The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?

1. 1. Carbohydrates
   2. Lipids
   3. Protein and amino acids
   4. Amino acids

Stress indicating hormones are_____.

1. 1. Adrenaline
   2. Cortisol
   3. ACTH
   4. All of these

The simplest of oxygen producting photosynthetic organisms are_____.

1. 1. Cyanobacteria
   2. Algae
   3. Chlamydomonas
   4. Bacteria

Which of the following statement is incorrect about Glyoxisomes?

1. 1. They are abundant in soyabeans but absent in pea
   2. They contain enzymes which help in conversion of fatty acids into carbohydrate
   3. They are single membranous organelles
   4. They are present through out life of a plant and provide them with energy through Glyoxylate cycle

Peptide bond is_____.

1. 1. N-H link
   2. C-N link
   3. C- O link
   4. C-H link

Malarial parasite is injected into man as_____.

1. 1. Zygote
   2. Merozoites
   3. Sporozoites
   4. All of these

The cells present in testes and secrete testosterone are_____.

1. 1. Spermatocyte
   2. Interstitial cells
   3. Sertoli cells
   4. Germinal cell

Ground pries are also known as_____.

1. 1. Spike mosses
   2. Lycopods
   3. A & B 
   4. All of these

The first stage of development in which a cavity appears is the_____.

1. 1. Gastrula
   2. Balastula
   3. Morula
   4. Neurula

Primary structure of proteins determines_____.

1. 1. Bending of polypeptide chains
   2. Number of polypeptide chains involved
   3. Coiling of polypeptide chains
   4. Amino acid sequence