Dendrology Quiz Biology

Dendrology is the science and study of wooded plants (trees, shrubs, and lianas), specifically, their taxonomic classifications.

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Quiz Questions And Answers

Ordinary table salt is sodium chloride. What is baking soda?

Potassium chloride

Potassium carbonate

Potassium hydroxide

Sodium bicarbonate

Ozone hole refers to

hole in ozone layer

decrease in the ozone layer in troposphere

decrease in thickness of ozone layer in stratosphere

increase in the thickness of ozone layer in troposphere

Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

angiosperms

gymnosperms

monocotyledons

dicotyledons

Pollination is best defined as

transfer of pollen from anther to stigma

germination of pollen grains

growth of pollen tube in ovule

visiting flowers by insects

Plants receive their nutrients mainly from

chlorophyll

atmosphere

light

soil

Movement of cell against concentration gradient is called

osmosis

active transport

diffusion

passive transport

Photosynthesis generally takes place in which parts of the plant?

Leaf and other chloroplast bearing parts

stem and leaf

Roots and chloroplast bearing parts

Bark and leaf

Most fish do not sink in water because of the presence of I. swim bladder II. air bladder III. air sacs IV. air in spongy bones

I and II are correct

II and III are correct

III and IV are correct

Plants absorb dissolved nitrates from soil and convert them into

free nitrogen

urea

ammonia

proteins

Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported

all gymnosperms, except conifers

only angiosperms

only conifers

One of the following is not a function of bones.

Place for muscle attachment

Protection of vital organs

Secretion of hormones for calcium regulation in blood and bones

Plants absorb most part of water needed by them through their

embryonic zone

growing point

root hairs

Photo-oxidation is

photorespiration

photolysis

All of the above

Process of cell division can take place by

heterosis

fusion

mitosis

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