Microbial Physiology and Metabolism MCQs with Answers

adminJune 13, 2024

0 18 2 minutes read

Welcome to the Microbial Physiology and Metabolism MCQs with Answers. In this post, we have shared Microbial Physiology and Metabolism Online Test for different competitive exams. Find practice Microbial Physiology and Metabolism Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Microbial Physiology and Metabolism.

Microbial physiology and metabolism are essential aspects of microbiology that delve into how microorganisms function and obtain energy from their environments. Understanding these processes is crucial for applications in biotechnology, medicine, and environmental science.

Microbial physiology focuses on the physical and biochemical functions of microbes, examining how they grow, develop, and adapt to various conditions. This includes studying microbial cell structures, enzyme functions, and the mechanisms of nutrient uptake and waste removal. Techniques such as spectroscopy and chromatography help analyze microbial cellular components and their interactions.

Metabolism in microorganisms encompasses the biochemical processes through which they convert nutrients into energy and cellular materials. Key metabolic pathways include glycolysis, the Krebs cycle, and oxidative phosphorylation, which are vital for energy production. Additionally, microbes can perform anaerobic respiration and fermentation, which are critical for their survival in oxygen-limited environments.

Exploring microbial metabolism provides insights into how microbes contribute to biogeochemical cycles, such as carbon and nitrogen cycles. This knowledge is valuable for applications like bioremediation, where microbes are used to clean up environmental contaminants, and in biotechnology, where engineered microbes are utilized for producing biofuels and pharmaceuticals.

Microbial Physiology and Metabolism Online Quiz

By presenting 3 options to choose from, Microbial Physiology and Metabolism Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Microbial Physiology and Metabolism Questions and Answers and click over the correct answer.

Test Name: Microbial Physiology and Metabolism MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Microbial Physiology and Metabolism

Please fill out the form before starting Quiz.

1 / 40

What is the name of the process by which bacteria transfer genetic material via viruses?

Transduction

Transformation

Conjugation

2 / 40

Which process involves the breakdown of glucose to produce two molecules of pyruvate?

Glycolysis

Calvin cycle

Krebs cycle

3 / 40

Which metabolic pathway involves the reduction of nitrate to nitrite in bacteria?

Nitrate reduction

Nitrification

Nitrogen fixation

4 / 40

Which enzyme catalyzes the conversion of sucrose into glucose and fructose in bacteria?

Sucrase

Lipase

Protease

5 / 40

What is the name of the process by which bacteria regulate their internal osmotic pressure by actively pumping out ions?

Feedback inhibition

Homeostasis

Osmoregulation

6 / 40

Which metabolic pathway involves the oxidation of amino acids to produce ammonia in bacteria?

Krebs cycle

Glycolysis

Amino acid metabolism

7 / 40

Which process involves the movement of water across a semi-permeable membrane in response to solute concentration differences?

Diffusion

Active transport

Osmosis

8 / 40

Which enzyme is responsible for the breakdown of starch into maltose and glucose in bacteria?

Amylase

Lipase

Protease

9 / 40

Which metabolic pathway involves the conversion of ammonia into nitrite and nitrate in bacteria?

Denitrification

Nitrogen fixation

Nitrification

10 / 40

Which metabolic pathway converts glucose into pyruvate?

Glycolysis

Krebs cycle

Calvin cycle

11 / 40

What is the primary function of bacteriochlorophyll in anoxygenic photosynthetic bacteria?

Light absorption

ATP synthesis

Carbon fixation

12 / 40

Which process allows bacteria to move toward or away from chemical gradients in their environment?

Phototaxis

Aerotaxis

Chemotaxis

13 / 40

Which enzyme catalyzes the phosphorylation of ADP to ATP during bacterial respiration?

DNA polymerase

ATP synthase

Adenylate cyclase

14 / 40

What type of respiration occurs in the absence of oxygen, producing lactic acid or ethanol as end products?

Anaerobic respiration

Aerobic respiration

Photosynthesis

15 / 40

Which metabolic pathway involves the conversion of acetyl-CoA to fatty acids in bacteria?

