321. Animal and plant cells differ in their

A Movement
B Growth
C Nutrition
D Respiration
Answer :   Nutrition
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322. Unit membrane model of plasmembrane was propsed by

A Robertson
B Singer
C Danielli
D Robert lamella
Answer :   Robertson
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323. Blepheroplast is a type of

A Centriole
B Plastid
C Cilia
D Mitochondria
Answer :   Centriole
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324. All plastids have similar structure because they can

A store starch, lipids and proteins
B get transformed from one type to another
C perform same function
D be present together
Answer :   get transformed from one type to another
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325. Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

A Peroxisomes
B Golgi bodies
C Polysomes
D Endoplasmic reticulum
Answer :   Golgi bodies
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326. Strongest evidence that DNA is genetic material comes from

A Chromosomes contains DNA
B Transformation of bacterial cells
C DNA is present in nucleus
D DNA is not present in cytoplasm
Answer :   Transformation of bacterial cells
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327. Which of the following enzyme is used to join DNA fragments

A Terminase
B Endonuclese
C Ligse
D DNA polymerase
Answer :   Ligse
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328. Correct order of molecular weight is

A DNA < r-RNA < t-RNA
B DNA < m-RNA
C T-RNA < m-RNA < DNA
D T-RNA < DNA < m-RNA
Answer :   DNA < r-RNA < t-RNA
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329. The middle lamella is composed of

A Pectates
B Cellulose
C Lignin
D Proteins
Answer :   Pectates
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330. The peroxisomes areassociated with the phenomenon of

A Oxidativa anabolism
B De-gradation of H2O
C Anaerobic respiration
D Photorespiration and degradation of H2O2
Answer :   Photorespiration and degradation of H2O2
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