Description : Which of the following has proved helpful in preserving pollen as fossils ? (1) Pollenkitt (2) Cellulosic intine (3) Oil content (4) Sporopollenin
Last Answer : (4) Sporopollenin
Description : 3. Which of the following has proved helpful in preserving pollen as fossils a)pollen kit b)oil content c)sporopollenin d)cellulosic intine
Last Answer : 3.c c)sporopollenin
Description : Which one of the following statements is wrong? (a) When pollen is shed at two-celled stage, double fertilisation does not take place. (b) Vegetative cell is larger than generative cell. (c) Pollen grains in some plants remain viable for months. (d) Intine is made up of cellulose and pectin.
Last Answer : (a) When pollen is shed at two-celled stage, double fertilisation does not take place.
Description : Which one of the following statements is correct? (a) Endothecium produces the microspores. (b) Tapetum nourishes the developing pollen. (c) Hard outer layer of pollen is called intine. (d) Sporogenous tissue is haploid
Last Answer : (b) Tapetum nourishes the developing pollen.
Description : 12. ------------ is the composition of the intine of the pollen grain (a) cellulose and kitin (b) kitin and polysaccharide (c) cellulose and pectin (d) polysaccharide and glycoprotein
Last Answer : (c) cellulose and pectin
Description : Which one of the following statements is wrong?a)Pollen grains in some plants remain viable for monthsb)Intine is made up of cellulose and pectinc)When pollen is shed at two-celled state, double fertilization does not take placed)Vegetative cell is larger than generative cell
Last Answer : c)When pollen is shed at two-celled state, double fertilization does not take place
Description : Which one of the following statements is not true? (a) Pollen grains of many species cause severe allergies. (b) Stored pollen in liquid nitrogen can be used in the crop breeding programmes. (c) Tapetum helps in the dehiscence of anther. (d) Exine of pollen grains is made up of sporopollenin.
Last Answer : (c) Tapetum helps in the dehiscence of anther.
Description : Exine layer of pollen grain is made up of : a) sporopollenin b)Pectin c) cellulose d)chitin
Last Answer : Ans: a)sporopollenin
Description : Why it is sometimes necessary to preheat the base material before welding? a) To remove oil and grease b) To remove moisture from inside the material c) To prevent the possible risk of cracking d) Not required if using cellulosic electrodes as these will provide enough heat
Last Answer : c) To prevent the possible risk of cracking
Description : Pollenkitt is secreted by
Last Answer : Pollenkitt is secreted by – Cells of tapetum
Description : In angiosperm, all the four microspores of tetrad are covered by a layer which is formed by (a) pectocellulose (b) callose (c) cellulose (d) sporopollenin
Last Answer : (a) pectocellulose
Description : An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (a) cuticle (b) sporopollenin (c) lignin (d) cellulose.
Last Answer : (b) sporopollenin
Description : Which of the following statements is correct? (a) Sporopollenin can be degraded by enzymes. (b) Sporopollenin is made up of inorganic materials. (c) Sporopollenin can withstand high temperatures ... strong acids and alkalis. (d) Sporopollenin can withstand high temperatures but not strong acids.
Last Answer : (c) Sporopollenin can withstand high temperatures as well as strong acids and alkalis
Description : 55. An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (1) Cellulose (2) Cuticle (3) Sporopollenin (4) Lignin
Last Answer : Lignin
Description : A cellulosic wall is found in the cells of - (1) animals (2) bacteria (3) fungi (4) plants
Last Answer : (4) plants Explanation: Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. It is a complex carbohydrate, that is composed of glucose units.
Description : Rayon is a __________ fibre. (A) Cellulosic (B) Polyamide (C) Polyester (D) Natural
Last Answer : (A) Cellulosic
Description : Cytoskeleton is made up of (a) callose deposits (b) cellulosic microfibrils (c) proteinaceous filaments (d) calcium carbonate granules.
Last Answer : (c) proteinaceous filaments
Description : Which one of the following is wrong for fungi? (a) They are eukaryotic. (b) All fungi possess a purely cellulosic cell wall. (c) They are heterotrophic. (d) They are both unicellular and multicellular.
Last Answer : (b) All fungi possess a purely cellulosic cell wall.
Description : Litharge is (A) Lead oxide (B) Zinc oxide (C) Zinc sulphide (D) Cellulosic photographic material
Last Answer : (A) Lead oxide
Description : What would be the most likely SAW flux type for welding medium carbon steel which requires impact testing: a) Cellulosic b) Rutile c) Fused d) Agglomerated
Last Answer : d) Agglomerated
Description : A cellulosic wall is found in the cells of (1) animals (2) bacteria (3) fungi (4) plants
Last Answer : plants
Description : How do fossils turn into oil?
Last Answer : Feel Free to Answer
Description : Which of the following practices are not suggested for producing relevant content? a. For creating notable content recurrently, create hero "content for tent-pole events". b. For creating ... specifics. d. For creating relevant content consistently, create help" content to answer queries."
Last Answer : c. For creating more content than your competitors, create lots of articles that are short, unsubstantial, or otherwise lacking in helpful specifics.
Description : To create a Google-friendly site, which of the following is a step towards giving visitors the information they're looking for? A. Create a helpful, information-rich site. B. Think about the words ... will attract many visitors and entice webmasters to link to your site. D. All of the above
Last Answer : D. All of the above
Description : Which of the following is NOT a best practice for producing content? A. To produce remarkable content frequently, create hero "content for tent-pole events." B. To produce valuable content ... helpful specifics. D. To produce relevant content consistently, create help" content to answer queries."
