Exams Prep Master
We all are living in this world. Daily in our surroundings, we see many organisms. Not up to the organisms we meet our friends, family members etc. we can observe that we all are not the same. We have differences in colour height etc. apart from human beings we have several organisms which are different from each other such as plants, monkeys, donkeys, bacteria etc. they possess different characteristics, behaviours, functions, structures, way they are living. But we all are living on the same earth and sharing the same resources. Such that we call it biodiversity. Living all life forms together. We are now in this present day society facing different viruses, bacterial infections, and different organisms are emerging so it is important to learn about this diversity in living organisms. Here, we will be discussing some of the important multiple choice type questions.
Read More: Binomial Nomenclature
Ques: Who classified the animals according to the place they lived on whether they live on land, water or air?
- Ernst Haeckel
- Aristotle
- Carl Woese
- Whitaker
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Ans: option (b)
Explanation: many people are confused about the origin of different species and organisms in the world. From the past to till now it is been an interesting thing for many researchers. while many people are thinking about the segregation of the organisms, Greek thinker Aristotle classified animals according to the place they are living in.
Ques: In the present days on which basis, we are classifying the organisms?
- Structure
- Behaviour
- Cell
- Characteristics
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Ans: option (c)
Explanation: many people are confused about the origin of different species and organisms in the world. From the past to till now it is been an interesting thing for many researchers. in the present-day organisms are classified based on the type of cells they are having whether they are unicellular or multicellular, cell functioning, cell structure.
Ques: Which of the following can perform photosynthesis?
- Plants
- Animals
- Humans
- Bacteria
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Ans: option (a)
Explanation: photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide and minerals into oxygen and energy-rich organic compounds. photosynthesis is the process of acquiring food by the use of sunlight. This is done by the plant cells.
Ques: Which of the following has the membrane-bounded organelles, including a nucleus, which will allow the cellular processes?
- Eukaryotic cell
- Plants
- Unicellular organisms
- Multicellular organisms
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Ans: option (a)
Explanation: A eukaryotic cell has membrane-bound organelles, including a nucleus, which allow cellular processes to be carried out efficiently in isolation from each other. Therefore, organisms that do not have a clearly demarcated nucleus and other organelles would need to have their biochemical pathways organized in very different ways.
Ques: Who described the idea of evolution first?
- Charles Darwin.
- Ernst Haeckel
- Aristotle.
- Carl Woese.
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Ans: option (a)
Explanation: Many biologists are trying to classify the organisms such as Ernst Haeckel, Robert Whittaker, Carl Woese. Whittaker classified organisms into 5 kingdoms they are: Monera, Protista, Fungi, Plantae, Animalia.
Ques: What is the book written by Charles Darwin?
- Evolution of species
- The Origin of Species
- Classification of organisms
- Hierarchy of classification
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Ans: option (b)
Explanation: Most life forms that we see today have arisen by an accumulation of changes in body design that allow the organism possessing them to survive better. Charles Darwin was the first person to describe the idea of evolution in the year 1859. The book written by him was The Origin of Species.
Ques: The diversity of all life forms is called as?
- Habitat
- Ecosystem
- Diversity
- Biodiversity
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Ans: option (d)
Explanation: A variety of life forms are living on the earth these are combinedly formed the environment. We call this biodiversity. It means all life forms exist together. It is a word commonly used to refer to the variety of life forms found in a particular region. Diverse life forms share the environment and are affected by each other too. As a result, a stable community of different species comes into existence.
Ques: Which region on the earth is called mega diversity?
- Tropic of cancer
- Tropic of Capricorn
- The region between Tropic of Capricorn and tropic of cancer.
- Polar region
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Ans: option ( c )
Explanation: the areas which receive more amount of light have a greater number of life forms. On the earth, the regions between the tropic of Capricorn and the tropic of cancer receive more sunlight. Thus, there will be a greater number of landforms existing in these areas.
Ques: Which of the following is not in the five kingdoms proposed by the Whittaker?
