Biology - Online Test
Q1. Elution can be done by using the enzyme
Answer : Option A
Explaination / Solution:
Elution is the process of extracting one material from another by washing with a solvent. Elution can be done by using enzyme agarase that can catalyze the hydrolysis of agar.
Q2. Rahul is anaemic and few days ago suffered from massive haemorrhage. Now what problems he may face :
Answer : Option D
Explaination / Solution:
If anemic person suffered from massive haemorrhage, the problem he may face includes, very low blood pressure, accumulation of wastes products in body and no glomerular filtration in kidney.
Q3. Some ancient organism still survive on earth but most of them have become extinct this is because of
Answer : Option C
Explaination / Solution:
Some ancient organism still survive on earth but most of them have become extinct this is because of presence of characteristic which enable them to survive better in natural conditions.
Q4. Individual component of perianth are called
Answer : Option B
Explaination / Solution:
The flowers in which sepals andpetals are not differentiated are called perianth. The individual component of perianth are called Tepals.
Q5. Condensed part of stem which is specialised to take part in sexual reproduction of angiosperm is called
Answer : Option B
Explaination / Solution:
The condensed part of stem which is specializedto take part in sexual reproduction of angiosperms is called flower. Flower produce seeds and fruits for propagation of species.
Q6. Ground tissue consists of
Answer : Option D
Explaination / Solution:
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three classes based on the nature of the cell walls.
Q7. What is the difference between the taxonomic categories of division and phylum?
Answer : Option A
Explaination / Solution:
In case of plants, classes with a few similar characters are assigned to a higher category called division, whereas phylum was used to refer animals. Hence, the correct option is Division refers to plants whereas phylum refers to animals.
Q8.
Identify the cytokinin given below.
Answer : Option B
Explaination / Solution:
Cytokinin is of different types. The cytokinin shown above is of kinetin which promotes cell division. It was isolated by Miller and Skoog from autoclaved herring sperm DNA.
Q9. Which of the following organism produce gemmules as asexual reproductive structure?
Answer : Option C
Explaination / Solution:
Gemmules are asexual reproductive structure produced by sponges. Chlamydomonas produce zoospores, hydra produce buds and Penicillium produces conidia.
Q10. Phosphorus will not make part of
Answer : Option A
Explaination / Solution:
Phosphorus is not present in amino acids. Nucleic acids, ATP and Teeth contain phosphorus. Amino acids polymerases to form protein.
