Description : Which of the following does not produce oxygen as a product of photosynthesis? A- A.Oak trees B.Purple sulfur bacteria C.Cyanobacteria D.Phytoplankton
Last Answer : Purple sulfur bacteria
Description : The photosynthetic pigments used by the green sulfur bacteria and some archaeal species are a. Chlorophyll b. Bacteriochlorophyll c. Cytochrome d. Sulfate
Last Answer : b. Bacteriochlorophyll
Description : Bacteria, as a group, are responsible for A.nitrogen oxidation B.sulfur oxidation C.nitrogen fixation D.all of these
Last Answer : D.all of these
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : Gram-negative bacteria would stain_________ with the Gram stain and have _______in the wall. a. orange-red; Teichoic acid b. orange-red; lipopolysaccharide c. purple; peptidoglycan d. purple; Teichoic acid
Last Answer : c. purple; peptidoglycan
Description : The _______are members of the_____________ a. Green Algae; Protozoa b. Radiolarians; Apicomplexans c. Dinoflagellates; Phytoplankton d. Radiolarians; Fungus-Like Protists
Last Answer : c. Dinoflagellates; Phytoplankton
Description : What is the primary source of food for marine life? A.Phytoplankton B.Zooplankton C.Sea weed D.Grass
Last Answer : A.Phytoplankton
Description : Chemoautotrophic bacteria obtain the energy they need from a. The Reactions Of Photosynthesis. b. Sunlight. c. Carbon Dioxide In The Atmosphere. d. Inorganic Chemicals.
Last Answer : b. Sunlight.
Description : Genetic and biochemical similarities between contemporary cyanobacteria and eukaryoticchloroplasts are accepted to mean that A- .eukaryotes evolved from bacteria B- eukaryotes evolved from archaea C- . ... evolved in eukaryotes D- .cyanobacteria arose from chloroplasts which escaped from plant cells
Last Answer : eukaryotes evolved from archaea
Description : The use of oxygen gas (02) in an exergonic pathway generating ATP is called a. Anaerobic Respiration. b. Photosynthesis. c. Aerobic Respiration. d. Fermentation.
Last Answer : c. Aerobic Respiration.
Description : Do all bacteria require oxygen for growth?
Last Answer : Many bacteria are aerobic; that is, they require oxygen to grow and perform the biochemical reactions of their metabolism. There are, however, a large number of bacterial species that are ... obligate anaerobes, while others are facultative anaerobes, meaning that they live with or without oxygen.
Description : A key energy compound in bacterial photosynthesis by cyanobacteria is ______ and a major end-product is ______. a. GTP; protein b. citrate; lactose c. glucose; chlorophyll d. ATP; glucose
Last Answer : c. glucose; chlorophyll
Description : Pick up the correct food chain. (a) Grass → Chameleon → Insect → Bird (b) Grass → Fox → Rabbit → Bird (c) Phytoplankton → Zooplankton → Fish (d) Fallen leaves → Bacteria → Insect larvae
Last Answer : (c) Phytoplankton → Zooplankton → Fish
Description : Cancer cells interfere with cell functions in all the following ways except: a. they rob cells of their nutrients and induce cell starvation. b. they stimulate the immune system to produce destructive ... reduce the oxygen supply to cells. d. they overwhelm cells through sheer force of numbers.
Last Answer : b. they stimulate the immune system to produce destructive interferons.
Description : Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.
Last Answer : a. Take Up DNA Fragments From The Environment.
Description : Oxygen is not produced during photosynthesis by (a) Green sulphur bacteria (b) Nostoc (c) Cycas (d) Chara.
Last Answer : (a) Green sulphur bacteria
Description : Oxygen is not produced during photosynthesis by (1) Green sulphur bacteria (2) Nostoc (3) Cycas (4) Chara
Last Answer : (1) Green sulphur bacteria
Description : Which of the following gases do plants and trees give out during photosynthesis? A. Hydrogen B. Nitrogen C. Oxygen (Answer) D. Carbon dioxide
Last Answer : C. Oxygen (Answer)
Description : Glucose is to photosynthesis as pyruvate is to _____. a. Oxidative Phosphorylation b. Glycolysis c. Fermentation d. Citric Acid Cycle
Last Answer : a. Oxidative Phosphorylation
Description : Which one of the following is correct sequence for the flow of electrons in the energy-fixing reactions of photosynthesis? a. Water-photosystem 1-photosystem II-NADPH b. Photosystem I-NADPH-water- ... --- photosystem II------ photosystem I-NADPH d. NADPH-photosystem Il-photosystem I-water
Last Answer : d. NADPH—photosystem Il—photosystem I—water
Description : Which of the following(s) is/are the products of the light reactions of photosynthesis? A.ATP only B.NADPH only C.ATP and O2 only D.ATP, NADPH, and O2
Last Answer : D.ATP, NADPH, and O2
Description : All of the following are features of prokaryotes except A- nitrogen fixation B- photosynthesis C- sexual reproductionD- .locomotion
Last Answer : sexual reproduction
Description : _______ was first used to catalog organisms into one of three domains. a. Photosynthesis b. Ribosomal RNA genes c. Nuclear DNA genes d. Mitochondrial DNA genes
Last Answer : b. Ribosomal RNA genes
Description : Where do White Oak trees get their name from?