Fatty acid synthesis

Krebs cycle

Glycolysis

16 / 40

What is the name of the process by which bacteria regulate their internal pH by pumping out protons?

Acid resistance

Acidogenesis

Chemotaxis

17 / 40

What is the primary energy source used by phototrophic bacteria for photosynthesis?

Sunlight

Organic compounds

Hydrogen sulfide

18 / 40

What type of transport system in bacteria involves the movement of molecules against their concentration gradient using energy from ATP?

Facilitated diffusion

Passive transport

Active transport

19 / 40

Which enzyme catalyzes the conversion of lactose into glucose and galactose in bacteria?

Beta-galactosidase

Urease

Amylase

20 / 40

What is the primary function of bacteriorhodopsin in halophilic archaea?

Light absorption

ATP synthesis

Nitrogen fixation

21 / 40

Which enzyme catalyzes the conversion of nitrogen gas (N2) into ammonia (NH3) in nitrogen-fixing bacteria?

Dehydrogenase

Amylase

Nitrogenase

22 / 40

What is the primary function of the pentose phosphate pathway in bacteria?

Fatty acid synthesis

Nucleotide synthesis

ATP production

23 / 40

Which enzyme is responsible for synthesizing RNA from a DNA template in bacteria?

DNA ligase

RNA polymerase

Reverse transcriptase

24 / 40

Which enzyme is responsible for breaking down hydrogen peroxide into water and oxygen in bacteria?

Catalase

Amylase

Oxidase

25 / 40

Which metabolic pathway involves the oxidation of fatty acids to generate acetyl-CoA molecules?

Beta-oxidation

Glycolysis

Pentose phosphate pathway

26 / 40

Which enzyme catalyzes the conversion of ATP to cyclic AMP (cAMP) in bacteria?

Adenylate cyclase

Peptidase

ATP synthase

27 / 40

Which metabolic pathway involves the oxidation of pyruvate to acetyl-CoA and CO2?

Calvin cycle

Glycolysis

Pyruvate oxidation

28 / 40

Which metabolic pathway involves the conversion of glucose-6-phosphate to ribose-5-phosphate and NADPH?

Krebs cycle

Glycolysis

Pentose phosphate pathway

29 / 40

Which enzyme is involved in the fixation of carbon dioxide during bacterial photosynthesis?

Pyruvate dehydrogenase

Ribulose bisphosphate carboxylase (RuBisCO)

ATP synthase

30 / 40

What is the name of the process by which bacteria exchange genetic material through direct cell-to-cell contact?

Transduction

Conjugation

Transformation

31 / 40

Which molecule serves as the primary electron carrier in bacterial electron transport chains?

NADH

ATP

FADH2

32 / 40

What is the primary function of the tricarboxylic acid (TCA) cycle in bacteria?

ATP production

Generation of reducing equivalents

Synthesis of amino acids

33 / 40

Which molecule is synthesized during the light-dependent reactions of bacterial photosynthesis?

NADPH

ATP

Glucose

34 / 40

Which process involves the synthesis of ATP using energy derived from the flow of protons across a membrane?

Fermentation

Chemiosmosis

Glycolysis

35 / 40

What is the primary function of gas vesicles in aquatic bacteria?

Buoyancy

ATP synthesis

Nitrogen fixation

36 / 40

What is the name of the process by which bacteria synthesize proteins using mRNA as a template?

Translation

Transcription

Replication

37 / 40

What is the name of the process by which bacteria convert nitrate to nitrogen gas?

Nitrification

Denitrification

Nitrogen fixation

38 / 40

What is the primary function of bacterial flagella?

DNA replication

Locomotion

ATP synthesis

39 / 40

Which process involves the conversion of atmospheric nitrogen into ammonia?

Denitrification

Nitrification

Nitrogen fixation

40 / 40

What is the name of the process by which bacteria take up DNA from their environment?

Transformation

Transduction

Conjugation

Download Certificate of Quiz Microbial Physiology and Metabolism

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

If you are interested to enhance your knowledge regarding English, Physics, Chemistry, and Computer please click on the link of each category, you will be redirected to dedicated website for each category.

adminJune 13, 2024

0 18 2 minutes read