Showing posts with the label Biology

What is Body Mass Index (BMI)?

BMI stands for body mass index. Body mass index is a value derived from the body mass being divided by the square of the body height and is universally expressed in units of kg/m 2 .

What is dephosphorilation?

Dephosphorylation is the removal of a phosphate group from an organic compound by hydrolysis.

What is roughage?

The fibres of grains, fruits and green leafy vegetables that are not digested are called roughage. 

What is haploid cell?

Haploid cells are that have a single set of chromosomes (n). Such as - sperm, ovum, etc. 

What is cuticle?

A cuticle is a protective layer covering the epidermis of leaves, young plants. 

What is placenta?

A particular organ built up of material and fetal tissue forms a connection jointly is called the placenta.

What is photophosphorilation?

The process in which green plants prepare carbohydrate food from CO 2  and H 2 O by their chlorophyll pigments remaining in the chloroplast with the help of solar energy is known as photosynthesis. In this process, O 2  is evolved as a by-product and the simplest sugar glucose is formed. 

What is biological currency?

The importance of light in photosynthesis is immense. For the production of carbohydrates from H 2 O and CO 2 . the source of the required energy is light. Sunlight also takes part in the development of chlorophyll. With sunlight and when stomata are open, CO 2  can enter the leaves, and take part in the production of food. The rate of photosynthesis increases with the increase of light up to a definite limit.

What do you mean by GMO?

A genetically modified organism (GMO) is any organism whose genetic material has been altered using techniques in genetics generally known as recombinant DNA technology.

What is assimilatory power?

The process of producing ATP and NADPH+H +  by photophosphorylation is called assimilatory power. 

What do you mean by scientific name?

The scientific name of an animal is binomial which means it contains two parts. This naming is also referred to as binomial nomenclature.

What is classification?

Depending on their characteristics, living organisms are grouped into different taxons. This step-wise grouping is known as classification. 

What is embryo sac?

The female gametophyte of flowering plants, formed by the division of the haploid megaspore nucleus is called embryo sac.

The reason of higher rate of photosynthesis of lily plant than wheat plant.

We know that the rate of photosynthesis depends on some factors. Some of these are the shape and surface area of leaves, size of the stomata. In the case of lily, the leaves are larger compared to wheat leaves. As a result, lily plants have leaves with greater surface area and larger stomata. This makes the rate of photosynthesis more in lily plants than wheat plants. 

What is photolysis?

Photolysis is a chemical process by which molecules are broken down into smaller units through the absorption of light.

What the rate of photosynthesis would be in a newly developed leaf?

In a newly formed leaf, the rate of photosynthesis is low. In a new leaf, the number of chloroplast i.e amount of chlorophyll is low. Again, photosynthesis depends on the amount of chlorophyll. In a newly formed leaf, deficient amount of chlorophyll or the amount of chlorophyll being less leads to low rate of photosynthesis in that leaf. 

What is decomposer?

The microorganism, like some bacteria and fungus, gets their food from wastes of plants and animals and their dead bodies and decomposed into organic and inorganic matter required for the producer. These microorganisms are called decomposers or transformer. 

What is bioenergy?

Bioenergy is renewable energy processed by living organisms.

Why motha grass is called C4 plant?

In 1966, two Australian scientists, M.D. Hatch and CR. Slack discovered the reduction pathway of  CO 2 . The first stable substance formed in this pathway is 4-carbon based Oxaloacetic acid. Therefore, this pathway is also called  C 4  pathway, and plants demonstrating this pathway like Motha grass is called  C 4  plants.

What is the full form of AMP?

The full form of AMP is Adenosine Mono Phosphate.

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