Free Plant Nutrition and Transport MCQs with Answers
162 Plant Nutrition and Transport MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
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162 questions · page 5 of 9
- A. 6 - 200 g per acre
- B. 4-40 g per acre
- C. 6 - 200 kg per acre
- D. 4 - 40 kg per acre
Explanation: Explanation:Micronutrients are required in quantity ranging from 6-200 grams per acre.
Correct answer: 6 - 200 g per acre- A. Mango
- B. Tobacco
- C. Wheat
- D. Rice
Explanation: Explanation:Potassium fertilizers are especially useful for tobacco, coffee, potato, and corn.This option is not correct.
Correct answer: Tobacco- A. Leaves
- B. Fruits
- C. Root hairs
- D. Branches
Explanation: A is incorrect as the growth of the leaves is dependent on nitrogen.B is incorrect as the development of fruit depends on phosphorous.C is…
Correct answer: Root hairs- A. Chlorophyll
- B. Photosystem
- C. Photon
- D. Electron
Explanation: Photosystem is the correct option because it refers to the functional unit in the chloroplasts of plants and cyanobacteria where the…
Correct answer: Photosystem- A. 680 nm
- B. 780 nm
- C. 700 nm
- D. 580 nm
Explanation: There are two photosystems: PSI and PSII. These are named in order of their discovery.
Correct answer: 700 nm- A. ATP and CO2
- B. ATP
- C. Only CO2
- D. Only Oxygen
Explanation: Linear electron flow (LEF) in photosynthesis produces both ATP and NADPH, and the cyclic electron flow (CEF) around photosystem I has been…
Correct answer: ATP- A. Unstable 6-carbon compound
- B. Unstable 5-carbon compound
- C. Unstable 4-carbon compound
- D. Unstable 3-carbon compound
Explanation: The correct option is A, as the first unstable product formed after CO2 fixation in the Calvin Cycle is the 6-carbon compound…
Correct answer: Unstable 6-carbon compound- A. -CH3
- B. -CHO
- C. -COOH
- D. -OH
Explanation: Chlorophyll A is a bluish-green pigment that is soluble in organic solvents like acetone and alcohol.
Correct answer: -CH3- A. Mg2+
- B. Ca2+
- C. K+
- D. Na+
Explanation: Mg2+ ions are essential in making chlorophyll similar to how iron ions are substantial in making haemoglobin.
Correct answer: Mg2+- A. Membrane of mitochondria
- B. Thylakoid membrane
- C. Membrane of Smooth Endoplasmic Reticulum
- D. Membrane of Rough Endoplasmic Reticulum
Explanation: The thylakoid membrane of the chloroplasts has these light-harvesting clusters called photosystems which contain various pigments needed…
Correct answer: Thylakoid membrane- A. Yellow-orange range
- B. Yellow-red range
- C. Orange-red range
- D. Blue-violet range
Explanation: Carotenoids are one of the accessory pigments in the chloroplasts which absorb light in the Blue-Green and Violet range.
Correct answer: Blue-violet range- A. -CHO
- B. -OH
- C. -CH3
- D. -NH2
Explanation: The only difference between chlorophyll-a and b is that chlorophyll-a has methyl (CH3) on the 2nd pyrrole ring and whereas chlorophyll-b…
Correct answer: -CH3- A. 3-carbon compound
- B. Ribulose bisphosphate
- C. 5-carbon compound
- D. 6-carbon compound
Explanation: Glycerate-3-phosphate, being a carboxylic acid, gets reduced to glyceraldehyde phosphate which is a 3-carbon compound.
Correct answer: 3-carbon compound- A. Glucose
- B. Sucrose
- C. Fructose
- D. None of the above
Explanation: Factual recall;Glucose is the monosaccharide, that makes up the disaccharide sucrose along with fructose, whereas sucrose is the form, in…
Correct answer: Sucrose- A. Structure of a Lenticel
- B. Hydathode showing gaseous vapour exchange
- C. Fungus reproducing by spore formation
- D. Algae reproducing by spore formation
Explanation: The figure shows the structure of 'Lenticel', which facilitates gaseous exchange and transpiration.
Correct answer: Structure of a Lenticel- A. Apoplast Theory
- B. Symplast Theory
- C. Vacuolar Theory
- D. Cytoplasmic Theory
Explanation: The theory that describes how water and dissolved chemicals are carried through the cell wall and intercellular gaps of plants is called…
Correct answer: Apoplast Theory- A. Saprotrophic mode
- B. Parasitic mode
- C. Photosynthesis mode
- D. Obligate mode
Explanation: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, using carbon…
Correct answer: Photosynthesis mode- A. Cellulose
- B. Cuticle
- C. Chitin
- D. Lignin
Explanation: Cellulose is a tough, fibrous, and water-insoluble polysaccharide that plays an integral role in keeping the structure of plant cell walls…
Correct answer: Cuticle- A. Red light
- B. Blue light
- C. Sunlight
- D. Green light
Explanation: Greenlight range spectrum is considered as least effective for the process of photosynthesis: The wavelength of green light is thought to…
Correct answer: Green light- A. corymbs
- B. umbel
- C. catkin
- D. panicle
Explanation: The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence.
Correct answer: umbel