Solved Past Paper
SPSC Lecturer Botany Past Paper 3 June 2023
Practice and review SPSC Lecturer Botany Past Paper 3 June 2023 with verified questions, correct answer keys, and detailed solutions.
Total Questions
50 Qs
Duration Limit
100 Min
Negative Mark
0.00
Attempt Count
0
Solved Questions & Explanations
50 questions with verified answers and explanations
1
A fern differs from a moss in having ______.
General Characteristics of Bryophytes
PYQ
a
Swimming archegonia
b
Swimming antherozoids
c
An independent sporophyte
d
An independent gametophyte
Also appeared in
2
Which of the following is the type of fertilization in Gymnosperms?
General Characteristics of Gymnosperms
PYQ
a
Mesogamous
b
Porogamous
c
Chalazogamous
d
None of these
Also appeared in
3
Perisperm is ______.
General Characteristics of Bryophytes
PYQ
a
Surviving nucellus in the seed
b
Outgrowth of the outer integument
c
Outgrowth of funiculus
d
All of these
Also appeared in
4
Largest ovule is that of ______.
General Characteristics of Bryophytes
PYQ
a
Goose
b
Gnetum
c
Pinus
d
Cycas
Also appeared in
5
Sweet potato is a modification of ______.
Anatomy of Root, Stem, and Leaf
PYQ
a
Root
b
Stem
c
Flowering axis
d
Bud
Also appeared in
6
Which of the following is classified on the basis of cotyledons?
General Characteristics of Bryophytes
PYQ
a
Bryophytes
b
Gymnosperms
c
Angiosperms
d
Thallophytes
Also appeared in
7
Which of the following is an insectivorous plant?
Principles of Plant Pathology
PYQ
a
Drosera
b
Ranunculus
c
Hydrilla
d
Castor
Also appeared in
8
Which of the following does not produce bark?
General Characteristics of Bryophytes
PYQ
a
Guava
b
Date palm
c
Solanum
d
Prunus
Also appeared in
9
Formation of embryo from an unfertilized egg is called ______.
General Characteristics of Bryophytes
PYQ
a
Parthenogenesis
b
Parthenocarpy
c
Pseudogamy
d
Amphimixis
Also appeared in
10
Leafless stem of onion which is produced to bear flower is called ______.
Floral Formula and Floral Diagram
PYQ
a
Scape
b
Rachis
c
Peduncle
d
Floral axis
Also appeared in
11
Which inflorescence belongs to composite family?
General Characteristics of Bryophytes
PYQ
a
Spadix
b
Umbel
c
Catkin
d
Capitulum
Also appeared in
12
Aquatic plants have ______.
Gene Regulation in Plants
PYQ
a
Well developed stomata
b
Well developed aerenchyma
c
Well developed roots
d
Well developed xylem
Also appeared in
13
Entomophilous flowers are ______.
General Characteristics of Bryophytes
PYQ
a
Very large in size
b
Colorless flower
c
Large colored and scented flower
d
Small flowers
Also appeared in
14
Banana plant develops from ______.
Principles of Plant Pathology
PYQ
a
Bud
b
Seed
c
Sucker
d
Stolon
Also appeared in
15
Who coined the term acid rain?
World Leaders in News
PYQ
a
Christ Ralph
b
Elmer Joseph Clark
c
Ernest Flower
d
Robert Angus Smith
Also appeared in
16
Peroxyacyl nitrate (PAN) is a by-product of ______.
Biological and Chemical Control of Plant Diseases
PYQ
a
Photochemical smog
b
Sulphurous smog
c
London smog
d
None of these
Also appeared in
17
Spirogyra differs from moss-protonema in having ______.
World Leaders in News
PYQ
a
Pyrenoids
b
Branched filaments
c
Discoid chloroplasts
d
Rhizoidal branches
Also appeared in
18
What is the main source of pollutants of nitrogen oxides, sulphur oxides, and carbon oxides?
Nitrogen Cycle and Nitrogen Fixation
PYQ
a
Photochemical reactions in the atmosphere
b
Burning fossil fuels at high temperatures
c
Industrial process
d
All of these
Also appeared in
19
The largest herbarium in the world is located at ______.
General Characteristics of Bryophytes
PYQ
a
Geneva
b
New York
c
Berlin
d
Kew
Also appeared in
20
International rice institute is in ______.
General Characteristics of Bryophytes
PYQ
a
Philippines
b
U.S.A
c
Japan
d
U.K
Also appeared in
21
Phytoalexins are like antifungal or fungistatic substances produced by the host as defensive measure after infection and are generally:
Classification of Fungi
PYQ
a
Proteins
b
Lipids
c
Glycoproteins
d
Phenolic compounds
Also appeared in
22
Pyrenoids are made up of ______.
General Characteristics of Bryophytes
PYQ
a
Core of starch surrounded by sheath of protein
b
Proteinaceous center and starchy sheath
c
Core of protein surrounded by fatty acids
d
Core of nucleic acid surrounded by protein sheath
Also appeared in
23
Which one of the following is commonly known as "Gulf weed"?
Life Cycle of Chlamydomonas
PYQ
a
Batrachospermum
b
Fucus
c
Sargassum
d
Chlamydomonas
Also appeared in
24
Monkey's puzzle is a common name for ______.
Common Plant Diseases in Pakistan
PYQ
a
Araucaria imbricata
b
Cycas revoluta
c
Gnetum gnemon
d
Pinus gigantea
Also appeared in
25
Partial root parasite is ______.
