remove bacteria previously. What did Iwanosky do in 1892? - ANSWER - He extracted...

Acellular Infectious Agents Exam (2024)- Questions & 100% Correct Answers Acellular Infectious Agents - ANSWER - viruses viroids prions Viruses - ANSWER - most common microbe in the world genetic element with either DNA or RNA, but not both (except for mimivirus and cytomegalovirus) obligate requirement to replicate inside a living cell has an extracellular state (virion) life forms but not cell-based Mimivirus & Cytomegalovirus - ANSWER - large viruses have both DNA & RNA Vas...

Acellular and Cellular Microbes Exam || All Questions & Answers (100% Correct) Acellular microbes - ANSWER - nonliving microbes types of acellular microbes - ANSWER - viruses, viroids, prions cellular microbes - ANSWER - living microbes types of cellular microbes - ANSWER - bacteria, algae, protozoa, fungi virions - ANSWER - complete virus particles electron microscope - ANSWER - viruses are observed using all life forms - ANSWER - viruses are capable of infecting... la...

Biology Exam: Questions with Correct Answers