The plants have a transport system called the _______________
  • Cardiovascular system
  • Vascular system
  • Angular system
  • Excretory system
  • Transport system
Xylem transports food to different parts of the plant
  • TRUE
  • FALSE
Cohesion - The state of sticking together of surfaces of different compositions
  • TRUE
  • FALSE
In Yoga, the working with the breathing system is called ________
  • Pranayama
  • Hawaayama
  • Naakayama
  • Shawasama
  • Surya Namaskar
The circulatory system is also called as _________
  • heartery system
  • Cardiovascular system
  • Blood pumping system
  • Nervous system
  • Blood bank
The right atrium:
  • Receives Oxygenated blood
  • Receives Deoxygenated blood
  • Pumps Oxygenated blood
  • Pumps Deoxygenated blood
__________ are the structural and functional units of kidneys that filter excess waste, urea and water from the blood
  • Neurons
  • Nephrons
  • Neons
  • Plasma cells
  • RNA
Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a more concentrated solution into a less concentrated one
  • TRUE
  • FALSE
Substances transported in plants are
  • water
  • minerals
  • food
  • all of the above
Diffusion is a major method of transport of materials in
  • tall plants
  • unicellular plants
  • Multicellular plants
  • Both (b) and (c)
Diffusion is not effective in
  • solids
  • liquids
  • gases
  • all of the above
Xylem fibres are made of –
  • Parenchyma cells
  • Collenchyma cells
  • Sclerenchyma cells
  • Aerenchyma cells
Which of the following do not take part in conduction?
  • Tracheids
  • Vessels
  • Sieve tubes
  • Fibres
Which of the phloem cells help in storage of food?
  • Sieve tubes
  • Companion cells
  • Phloem parenchyma
  • Phloem fibres
Absorption of water in plants take place by
  • osmosis
  • diffusion
  • both (a) and (b)
  • none of the above
Diffusion occurs when molecules move
  • from lower concentration to higher concentration.
  • from higher concentration to lower concentration through a membrane.
  • from higher concentration to lower concentration.
  • when energy is used.
Ascent of sap in plants takes place through
  • Cortex
  • Epidermis
  • Xylem
  • Phloem
If the xylem vessels of a plant are plugged
  • the leaves will turn yellow
  • no food will be made
  • the plant will wilt (shrivel)
  • the plant will continue to grow
Force responsible for the ascent of sap is
  • capillary force
  • root pressure
  • transpirational pull
  • all of the above
Raisins swell when put in
  • rainwater
  • saturated salt solution
  • mustard oil
  • saturated sugar solution
The root-hairs are suited for absorbing water from the soil because
  • they have a large surface area
  • they have a semi-permeable membrane
  • they contain a solution of higher concentration than the surrounding water.
  • all of the above
Transpiration is defined as:
  • the rise of water up to the stem of a plant.
  • the elimination of water with dissolved water products.
  • the loss of water as water vapour from the aerial parts of a plant.
  • the loss of water as water vapour from the roots as well as the leaves of the plant.
Which one of the following favours the fastest transpiration rate?
  • A cool, humid, windy day
  • A hot, humid, windy day
  • A hot, humid, still day
  • A hot, dry, windy day
Movement of molecules against a concentration gradient is called
  • diffusion
  • osmosis
  • active transport
  • all of the above
Nitrogen, Phosphorus and Potassium are examples of
  • macronutrients
  • micronutrients
  • trace elements
  • all of the above
Deficiency of magnesium leads to
  • slow growth
  • yellowing of leaves
  • curling of leaves
  • shoots fail to develop
The ‘girdling experiment’ shows that
  • water is transported by xylem
  • food is transported by phloem
  • transport is unidirectional
  • transport is bi directional
Mineral ions are transported by
  • diffusion
  • osmosis
  • active transport
  • none of the above
How do plants get their energy?