General Characteristics of Bryophytes
PYQ
a
Santalum
b
Loranthus
c
Viscum
d
Cuscuta
Also appeared in
26
DNA can be specifically tested by ______.
General Characteristics of Bryophytes
PYQ
a
Iodine
b
Feulgen reaction
c
Rollin test
d
Lowry test
Also appeared in
27
Which of the following element is necessary for translocation of sugar in plants?
Gene Regulation in Plants
PYQ
a
Boron
b
Molybdenum
c
Manganese
d
Iron
Also appeared in
28
Pneumatophores are usually present in ______.
Principles of Plant Pathology
PYQ
a
Mangrove plant
b
Hydrophytes
c
Epiphytes
d
Heliophytes
Also appeared in
29
Which fruit is a type of true nut?
General Characteristics of Bryophytes
PYQ
a
Ground nut
b
Walnut
c
Cashew nut
d
Areca Nut
Also appeared in
30
A complete flower is that flower which has ______.
General Characteristics of Bryophytes
PYQ
a
Calyx, corolla and androecium
b
Calyx and corolla
c
Corolla, androecium and gynoecium
d
Calyx, corolla, androecium and gynoecium
Also appeared in
31
His principles, he has to be very careful.
Principles of Plant Pathology
PYQ
a
With regard of
b
With regard on
c
With regard to
d
None of these
Also appeared in
32
She ______ in the sun one hour.
General Characteristics of Bryophytes
PYQ
a
Sitting
b
Has been sitting
c
Has been sit
d
Has sit
Also appeared in
33
I will look ______ it in the book.
General Characteristics of Bryophytes
PYQ
a
At
b
For
c
Of
d
None of these
Also appeared in
34
I haven't seen you ______.
General Characteristics of Bryophytes
PYQ
a
For
b
Since
c
From
d
Till
Also appeared in
35
The children could not stop ______.
General Characteristics of Bryophytes
PYQ
a
Laugh
b
Laughing
c
Laughed
d
To laugh
Also appeared in
36
The white shirt got ______ by the dirt.
General Characteristics of Bryophytes
PYQ
a
Stained
b
Stain
c
Staining
d
Strain
Also appeared in
37
Plural of thief is ______?
General Characteristics of Bryophytes
PYQ
a
Thieve
b
Thiefs
c
Thieves
d
Thiefes
Also appeared in
38
"Far cry from" means ______?
General Characteristics of Bryophytes
PYQ
a
To present a counter argument
b
To take on a task that is way too big
c
The show has come to an end
d
It's all over
Also appeared in
39
One who believes in the power of fate:
World Leaders in News
PYQ
a
Fatalist
b
Optimist
c
Pessimist
d
Parsimonious
Also appeared in
40
"Get your goat" means ______?
General Characteristics of Bryophytes
PYQ
a
To pacify someone
b
To irritate someone
c
To soothe someone
d
To Hug
Also appeared in
41
Which of the following is not multicellular:
Life Cycle of Chlamydomonas
PYQ
a
Oedogonium
b
Chara
c
Spirogyra
d
Chlamydomonas
Also appeared in
42
The Excretion of Amoeba takes place mainly in:
General Characteristics of Bryophytes
PYQ
a
Vacuole
b
General surface
c
Pseudopodia
d
Contractile vacuole
Also appeared in
43
Plants which cannot manufacture their food are known as:
Gene Regulation in Plants
PYQ
a
Autotrophs
b
Heterotrophs
c
Halophytes
d
Epiphytes
Also appeared in
44
All Fungi are Always ______.
Classification of Fungi
PYQ
a
Parasites
b
Autotrophs
c
Heterotrophs
d
Saprophytes
Also appeared in
45
Mycelium of Albugo is ______.
Structure of Fungal Hyphae and Mycelium
PYQ
a
Unseptate and multinucleate
b
Unseptate and uninucleate
c
Septate and uninucleate
d
Septate and multinucleate
Also appeared in
46
Yeast is included in ______.
World Leaders in News
PYQ
a
Phycomycetes
b
Ascomycetes
c
Basidiomycetes
d
Deuteromycetes
Also appeared in
47
A bacteriophage can be recognized by its ______.
General Characteristics of Bryophytes
PYQ
a
Rhomboidal shape
b
Tadpole shape
c
Irregular shape
d
Rounded shape
Also appeared in
48
What is a vector?
Plant Disease Triangle
PYQ
a
Disease transmitted by host
b
Natural reservoir disease
c
Human parasite
d
Pathogenic
Also appeared in
49
The centre of a Moss axis is occupied by ______.
General Characteristics of Bryophytes
PYQ
a
A large pith
b
Conducting tissues
c
Xylem
d
Phloem
Also appeared in
50
Moss protonema resembles:
Classification of Algae
PYQ
a
A single-celled algae
b
Multicellular green algae
c
Cyanobacteria
d
Multicellular brown algae
Also appeared in
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Topic Weightage
General Characteristics of Bryophytes
52%
Principles of Plant Pathology
8%
World Leaders in News
8%
Gene Regulation in Plants
6%
Classification of Fungi
4%
Life Cycle of Chlamydomonas
4%
General Characteristics of Gymnosperms
2%
Anatomy of Root, Stem, and Leaf
2%
Floral Formula and Floral Diagram
2%
Biological and Chemical Control of Plant Diseases
2%
Nitrogen Cycle and Nitrogen Fixation
2%
Common Plant Diseases in Pakistan
2%
Structure of Fungal Hyphae and Mycelium
2%
Plant Disease Triangle
2%
Classification of Algae
2%