ket真题6及答案电子.docVIP

ket真题6及答案电子

一、单项选择题（总共10题，每题2分）

1.Whichofthefollowingisarenewableenergysource?

A.Coal

B.Naturalgas

C.Solarenergy

D.Nuclearenergy

Answer:C

2.Theprocessbywhichplantsconvertlightenergyintochemicalenergyiscalled:

A.Photosynthesis

B.Respiration

C.Fermentation

D.Oxidation

Answer:A

3.Whatistheprimaryfunctionofthemitochondriainacell?

A.Proteinsynthesis

B.DNAreplication

C.Energyproduction

D.Celldivision

Answer:C

4.Whichofthefollowingisagreenhousegas?

A.Oxygen

B.Nitrogen

C.Carbondioxide

D.Helium

Answer:C

5.ThestudyoftheEarthsatmosphereisknownas:

A.Oceanography

B.Meteorology

C.Geology

D.Biology

Answer:B

6.Whatisthechemicalsymbolforgold?

A.Ag

B.Au

C.Go

D.Gd

Answer:B

7.Theprocessofbreakingdowncomplexsubstancesintosimpleronesiscalled:

A.Synthesis

B.Decomposition

C.Oxidation

D.Reduction

Answer:B

8.Whichofthefollowingisavectorquantity?

A.Mass

B.Temperature

C.Velocity

D.Energy

Answer:C

9.Thestudyoflivingorganismsandtheirinteractionswiththeenvironmentisknownas:

A.Chemistry

B.Physics

C.Biology

D.Astronomy

Answer:C

10.WhatistheSIunitofelectriccurrent?

A.Volt

B.Ampere

C.Ohm

D.Watt

Answer:B

二、多项选择题（总共10题，每题2分）

1.Whichofthefollowingarerenewableenergysources?

A.Solarenergy

B.Windenergy

C.Geothermalenergy

D.Coal

Answer:A,B,C

2.Whatarethemaincomponentsofthecellmembrane?

A.Proteins

B.Lipids

C.Carbohydrates

D.Nucleicacids

Answer:A,B,C

3.Whichofthefollowingaregreenhousegases?

A.Carbondioxide

B.Methane

C.Nitrousoxide

D.Oxygen

Answer:A,B,C

4.Whatarethefunctionsofthemitochondriainacell?

A.Energyproduction

B.Proteinsynthesis

C.DNAreplication

D.Celldivision

Answer: