Biology Selected Questions and Answers Set 9

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Q.1:- Bacteria helpful in making curd from milk ?

  1. Mycobacterium
  2. Staphlio Coccus
  3. Lacto Bacillus
  4. Yeast

Ans:- (c) Lacto Bacillus

Q.2:- Which of the following unicellular algae are used as source of Oxygen in space research ?

  1. Ulothrix
  2. Spirogyra
  3. Chlorella
  4. Odogonium

Ans:- (c) Chlorella

Q.3:- LSD is obtained from ?

  1. Bacteria
  2. Fungi
  3. 2, 4-D
  4. Alcohol

Ans:- (b) Fungi

Q.4:- The plant that behave as a root prarasite is ?

  1. Ficus
  2. Santalum
  3. Cuscuta
  4. Euphorbia

Ans:- (b) Santalum

Q.5:- Trunk of tree increases in grith due to cell division in ?

  1. Vascular Tissue
  2. Meristematic Tissue
  3. Cortex
  4. Pith

Ans:- (b) Meristematic Tissue

Q.6:- Example of positive geotropism is ?

  1. Closing of flower
  2. Upward growth of stem
  3. Downward growth of root
  4. Lateral growth of root

Ans:- (c) Downward growth of root

Q.7:- Dolphine is the example  of class ?

  1. Amphibia
  2. Aves
  3. Mammal
  4. Pices

Ans:- (c) Mammal

Q.8:- Pavo cristatus is the zoological name of ?

  1. Tiger
  2. Frog
  3. Man
  4. Peacock

Ans:- (d) Peacock

Q.9:- To complete one heart beat the time taken is ?

  1. 1 sec
  2. 1 minute
  3. 1.5 sec
  4. 0.8 sec

Ans:- (d) 0.8 sec

Q.10:- Maximum nutritive element absorbed by blood from which part of alimentary canal ?

  1. Large Intestine
  2. Mouth
  3. Small Intestine
  4. Stomach

Ans:- (c) Small Intestine

Q.11:- Largest part of human brain is ?

  1. Cerebellum
  2. Cerebrum
  3. Olfactory Labbe
  4. Mid Brain
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Ans:- (b) Cerebrum

Q.12:- Person having blood group B can donate the blood to person having group ?

  1. A and O
  2. B and O
  3. A and AB
  4. B and AB

Ans:- (d) B and AB

Q.13:- Leucoplast represent ?

  1. Colourless Plastids
  2. Proplastids
  3. Cell Adhesives
  4. Palastids with Variable Colouration

Ans:- (a) Colourless Plastids

Q.14:- Enzymes are ?

  1. Proteins
  2. Lipids
  3. Steroids
  4. Carbohydrates

Ans:- (a) Proteins

Q.15:- A substance which is more than 80% in the cell is ?

  1. Protein
  2. Fat
  3. Mineral
  4. Water

Ans:- (d) Water

Q.16:- Which one of the following is modified stem ?

  1. Carrot
  2. Sweet Potato
  3. Coconut
  4. Potato

Ans:- (d) Potato

Q.17:- The largest leaves occur in ?

  1. Raflesia
  2. Victoria
  3. Banana
  4. Nicotiana

Ans:- (b) Victoria

Q.18:- Which one of the following is edible fungi ?

  1. Mucor
  2. Penicillum
  3. Agaricus
  4. Rizopus

Ans:- (c) Agaricus

Q.19:- The disease AIDS spread ?

  1. By Insects
  2. By Breathing
  3. By Sexual Contact
  4. None of these

Ans:- (c) By Sexual Contact

Q.20:- Cell wall of Algae is made up of ?

  1. Chitine
  2. Subarine
  3. Celullose
  4. Cutine

Ans:- (c) Celullose

Q.21:- Cell wall of fungi is made up of ?

  1. Lipids
  2. Cellulose
  3. Protein
  4. Chitin & Hemicellulose

Ans:- (d) Chitin & Hemicellulose

Q.22:- Gibberellins, the plant growth hormone, are extracted from ?

  1. Fungus
  2. Bacterium
  3. Algae
  4. None

Ans:- (a) Fungus

Q.23:- Food prepared by plant is transported to different part of plant through ?

  1. Xylem
  2. Cortex
  3. Phloem
  4. Pith
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Ans:- (c) Phloem

Q.24:- Heterothallism was discovered by ?

  1. E.J. Butler
  2. A.F. Blakelec
  3. J.H. Graigic
  4. B.B. Mundkar

Ans:- (b) A.F. Blakelec

Q.25:- Protozoa which produce Kala-Azar ?

  1. Entamoeba
  2. Trypanosoma
  3. Trichomonas
  4. Leishmania

Ans:- (d) Leishmania

 

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