Description : Non-cyclic photophosphorylation is also known as a. Oxygenic photosynthesis b. Photosynthesis c. Anoxygenic photosynthesis d. Photophosphorylation
Last Answer : Ans: B
Description : The process through which excess of light energy is dissipated in photosynthesis is known as (1) Quenching (2) Scavenging (3) Photolysis (4) Photophosphorylation
Last Answer : Quenching
Description : During cyclic phosphorylation NADP is formed or not. a. No NADP formation b. No NADP utilization c. NADP is converted into NADPH d. All are correct
Last Answer : Ans: A
Description : The splitting up of water molecules in plant cells in the presence of sunlight is called (A)Photophosphorylation (B) Photosynthesis (C) Photolysis (D) Phosphorylation
Last Answer : (C) Photolysis
Description : The first step for initiation of photosynthesis will be (a) photolysis of water (b) excitement of chlorophyll molecules due to absorption of light (c) ATP formation (d) glucose formation.
Last Answer : (b) excitement of chlorophyll molecules due to absorption of light
Description : The number of ATP molecules formed during cyclic phosphorylation are a. One b. Two c. Four d. Six
Last Answer : Ans: D
Description : Which one of the following tissues can metabolize glucose, fatty acids and ketone bodies for ATP production? a. Liver b. Muscle c. Brain d. R.B.C
Description : Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is ... and (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)
Last Answer : (a) (ii) and (iv)
Description : For the synthesis of amino acids cysteine, cystine and methionine the element required is a. Sulphur b. Oxygen c. Nitrogen d. None of these
Description : In the synthesis of cell components the major element required is a. Nitrogen b. Sulphur c. Carbon d. Oxygen
Last Answer : Ans: C
Description : Potential energy is produced during a.Photorespiration b.Respiration c.Photosynthesis d.ATP synthesis
Last Answer : c.Photosynthesis
Description : Manganese is required in (a) plant cell wall formation (b) photolysis of water during photosynthesis (c) chlorophyll synthesis (d) nucleic acid synthesis.
Last Answer : d) nucleic acid synthesis.
Description : The process through which excess of light energy is dissipated in photosynthesis is known as (1) Quenching (2) Scavenging (3) Photolysis (4) Photophosphatylation
Last Answer : (1) Quenching Explanation: Quenching is a process in which absorbed light energy is dissipated as heat and does not take part in photochemistry. The phenomenon involves quenching of chlorophyll a (Chia) fluorescence, which is induced under steady-state illumination.
Description : Which one of the following concerns photophosphorylation? (a) ADP + AMP ATP Light energy (b) ADP + Inorganic PO4 ATP Light energy (c) ADP + Inorganic PO4 ATP (d) AMP + Inorganic PO4 ATP
Last Answer : ) AMP + Inorganic PO4 ATP
Description : If the source of energy for bacteria is from chemical compounds they are said to be a. Phototrophs b. Autotrophs c. Chemotrophs d. Chemolithotroph
Description : The tendency of a plant to grow toward light is called: a) photosynthesis b) photoinduction c) phototropism (pron: fo-tot-row-piz-em) d) photolysis (pron: fo-tol-eh-sis)
Last Answer : ANSWER: C -- PHOTOTROPISM
Description : The process of formation of mesozygote is called a. Meromixis b. Exozygote c. Mitosis d. Meiosis
Description : Bacteria which need oxygen for growth are called a. Thermophilic bacteria b. Microaerophilic bacteria c. Facultative anaerobic bacteria d. Mycobacteria
Description : Cells are active and synthesizing new protoplasm. This stage of growth is called a. Lag phase b. Stationary phase c. Log phase d. All of these
Description : Growth in a closed system, affected by nutrient limitation and waste product accumulation is called a. Batch culturing b. Ascus c. Fruiting body d. Sporangiosphore
Description : Bacteria are more sensitive to antibiotics at which phase of growth curve? a. Decline phase b. Stationary phase c. Lag phase d. Log phase