  • through a reaction called chlorophyll 
  • by a process called photosynthesis 
  • by absorbing mineral nutrients from soil 
  • by eating other organisms 
Three main things plants need to survive. 
  • sunlight, oxygen, soil
  • soil, carbon dioxide, sunlight 
  • sunlight, air, soil 
  • sunlight, air, water 
The source of energy plants use to make food
  • photosynthesis 
  • air 
  • sunlight 
  • soil 
What two materials are used in photosynthesis?
  • carbon monoxide and water 
  • carbon dioxide and soil 
  • carbon dioxide and oxygen
  • carbon dioxide and water 
Stomata is found in the _______. 
  • stems 
  • roots 
  • leaves 
  • flower 
The green pigment in leaves that captures the energy from the sun. 
  • borophyll 
  • chlorophyll 
  • photosynthesis 
  • leaves 
Where does carbon dioxide for photosynthesis come from?
  • soil 
  • air 
  • sun 
  • water 
Where does water for photosynthesis come from?
  • only from the soil 
  • only from the air 
  • only from the rain 
  • both the soil and air 
Which plant part is responsible for capturing sunlight and carrying out photosynthesis?
  • leaves 
  • stem
  • flower
  • roots 
The function of transpiration is to transport _______ and ____________ from the roots to the leaves
  • water, mineral salts
  • food, nutrients
  • water, food
Which of the following indicates the pathway of water through a plant?
  • root hair cell --> xylem --> stomata
  • stomata --> root hair cell --> xylem
  • xylem --> stomata --> root hair cell
Which is true?
  • 95% of water taken by the plant evaporates through transpiration
  • 9% of water taken by the plant evaporates through transpiration
  • Evaporation through transpiration accounts only for 1% of all the water the plant takes in
  • Evaporation through transpiration is minuscule
Which statement correctly identifies the substance and direction it is transported in the xylem?
  • Water, only upwards
  • Glucose, only upwards
  • Water, up and down the plant
  • Glucose, up and down the plant
Cells that control the opening and closing of stomata
  • Cuticle
  • Guard cell
  • Vascular tissue
  • Stomata
Which of the following statements is not true for diffusion?
  • Molecules move from region of high concentration to region of low concentration
  • Molecules move from region of low concentration to region of high concentration
  • Semi permeable membrane is required
  • Happens for solids, liquids and gases
Xylem fibres help in
  • conduction of water
  • conduction of minerals
  • mechanical support
  • storage of food
Which of the following take part in conduction of water in the xylem?
  • Fibres
  • Vessels
  • Both a and b
  • None of the above
Absorption of water in plants take place by
  • osmosis
  • diffusion
  • Both a and b
  • None of the above
Root hairs help in absorption of water by
  • increasing the surface area
  • decreasing the surface area
  • holding the plant in the soil
  • none of the above
Osmosis can happen
  • through a permeable membrane
  • through a semi-permeable membrane
  • no membrane required
  • through all kinds of membranes
Which one of the following favours the fastest transpiration rate?
  • A cool, humid, windy day
  • A hot, humid, windy day
  • A hot, humid, still day
  • A hot, dry, windy day
Movement of molecules against a concentration gradient is called
  • Diffusion
  • Osmosis
  • Active transport
  • All of the above
Nitrogen, Phosphorus and Potassium are examples of
  • macronutrients
  • micronutrients
  • trace elements
  • all of the above
Deficiency of magnesium leads to
  • slow growth
  • yellowing of leaves
  • curling of leaves
  • yellowing of leaves
The ‘girdling experiment’ shows that
  • water is transported by xylem
  • food is transported by phloem
  • transport is unidirectional
  • transport is bi directional
Transpiration helps in
  • transport of water and minerals
  • cooling the plant
  • both (a) and (b)
  • none of the above
Swelling of raisins when kept in water is an example of
  • diffusion
  • transpiration
  • evaporation
  • osmosis
Trace elements are nutrients that are
  • required in large amounts
  • required in small amounts
  • required sometimes
  • never required
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