Score: 0 / 25
Incorrect As: 0
Q 26: Dead plants on the surface of water due to oxygen depletion of the water body is called:
A) Deoxygenation
B) De-Nitrogenization
C) Eutrophication
D) None of these
Q 27: _____ male part of a flower?
A) Gynoecium
B) Thalamus
C) Calyx
D) Androecium
Q 28: The scientific cultivation of vegetables, fruits, and lawn grass is called:
A) Apiculture
B) Sericulture
C) Horticulture
D) None of these
Q 29: Release of ovule from ovary is called?
A) Fertilization
B) Ovulation
C) Implantation
D) Conception
Q 30: Osmosis:
A) Requires ATP
B) Results in the bursting of plant cells placed in pure water
C) Can cause a cell to become turgid
D) Is independent of solute concentrations
Q 31: The process of removing water in the form of vapor from the leaves is called:
A) Nutrition
B) Respiration
C) Perspiration
D) Transpiration
Q 32: If all the plants of the world die, alt the animals will also die due to shortage of?
A) Shelter
B) Cold air
C) Food
D) Oxygen
Q 33: Secondary growth of stems and roots:
A) Is brought about by the apical meristems
B) Is common in both monocots and eudicots
C) is brought about by vascular and cork cambia
D) Produces only xylem and phloem
Q 34: Which of the following element is not essential for plant:
A) Calcium
B) Phosphorus
C) Potassium
D) Nitrogen
Q 35: Which of the following element is not essential for plants ?
A) Iron
B) Zinc
C) Potassium
D) Iodine
Q 36: Which element of the following is not essential for plants?
A) Pb (Lead)
B) K (Potassium)
C) P (Phosphorous)
D) N (Nitrogen)
Q 37: Plants during the night exhale:
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Q 38: _____ is called the opium poppy.
A) Dried Latex
B) Root
C) Stem
D) None of these
Q 39: A plant with green leaves placed in red light will appear:
A) Black
B) Blue
C) Red
D) Green
Q 40: Who discovered that plants have life?
A) Robert Koch
B) Jagadish Chandra Bose
C) Paul Barg
D) George Snell
Q 41: A plant species is most likely to become invasive when introduced to a new area if:
A) it grows tall
B) has become invasive in other places where it has been introduced
C) closely related to species living in the area where it has been introduced
D) has specialized disseminators of its seeds
Q 42: These are actually dried flower buds used as a spice:
A) Cinnamon
B) Cloves
C) Saffron
D) None of these
Q 43: What is the female part of a plant called?
A) Pistil
B) Stamen
C) Sepal
D) Anther
Q 44: Cell wall o f plant cells is formed of:
A) Cellulose
B) Hemicellulose
C) Proteins
D) Fats
Q 45: Stoma, found in the epidermis of leaves, closes when guard cells:
A) Gain water
B) Lose water
C) Exchange gas
D) None of these
Q 46: The gibberellins:
A) Are responsible for phototropism and gravitropism
B) Are gases at room temperature
C) Are produced only by fungi
D) Cause bolting in some biennial plants
Q 47: Which of the following is primary producer?
A) Bacteria
B) Algae
C) Fungus
D) None of these
Q 48: What is defined as the minimal paint of soil moisture the plant requires?
A) Wilting point
B) Field Point
C) Soil Point
D) None of these
Q 49: A mature tree will take how much carbon dioxide from the atmosphere annually?
A) 20 kg
B) 22 kg
C) 25 kg
D) None of these
Q 50: The process by which plants make their food is:
A) Respiration
B) Photosynthesis
C) Digestion
D) Osmosis
