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Biology General Knowledge Questions

1.

Which among the following is the main fatty acid of the Sunflower Oil?
[A]Oleic acid
[B]Stearic acid
[C]Palmitic acid
[D]Linoleic acid

Linoleic acid

2.

Which among the following correctly denotes Mycorrhiza?
[A]Fungus + Roots
[B]Fungus + Stem
[C]Bacteria + Roots
[D]Bacteria + Stem

Fungus + Roots

3.

Which among the following is the source of Ricin, a toxic substance?
[A]Khesari Dal
[B]Castor bean
[C]Soya bean
[D]Guar gum

Castor bean
Ricin is a toxin that is fatal to humans in extremely small doses. Just 1 milligram is a deadly amount if inhaled or ingested, and only 500 micrograms of the substance would kill an adult if it were injected (CDC). Ricin comes from the castor bean plant (Ricinus communis) it is present in the mash that is left over after grinding castor beans into oil. It can be delivered as a powder, a mist or a pill. Ricin is a ribosome-inactivating protein it irrevocably damages the ribosomes that carry out protein synthesis in cells. The ribosome-inactivating proteins found in the castor bean plant are extremely powerful, and ricin poisoning can do serious damage to major organs.

4.

What is the number of essential amino acids?
[A]15
[B]20
[C]25
[D]29

20

5.

Karyotype or Idiogram represents the shape of the ____________?
[A]Nucleus
[B]Cell wall
[C]Chromosomes
[D]Nucleolus

Chromosomes

6.

Which among the following is also known as gonophore?
[A]Algal DNA
[B]Fungal DNA
[C]Bacterial DNA
[D]Bacterial RNA

Bacterial DNA

7.

In which of the following cell organelle a Tubulin protein is found?
[A]Golgi apparatus
[B]Endoplasmic reticulum
[C]Ribosomes
[D]Flagella

Flagella

8.

Consider the following:
1. Cell walls of Fungi are made up of Chitin
2. Cell walls of Diatoms are abundant in Silica
which among the above statements is / are correct ?
[A]1 only
[B]2 only
[C]1 & 2
[D]none of them

1 & 2

9.

How many millimicrons are in an Angstrom?
[A]1
[B]0. 1
[C]0. 01
[D]10

0.1

10.

Who discovered a Nucleus in a cell?
[A]Shimper
[B]Palade
[C]Robert Brown
[D]Schwann and Schleiden

Robert Brown

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