Last Answer : C. To produce more content that your competitors, create lots of articles that are short, unsubstantial, or otherwise lacking in helpful specifics
Description : Preserving Books: What cover should I use for this? How do I prevent warping?
Last Answer : answer:Ideally the materials need to be kept protected from three things: 1. Sunlight 2. Humidity (and much higher humidity or moistness, resulting in mildew or mold) 3. Oxygen in the air ... . The warping is definitely humidity, though. That's a much more realistic concern than temperature alone.
Description : How do you go about preserving a dream car even before day one?
Last Answer : The only thing I can think of is to keep it in a garage with a cover over it and keep the garage temperature controlled as well.
Description : Is nature worth preserving?
Last Answer : Plastic Animals ? please ! Im Totally With You , It’s a Losing Proposition , If i Were You i Wouldn’t Be a part Of It
Description : What are the ideal conditions for preserving food?
Last Answer : Flash freezing in liquid nitrogen and then hyper-low-temp storage would probably keep it edible indefinitely.
Description : ‘Rainwater Harvesting is considered as a low cost and eco-friendly technique of preserving water resources’. Justify. -Geography
Last Answer : Rainwater Harvesting is considered as a low cost and eco-friendly technique of preserving water resources.', Justify. Rain water harvesting is a method to capture and store rainwater for ... erosion, and flooding and arrests salt water intrusion in coastal areas if used to recharge aquifers
Description : Explain the pro-active approach adopted by the National Thermal Power Corporation (NTPC) for preserving the natural environment and resources. -SST 10th
Last Answer : Pro-active approach by NTPC: 1. Optimum utilization of equipment by using latest technologies and upgrading the existing ones. 2. Waste generation has been minimized by maximum utilization of ash ... pollution has been reduced by measures like ash pond management, ash water recycling, and liquid
Last Answer : The pro-active approach adopted by the National Thermal Power Corporation(NTPC) for preserving the natural environment: (i) Optimum utilisation of equipment adopting latest techniques and upgrading ... (v) Ecological monitoring, reviews and online database management for all its power stations.
Description : Which one is the common anticoagulant used for preserving blood?
Last Answer : Which one is the common anticoagulant used for preserving blood? A. NaCl B. Sodium oxalate C. KCl D. Thromboplastin
Description : What is the Egyptian process of preserving a dead body called?
Last Answer : Need answer
Description : How did the freezing method of preserving foods begin?
Last Answer : How did the freezing method of preserving foods begin
Description : The Farakka Project la mainly aimed towards (a) irrigating more land in West Bengal (b) utilizing maximum of Ganga water (c) preserving the port of Kolkata (d) production of electricity
Last Answer : Ans: (c)
Description : The primary function of the feathers in birds is to A. Provide insulation for preserving body heat B. Provide striking surface to the wings for flying C. Make the body surface waterproof D. Impart colouration for species as well as sex recognition
Last Answer : ANSWER: B
Description : The primary function of an office is– (A) Making, using and preserving records (B) Remunerating personnel (C) Carrying out management policies (D) Safeguarding organization’s assets
Last Answer : Answer: Making, using and preserving records
Description : Moisture absorbed in the windings or condensed on the surface of electrical machinery insulation ________. A. is good for long term preserving since most insulation is organic and contains some amount B. ... D. reduces the amount of current supplied or drawn by the machine so horsepower is limited
Last Answer : Answer: B
Description : Which chemical is used for preserving fruit juices?
Last Answer : Sodium benzoate
Description : Which chemical is used for preserving fruit juice in India?
Last Answer : Sodium Benzoate
Description : Petrol is not selected for preserving sodium or potassium metal. Why?
Last Answer : Petrol evaporates easily and is costly hence kerosene is used.
Description : The primary function of the feathers in birds is to -----? A. Provide insulation for preserving body heat B. Provide striking surface to the wings for flying (Answer) C. Make the body surface waterproof D. impart coloration for species as well as sex recognition
Last Answer : B. Provide striking surface to the wings for flying (Answer)
Description : What are different methods of preserving food?
Last Answer : Pasteurization: - i) This method is used to preserve milk and is discovered by Louis Pasteur. ii) In this process milk is heated to 71 C and then cooled rapidly. iii) The bacteria ... ii) Then food is sealed in metallic container. iii) Hence food is safe from contamination.
Description : An inference algorithm that derives only entailed sentences is called sound or truth-preserving. a) True b) False
Last Answer : a) True
Description : Which of the following is an advantage of food processing? A. Availability of seasonal food throughout the year B. Removal of toxins and preserving food for longer C. Adds extra nutrients to some food items D. All of the above
Description : The modern refrigerator is set at _____ to provide a suitable environment for preserving food without destroying appearance, or taste. a. 30°F b. 35°F c. 40°F d. 45°F e. 50°F
Last Answer : c. 40°F
Description : When is ionizing radiation used to sterilize? a. To Sterilize Vitamins b. For Preserving Foods c. To Sterilize Hormones d. To Sterilize Antibiotics e. All The Above
Last Answer : e. All The Above
Description : An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as (A) Contour line (B) Horizontal equivalent (C) Contour interval (D) Contour gradient
Last Answer : (D) Contour gradient
Description : An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called (A) Contour line (B) Contour gradient (C) Level line (D) Line of gentle scope
Last Answer : (B) Contour gradient