The bacterial generation time refers to a.   The time required for a population of organisms to double in number through one round of binary fission   b.   The time when both the total cell number and cell mass double up   c. Both A and B d. Neither A nor B

Q: Which of the following statements is ?correct about prokaryotes إختر أحد الخيارات: the cell walls of…

A: Prokaryotes are minuscule single-celled organisms that lack a nucleus, a membrane, and other…

Q: 2. which of these is the characteristic of prokaryotic cells? a. both of these b. do not posses true…

A: Phase contrast microscopy: The optical microscopy technique phase-contrast microscopy (PCM)…

Q: You add a drug to your bacterial culture that disrupts the proton motive force (movement of protons…

A: The proton motive force (PMF) is a mechanism used by cells, particularly prokaryotic and plant…

Q: anaerobic organism

A: Anaerobic organisms: The anaerobic organisms or anaerobes are the organisms which does not require…

Q: A prokaryote that gains organic molecules from other livingorganisms is aa. photoautotroph.b.…

A: The organisms that utilise sunlight, carbon dioxide and water to produce its own food are called…

Q: bacteria death can result from damage to which of the following structures? a. proteins b.…

A: Bacteria are single cell microscopic organisms which are considered as prokaryotic microorganisms.…

Q: The ________ is involved in the movement of a prokaryotic cell.a. fimbriaeb. capsulec. nucleoidd.…

A: Cell is the smallest structural and, functional unit of life. All the biochemical reactions take…

Q: 4. A chemical sterilization procedure is found to destroy the indicator organism B. şubtilus with…

A: Sterilization is the process which involves destruction of all microorganisms (bacteria, fungi,…

Q: A bacterium is_______ (choose all that apply). a. an organism c. an animal b. single-celled d. a…

A: There are many different types of organisms found on the planet. So it is important to classify…

Q: 30. Which of the following trees of life (showing Archaea (A), Bacteria (B), and Eukarya (E)) best…

A: Answer--- correct option is (a) Tree of life is also known as phylogenetic tree.

Q: ______ cells lack a membrane-bound nucleus and do not have DNA. a Eukaryotic b Binary c Plasmid d…

A: Every cell in our body contains organelles. An organelle is a specialised subcellular structure.…

Q: Analogies Photosythetic bacteria: sulfur compoinds:: A. Chemoautotropic bacteria: sulfur compound…

A: Analogy is a process of passing on the meaning or information from one object to another. It uses…

Q: eria and Oxygen 1 Obligate anaerobes Cannot live in the presence of Ex. Archaebacteria o Lives in…

A: Aerobes are the organisms that live in the presence of Oxygen and anaerobes are the organism that…

Q: D. nitrogen fixation E. photosynthesis 18. What term best describes the following reaction carried…

A: NO3 is nitrate and NO2 is nitrite. So in the reaction mentioned above nitrate is being converted…

Q: which of the following are prokaryotic? a. Bacteria  b. protist c. Archea  d. both a and c e. all of…

A: A prokaryote are unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any…

Q: A typical prokaryotic cell __________________compared to a eukaryotic cell.a. is smaller in size by…

A: A cell is the basic structural and functional unit of life. They are called the building blocks of…

Q: Disinfectants, be they heat or radiation or chemicals, usually kill a constant proportion of the…

A: Given Values:  t = 30 miutes D = 10 minutes No = 105 CFU/ml Nt = ?

Q: Bacteria produce by sexual reproduction. O True O False

A: Reproduction is a kind of process which produces the progenies in the next generation from parent.

