11th Standard Syllabus & Materials

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11th Standard Biology English Medium Free Online Test 1 Mark Questions 2020 - Part Five

Published on: 11/11/2020

Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Biology

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Questions:

Multiple Choice Question

10 x 1 = 10

Extra chromosomal element in bacterial cells are __________ .

(a)

plasmids

(b)

mesosomes

(c)

histones

(d)

genophores

Which of the plant virus contains DNA as genome?

(a)

Tobacco mosaic virus

(b)

Cauliflower mosaic virus

(c)

Sugarcane mosaic virus

(d)

Cucumber mosaic virus

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as wen as animals and can survive without oxygen?

(a)

Bacillus

(b)

Pseudomonas

(c)

Mycoplasma

(d)

Nostoc

Which one of the following is used in manufacture of alcohol?

(a)

Bacteria

(b)

Yeast

(c)

Virus

(d)

Slime mould

The Earthy Odour is produced from the soil after rain due to presence of ________.

(a)

Basidiomycetes

(b)

Actinobacteria

(c)

Deutromycetes

(d)

Oomycetes

The genetic material in Wound Tumour Virus ____________.

(a)

ds RNA

(b)

ss RNA

(c)

ds DNA

(d)

ss DNA

Kidney of frog is _____.

(a)

Archinephros

(b)

Pronephros

(c)

Mesonephros

(d)

Metanephros

Aggregate fruit develops from _____.

(a)

Multicarpellary, apocarpous ovary

(b)

Multicarpellary, syncarpous ovary

(c)

Multicarpellary ovary

(d)

Whole inflorescence

Identify the Archaebacterium.

(a)

Acetobacter

(b)

Erwinia

(c)

Treponema

(d)

Methanobacterium

10.

Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other.

(a)

Neither lipid nor proteins can flip-flop

(b)

Both lipid and proteins can flip flop

(c)

While lipids can rarely flip-flop proteins cannot

(d)

While proteins can flip-flop lipids cannot