Nitrogen fixing bacteria - Study guides, Revision notes & Summaries

Chapter 1 The Microbial World 1.1 Multiple Choice Questions 1) Which of the following statements is FALSE? A) Microbial cells can exist as single cells. B) Microbial cells carry out their life processes of growth independently. C) Microbial cells include both bacteria and viruses. D) Microbial cells are surrounded by a plasma membrane. 2) Which of the following statements is correct? A) Microorganisms are significant contributors to the total biomass on Earth. B) Microorganism...

an organism that can use CO2or CO3- (i.e., inorganic C) as a C source, and obtain energy from the sun (photo) - or from the oxidation of inorganic elements or compounds such as iron, sulfur, hydrogen, ammonium, and nitrites (chemo)? correct answer: Autotroph such as plants, algae, cyanobacteria, etc. an organism that can only get carbon and energy from organic compounds? correct answer: Heterotroph such as bacteria, fungi, protozoa, etc. an organism that grows only in the presence of mol...

AQA A-level BIOLOGY 7402/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022 *jun* IB/M/Jun22/E12 7402/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions i...

OpenStax Microbiology - Test Bank Chapter 04: Prokaryotic Diversity. Chapter 4: Prokaryotic Diversity * = Correct answer Multiple Choice 1. Which is the best example of a population? A. all the microbes living in a particular area B. all the microbes of a particular domain living in a particular area C. all the microbes of a single species living in a particular area* D. all the microbes living within the same host Difficulty: Moderate ASM Standard: 20 2. Microbial ecology is defined...

Which of the following statements about the nitrogen cycle is false? a. Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. b. Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. c. Denitrifying bacteria convert nitrates (NO3-) into nitrogen gas (N2). d. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+). - ANSWER d. Nitrification is the process by which nitrites (NO2-) a...

Ducks Unlimited Final Exam Practice Questions with Complete Solutions In what year was the Clean Water and Air Act created? 1948 What does NOT influence an organism's niche/survival? Commensalism- one benefits and the other derives neither benefit nor harm According to the presentation, ecosystem management was broadened by the establishment of which of the following in 1978? Conservation Biology Which of is known to cause primary succession? Glacier Movement What are positive...

CCA Exam Nutrient Management Section Questions with Correct Answers What process causes a plant to fix nitrogen? - Correct Answer Rhizobium bacteria infects plant root and forms nodule Legumes and Rhizobium bacteria have what kind of relationship? - Correct Answer Symbiotic How much nitrogen does alfalfa fix? - Correct Answer 250 How much nitrogen does sweet clover fix? - Correct Answer 170 How much nitrogen does red clover fix? - Correct Answer 150 How much nitrogen does soybean...

Seed Evolution Steps - ANSWER Homospory Heterospory Megasporangium Surrounded by Sterile Telomes Free Tips Phylum Cycadophyta - ANSWER Earliest Gymnosperms Mesozoic Era (65-230 MYA) 11-12 Genera Mostly tropical and subtropical Resemble palms - unlike palms they have a vascular cambium (stem can increase in width) Often highly toxic to dogs, cats, and livestock Reproductive structures associated with modified leaves - microsporophylls and megasporophylls Loosely or tightly clustered ...

Straighterline Micro 250 Final Prep Exam Question With Solutions Which class of eukaryotic microorganisms can be subdivided into groups such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? A. Helminths B. Algae C. Protozoa D. Fungi - ANS Protozoa Genetic material can be excised from one chromosome and directly integrated into another via A. conjugation. B. transformation. C. transduction. D. transposons. - ANS transposons. Which immune cell secr...

What process causes a plant to fix nitrogen? - ANS Rhizobium bacteria infects plant root and forms nodule Legumes and Rhizobium bacteria have what kind of relationship? - ANS Symbiotic How much nitrogen does alfalfa fix? - ANS 250 How much nitrogen does sweet clover fix? - ANS 170 How much nitrogen does red clover fix? - ANS 150 How much nitrogen does soybean fix? - ANS 100 How much nitrogen does hairy vetch fix? - ANS 70 How much nitrogen do field peas ...