Q: Bacteria that serve as decomposers are______ . a. photoautotrophs c. chemoautotrophs b.…

A: Living organisms are classified into three major domains of life based on the characteristics of the…

Q: You are working with a yeast that can undergo fermentation or respiration. You take equal aliquots…

A: Introduction - Fermentation in yeasts produces ethanol and carbon dioxide, both of which can be used…

Q: All of the following are characteristics of prokaryotic cells except   A. Don't have organized…

A: Bacteria are prokaryotic organisms. They lack membrane bound organelles.   **Only first three…

Q: Methods of Bioremediation does not include Select one: a. Bioaugmentation b. Phytoremediation c.…

A: Bioremediation: Bioremediation is a field of biotechnology that involves the removal of…

Q: You discover a new bacterium. Its cell envelope shows high concentrations of phosphatidylethanolmine…

A: Bacterias are mainly classified in to two types in microbiology. They are:Gram-positive and…

Q: You discover a new microorganism which you initially assume is a Bacterium, however after observing…

A: Archaea are a group of the micro-organisms that are similar to bacteria but evolutionarily it is…

Q: hen you try to count yeast cells in the elect one: Oa. 10x O b. 4x Oc. 40x O d. 400x

A: Since you have asked multiple questions , we will solve the first question for you. If you want any…

Q: Contrast the theory of biogenesis (cell theory) witht that of spontaneous  generation and what…

A: Cell  Cell is a basic structural and functional entity of all living organism. A single cell…

Q: Spread plating_is used to sterilize the spreader or Lrod: a. Ethanol bHeating over flame C.…

A: Spread plate technique  is used to isolate bacteria . It is a microbiological technique .

Q: 3. Can a population of microbes contain members that are resistant to an antibiotic even if they've…

A: For studying the various different types of bacterial cells, first, we have to culture them in labs.…

Q: Which of the following involves metabolic cooperation among ?prokaryotic cells إختر أحد الخيارات…

A: Metabolic cooperation amongst prokaryotic cells helps them to utilize the available resources in the…

Q: Which of the following species is prokaryotic? A. Mus muculus B. Arabidopsis thaliana C.…

A: Prokaryotes - these are the organisms whose cells lack a nucleus and other organelles. Prokaryotes…

Q: Bacterial growth occurs sexually through binary fission true or false

A: Bacteria are prokaryotes characterised by the absence of nucleus and membrane bound organelles.

Q: In the TCA cycle, the enzyme aconitase is responsible for a. assembly b. polymerization c.…

A: In aerobic condition, pyruvate in the presence of pyruvate dehydrogenase complex produces Acetyl…

Q: Five separate SIM tubes were inoculated with organisms A through E. Which tubes produce hydrogen…

A: The most convenient medium for hydrogen gas testing is SIM medium ( sulfide, indole and motility).…

Q: You tested that a pineapple pie has 4 million of bacteria V in it. The baker did not wash his hands…

A: Given information The initial concentration of bacteria V= 800 cells After 5 hours the…

Q: hich of the following factors is a unique event in the evolution of the niche of microbes? A.…

A: Most natural habitats have a surprisingly diverse collection of microbial species. In these…

Q: Food microbiology involves the following, except _______________ . a. fermentation b. western…

A: Introduction :- The study of microorganisms that colonise, alter, and process food as well as those…

Q: If an antibiotic was able to destroy the pili of bacteria, what effect would you expect it would…

A: Pili are thread like structures found on the surface of bacteria. Their primary function is to…

Q: Both archaea and eukaryotes have______ . a. peptidoglycan c. a nucleus b. histone proteins d. a…

A: Introduction :- Eukaryotes are organisms with a nucleus and other membrane-bound organelles in their…

Q: A sweetener used in sugarless gums and candies. Explain your answer in 1-3 sentences. a. ribitol b.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Choose the combination of answers that most accurately completes the statement. For mutations to…

A: Mutation can be outlined as the change within a DNA sequence and it results from the copying…

Q: Bacteria having fimbriae has the advantage over one that lacks fimbriae because: a. It can be…

A: Cell surface appendages are tubular or fibrous protein structures found on the surface of bacterial…

Q: 33) Which of the following is a disadvantage of being multicellular?     Greater energy needs…

A: Compared to their unicellular predecessors, multicellular organisms encounter a multitude of…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.