Last Answer : The white oak is named for its whitish bark and grey twigs
Description : What is the most effective way to plant oak trees (and other questions?)
Last Answer : Uncover some ground and push them in several inches, then they will take care of themselves in the spring. put them someplace so you can monitor them in case you want to move them.
Description : What causes Valley Oak trees to make noise?
Last Answer : All trees creak, that’s one of the reasons it’s so scary to go walking in a forest at night. When wood gets warm the liquid in the cells expand, and when they cool, they contract. This can cause sounds that can actually sound like talking.
Description : How do I kill Spanish moss from Oak trees?
Last Answer : Need Answer
Description : My oak trees are dying. The leaves have a yellow fuzzy growth on them what is this
Last Answer : It sounds like a fungus.
Description : Why are my oak trees dying from the top down?
Description : why does oak trees suddenly die?
Description : why are the oak trees turning brown so early in this year
Description : One of my oak trees the leaves are wilting.
Description : worms are eating the leaves on my crab apple trees and oak. How do I get rid of them.
Last Answer : Now that it is spring time spray with Dormant oil.
Description : How do I grow scrub oak trees?
Last Answer : JUst plant the acorns in the soil and water. The plant will do the rest.
Description : Silver oak and banana trees are grown on coffee plantations. -SST 10th
Last Answer : Silver oak and Orange trees protect the coffee plantations from the direct sunrays. It also provides extra income to the farmers.
Description : What does oak trees and birch trees have in common?
Last Answer : They are both trees. They are both deciduous and there the communality ends.
Description : Why do oak trees grow in winter?
Last Answer : In temperate climates (Britain's weather), the growing season of oak trees is from the warming up of Spring to the cooling down of Autumn. Having lost their leaves in Autumn, the oak trees are ... will only wake when the sap begins to rise again with the warming and lengthening hours of daylight.
Description : If a disease came into the forest and killed all the oak trees where the squirrels?
Last Answer : frg
Description : Why do pine trees survive dry periods better than oak trees?
Last Answer : Feel Free to Answer
Description : Which one of the following is the characteristic vegetation of regions between the snow line and about 3000 meters above mean sea level of the Himalayan region? [CDS 2000] (a) Thick forests of birch, fir, ... maple trees (c) A few dwarf shrubs (d) Forests of khair, sandalwood, palas and other trees
Last Answer : Ans: (b)
Description : Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and ... at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2
Last Answer : (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2
Last Answer : Sulfur reacts with water to produce sulfuric acid
Description : (3) Oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of oxides of Sulfur and Nitrogen (Sulfur Dioxide and Nitrogen Oxide), which react with the water molecules in the ... The emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) result from fossil fuel combustion.
Last Answer : (3) live wire and the neutral wire Explanation: Three wires enter most homes from the power pole-two "hot" wires and a third "neutral" wire. Each hot wire provides 120- volt current for ... the main switch is put off because the electric circuit (the path where the electricity travels) gets opened.
Description : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides, which react with the water molecules in the atmosphere to produce acids.
Last Answer : Neuron is - (1) Fundamental unit of energy (2) Particle released in radioactive emission (3) Antiparbcle of neutron (4) Fundamental unit of nervous system
Description : Are bacteria able to move, and, if so, how?
Last Answer : Bacteria (and other prokaryotes) have the ability to move by means of flagella. Flagella are composed of the globular protein flagellin. They are extremely long and thin and cannot be seen by the light ... pair of rings, while Gram- negative bacteria have both inner and outer pairs of rings).
Description : Are chromosomes the only parts of bacteria that can be transformed?
Last Answer : Bacteria possess extrachromosomal loops of DNA called plasmids. Plasmids are small, self-replicating loops of DNA with about 10 to 50 genes. They are not essential for the survival of the ... process called curing, which can occur spontaneously or can be induced by certain environmental factors.
Description : For retting of jute the fermenting microbe used is (a) methanophilic bacteria (b) butyric acid bacteria (c) Helicobacter pylori (d) Streptococcus lactin.
Last Answer : b) butyric acid bacteria
Description : _____ bacteria live as individuals and do not live in biofilms. a. Planktonic b. Anaerobic c. Aerobic d. Facultative anaerobic
Last Answer : a. Planktonic