Science Quiz - Question & Answers Set - 18

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Home Practice Tests Science Practice Tests Science Quiz - Question & Answers Set - 18

15 Questions

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Science Quiz - Question & Answers Set - 18

Question 1 :
The first stable compound in Hatch and Slack cycle is?
APyruvic acid
BMalic acid
CCitric acid
DOxalo acetic acid

Question 2 :
------------ is an example for sulphur containing amino acid?
AAspartic acid
BMethionine

CGlycine
DIsoleucine

Question 3 :
Microevolution means?
AEvolution at geographical level
BEvolution in a small community
CChanges in gene frequency within a population

DSpatial evolution

Question 4 :
When a population formerly continuous in range, splits into two or more
geographically isolated populations and form new species, the mode of speciation
is
A Sympatric speciation
B Polytypic speciation
C Allopatric speciation

DEvolutionary speciation

Question 5 :
Endosperm is absent in?
AOrchidaceae

BCompositae
CPoaceae
DMalvaceae

Question 6 :
Tyloses are?
AComposite sieve plate
BSpecialized laticeferous canals
CTracheal plugs

DResin ducts

Question 7 :
In Dracaena, secondary vascular bundle is?
ABicollataral
BAmphicribral
CCollateral
DAmphivasal

Question 8 :
The pH of phloem sap is about------------------?
A5.5-6.5
B6.5 -7.5
C8.0-8.5

D4.5-5.5

Question 9 :
Q10 refers to?
AQuantum recharge
BRespiratory coefficient
CA temperature coefficient

DPhotosynthetic active radiation (PAR) coefficient

Question 10 :
Warburg effect explains decreased rate of photosynthesis due to?
AHigh concentration of CO2
BLow concentration of CO2
CHigh concentration of O2

DLow concentration of O2

Question 11 :
Fruit drop is caused by?
AAccumulation of more auxin in fruit than in stem
BAccumulation of less auxin in fruit than in stem

CAbsence of auxin in stem and roots
DAccumulation of auxin in roots

Question 12 :
The closure of lid of pitcher in Nepenthes is?
AA turgor movement
BA paratonic movement

CA tropic movement
DAn autonomic movement

Question 13 :
National park is an example of?
AIn vitro conservation
BEx situ conservation
CIn situ conservation

DAll of these

Question 14 :
In Funaria capsule, the peristome consist of ?
A16 teeth
B32 teeth

C64 teeth
D128 teeth

Question 15 :
Protonema is found in ?
ARiccia
BAnthoceros
CMarchantia
DFunaria

Model Question Papers