Introduction of Plant Physiology. We covered all the Introduction of Plant Physiology in this post for free so that you can practice well for the exam.
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MCQ on Introduction of Plant Physiology for Students
Which one of the following is not an essential micronutrient for plants?
(a) Boron
(b) Zinc
(c) Sodium
(d) Copper
Option c – Sodium
Which of the following plant hormone is mainly responsible for fruit ripening?
(a) Cytokinie
(b) Abscissic acid
(c) Ethylene
(d) None of these
Option c – Ethylene
Which one of the following gases is essential for the photosynthesis process?
(a) CO
(b) CO2
(c) N₂
(d) 0₂
Option b – CO2
Chlorophyll contains
(a) Iron
(b) Copper
(c) Magnesium
(d) Manganese
Option c – Magnesium
Photosynthesis using the invisible part of the sunlight is done by some
(a) Trees
(b) Algae
(c) Bacteria
(d) Fungi
Option c – Bacteria
Plants normally growing on the sand are known as
(a) Lithophytes
(b) Xerophytes
(c) Chasmophytes
(d) Psammophytes
Option d – Psammophytes
Insectivorous plants grow only on such soils which are deficient in
(a) Calcium
(b) Nitrogen
(c) Magnesium
(d) Phosphorus
Option b – Nitrogen
Substances necessary for autotrophic nutrition are
(a) CO₂ and H₂0₂
(b) Chlorophyll
(c) Sunlight
(d) All of the above
Option d – All of the above
In photosynthesis
(a) Light energy is converted into chemical energy
(b) Chemical energy is converted into light energy
(c) Chemical energy is converted into electrical energy
(d) Light energy is converted into mechanical energy
Which of the following organelles of a cell is involved in photosynthesis?
(a) Chloroplast
(b) Mitochondria
(c) Golgi bodies
(d) Endoplasmic reticulum
Option a – Chloroplast
The ultimate cause of water movement in a plant stem against gravity is
(a) Osmosis
(b) Photosynthesis
(c) Transpiration
(d) Diffusion
Option c – Transpiration
Photosynthesis using the invisible part of the sunlight is done by
(a) Trees
(b) Algae
(c) Fungi
(d) Bacteria
Option d – Bacteria
At which region of the electromagnetic spectrum does the plant photosynthesis?
(a) Red and Blue
(b) Green and Yellow
(c) Blue and Orange
(d) Violet and Orange
Option a – Red and Blue
Which of the following is a plant hormone?
(a) Adrenaline
(b) Insulin
(c) Oxytocin
(d) Auxin
Option d – Auxin
The water and mineral salts are transported to the various organs by which of the following?
(a) Xylem
(b) Phloem
(c) Cortex
(d) Cambium
Option a – Xylem
The food material prepared in the plants is transported to the various organs by which of the following?
(a) Xylem
(b) Phloem
(c) Cortex
(d) Cambium
Option b – Phloem
The suitable conditions in which the rate of evaporation occurs more fastly are
(a) Low speed of the wind
(b) High humidity
(c) Low humidity and high temperature
(d) Excess amount of water in the soil
Option c – Low humidity and high temperature
The process by which plants prepare their food is
(a) Carbohydrolysis
(b) Metabolic synthesis
(c) Photosynthesis
(d) Photorespiration
Option c – Photosynthesis
Peroxisomes are involved in the synthesis of
(a) glucose
(b) fatty acids
(c) glycine and serine
(d) nucleotides
Option c – glycine and serine
The major constituent of connective tissue is
(a) lipid
(b) carbohydrate
(c) cholesterol
(d) collagen
Option d – collagen
Bone-forming cells are
(a) osteoclasts
(b) osteoblasts
(c) chondroblasts
(d) chondroclasts
Option b – osteoblasts
Photosynthesis occurs in the
(a) Day
(b) Night
(c) Day and Night
(d) None of these
Option a – Day
The process of evaporation occurs from
(a) Root
(b) Stem
(c) Leaf
(d) Entire ‘plants’ surface
Option c – Leaf
In which one of the following physiological processes, excess water escapes in the form of droplets from a plant?
(a) Transpiration
(b) Guttation
(c) Secretion
(d) Excretion
Option b – Guttation
Which of the following is not primarily a functional green leaf? of an
(a) Manufacture of food
(b) Interchange of gases
(c) Evaporation of water
(d) Conduction of food and water
Option d – Conduction of food and water
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