Description : Growth curve does not include following phases of bacteria – a. Decline phase b. Stationary phase c. Lag phase d. Synchronous growth
Description : The suitable temperature to transport viral culture is – a. 30oC b. 5oC c. 25oC d. 45oC e. None of these
Description : Mycotoxins are formed during the end of a. Lag phase b. Log phase c. Death phase d. Stationary phase
Description : Tubercular bacilli grow best in a. Absence of O2 b. Presence of CO2 c. Presence of O2 d. None of these
Description : Which of the following organisms requires tryptophan for growth? a. H.influenza b. Vibrio c. Gonococci d. S.typhi
Description : Artificial transformation in laboratory is carried out by treating the cells with a. MgCl2 b. Cacl2 c. NaCl d. HCl
Description : Cyclic phosphorylation is generally present in a. Cyanobacteria b. Algae c. Bacteria d. Plants
Description : The compound that is added to the medium to absorb oxygen for the creation of anaerobic conditions a. Sodium Thioglycollate b. Nitrous acid c. Citrate d. None of these
Description : The organisms which can grow best in the presence of a low concentration of oxygen a. Aerophilic b. Microaerophilic c. Aerobic d. Anaerobic
Description : The organisms which can grow both in presence and absence of oxygen a. Aerobes b. Anaerobes c. Faculative anaerobes d. Strict aerobes
Description : Optimum growth temperature is greater that 45oC is a. Mesophiles b. Thermophiles c. Psychrophiles d. None of these
Description : Minimum growth temperature is a. The growth of organisms at lowest temperature b. The lowest temperature at which the microorganisms grow c. The maximum temperature at which the growth is stable d. None of these
Description : The reproduction rate is equal to death rate in which stage a. Decline phase b. Stationary phase c. Lag phase d. Log phase
Description : In the sigmoid curve (or) growth curve of bacteria how many stages are there a. 3 b. 4 c. 2 d. 5
Description : The no. of generations per hour in a bacteria is a. Growth rate b. Generation time c. Sigmoid curve d. None of these
Description : Log-phase is also known as a. Death phase b. Exponential phase c. Lag-phase d. None
Description : The most active stage in the sigmoid curve of bacteria in which maximum growth is attained a. Lag phase b. Stationary phase c. Decline phase d. Log phase
Description : Physiologically the cells are active and are synthesizing new protoplasm in which stage of the growth in bacteria a. Log phase b. Lag phase c. Stationary phase d. None of these
Description : In bacteria, the increase in population is in the manner a. Geometric progression b. Multiplication c. Doubling d. None of these
Description : The generation time is a. The time required for the cell to divide b. The total division of the cell during its life time c. The total no.of cells formed d. None of these
Description : How much time a bacterium take for the complete duplication? a. 30 min. b. 10 min. c. 20 min. d. 25 min.
Description : The most common mode of cell division in bacteria is a. Binary fission b. Transverse binary fission c. Longitudinal binary fission d. None of these
Description : The orderly increase in the quantity of all the cellular components is known as a. Reproduction b. Growth c. Binary fission d. None of these
Description : Radical shifts can be prevented by adding a. Acids b. Alkali c. Buffer d. None of these
Description : The bacteria which are able to grow at 0°C but which grow at 20°C to 30°C, are known as a. Psychrophiles b. Facultative psychrophiles c. Average psychrophiles d. Mesophiles
Description : Vitamin K is necessary for the species a. Lactobacillus spp. b. Bacillus anthracis c. Bacteroides melaninogenicus d. All of these
Description : The vitamin required for Lactobacillus species is a. Riboflavin b. Niacin c. Pyridoxine d. Folic acid
Description : Vitamin function as a. Co-enzymes b. Co-melecules c. Building blocks of cell d. None of these
Description : Most bacteria do not require the ion a. Mg2+ b. Ca2+ c. Na+ d. Fe+2