KPPSC PAST PAPERS

1.Photosynthesis is described as a process that: _____________?

Breaks down moleculesStores energy in chemical bondsReleases energyUses up oxygen

2.Optimum temperature for photosynthesis is: ___________?

10–20°C15–25°C25–35°C35–45°C

3.Apical meristem is responsible for: ____________?

Secondary growthRoot thickeningPrimary growthLeaf color

4.The process that releases energy in cells is called: __________?

PhotosynthesisRespirationFermentationDigestion

5.The process that allows material movement through the cell membrane with energy expenditure is called: _________?

Passive transportDiffusionActive transportOsmosis

6.Alternate and opposite leaf arrangement is known as: ___________?

Spiral phyllotaxyOpposite phyllotaxyRandom phyllotaxyWhorled phyllotaxy

7.Short stalk that holds the flower on the main stem is called: ___________?

PetiolePeduncleTendrilStipule

8.Deficiency of iron in plants causes:

WiltingStunted growthChlorosisLeaf curling

9.Plant vacuoles are filled with: ___________?

CytoplasmWaterCell sapChlorophyll

10.First plant hormone discovered:

CytokininsGibberellinsAuxinsEthylene

11.Effect of ABA on seeds:

Stimulates seed germinationInhibits seed germinationEnhances seed growthPromotes fruit development

12.White scar present on the concave side of a bean is called: __________?

NodeHilumCotyledonEmbryo

13.Binomial nomenclature was introduced by: ____________?

Charles DarwinCarl WoeseCarolus LinnaeusGregor Mendel

14.Achene fruit example:

AppleSunflowerOrangeBanana

15.The promoter region works in which process?

TranslationDNA replicationTranscriptionProtein synthesis

16.The purine ring contains:

Adenine and CytosineGuanine and ThymineAdenine and GuanineUracil and Cytosine

17.Ribosomes are made up of: ___________?

DNA and RNAProteins and RNALipids and proteinsDNA and lipids

18.Leaves that protect the bud:

CotyledonsScale leaves or bud scalesPetiolesTendrils

19.Bi-products of aerobic respiration:

Glucose and oxygenCO₂ and H₂OOxygen and ATPGlucose and CO₂

20.Mycorrhizal association shows which type of relationship?

ParasiticMutualisticCommensalisticCompetitive