- Bacteria
- Monera
- Fungi
- Plantae
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Ans: option (a)
Explanation: many biologists are trying to classify the organisms such as Ernst Haeckel, Robert Whittaker, Carl Woese. Whittaker classified organisms into 5 kingdoms they are: Monera, Protista, Fungi, Plantae, Animalia. These groups are formed on the basis of their cell structure, mode, and source of nutrition and body organization. The modification Woese introduced by dividing the Monera into Archaebacteria (or Archaea) and Eubacteria (or Bacteria) is also in use.
Ques: Which organisms do not have a defined nucleus or organelles?
- Protista
- Fungi
- Monera
- Plantae
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Ans: option ( c )
Explanation: These are the type of organisms that do not have a defined nucleus or organelles, nor do any of them show multi-cellular body designs. On the other hand, they show diversity based on many other characteristics. Some of them have cell walls while some do not.
Ques: The organisms which produce their own food is called ______?
- Heterotrophic
- chemotrophs
- Autotrophic
- Saprotrophic
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Ans: option (c)
Explanation: the organisms which produce food by their own is called autotrophs. Auto means self or by its own and trophic means producers. The mode of nutrition of organisms in this group can be either by synthesising their own food (autotrophic) or getting it from the environment (heterotrophic). This group includes bacteria, blue-green algae or cyanobacteria, and mycoplasma.
Ques: Protista contains which kind of organisms?
- multicellular
- unicellular
- autotrophic
- heterotrophic
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Ans: option (b)
Explanation: Protista is an organism that contains many kinds of unicellular eukaryotic organisms. Such as algae, diatoms, protozoans etc. This group includes many kinds of unicellular eukaryotic organisms. Some of these organisms use appendages, such as hair-like cilia or whip-like flagella for moving around. Their mode of nutrition can be autotrophic or heterotrophic.
Ques: How do saprotrophs produce their food?
- Using the process of photosynthesis
- By eating plants
- By eating animals
- By using decaying organic material
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Ans: option (d)
Explanation: fungi are heterotrophic eukaryotic organisms. Some of these organisms obtain their food by using decaying organic matter. These types of organisms are called saprotrophs. These mostly we find on the dead vegetables. We also find these type of fungi in our daily life on rotten bread.
Ques: Algae come under which category?
- Monera
- Protista
- Thallophyte
- Bryophyta
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Ans: option (c)
Explanation: organisms which are having no proper or definite shape of the body come under the category of thallophyte. Algae is having no shape for their body thus algae come under thallophyte. The plants in this group are commonly called algae. These plants are predominantly aquatic. Examples are Spirogyra, Ulothrix, Cladophora, Ulva and Chara.
Ques: Warm-blooded animals are called.
- Amphibia
- Aves
- Reptilia
- Pisces
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Ans: option (b)
Explanation: Aves are warm-blooded animals and these have the four-chambered heart. They lay eggs. There is an outside covering of feathers, and two forelimbs are modified for flight. They breathe through the lungs. All birds fall in this category.
Ques: Which of the following is the feature possessed by chordates?
- They are non-symmetrical
- They are unicellular
- They are classified into 4 classes
- They have a notochord
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Ans: option (d)
Explanation: These animals have a true vertebral column and internal skeleton, allowing a completely different distribution of muscle attachment points to be used for movement. Vertebrates are bilaterally symmetrical, triploblastic, coelomic and segmented, with complex differentiation of body tissues and organs. features possessed by the chordates are:
have a notochord
have a dorsal nerve cord
triploblastic
have paired gill pouches
coelomate.
Ques: Holes in pores in Porifera is used for?
- Circulation of water throughout the body
- Circulation of air throughout the body
- Secretion of waste from the body
- For the free movement of the body
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Ans: option (a)
Explanation: pores mean holes. These are non-motile animals attached to some solid support. There are holes or ‘pores’, all over the body. In Porifera holes help in circulating the water throughout its body. Through this, the food and oxygen are transferred to every part of the body. The body design involves very minimal differentiation and division into tissues. They are commonly called sponges and are mainly found in marine habitats.
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