Kingdom Classification Class-7th Goyal Brothers Prakashan Biology Solutions
Kingdom Classification Class-7th Goyal Brothers ICSE Biology Solutions Chapter-1 Kingdom Classification. We Provide Step by Step Answers of Objectives, Fill in the blanks , Definitions , Match the followings and Short/Long Question Type answers of Chapter-2, Unit 1, Kingdom Classification. Visit official Website CISCE for detail information about ICSE Board Class-7.
Kingdom Classification ICSE Class-7th
Goyal Brothers Biology Solutions Chapter-2, Unit-1
|Book Name||Goyal Brothers|
|Topic||Solution of exercise questions|
Kingdom Classification ICSE Class-7th Goyal Brothers
I. Multiple Choice Questions. Tick(√ ) the correct choice.
1. The lowest category in classification is called
Ans: (a) Species
2. According to five-kingdom classification, the kingdoms are (in proper sequence) :
(a) Protista, Monera, Plantae, Fungi, Animalia
(b) Monera, Protista, Fungi, Plantae, Animalia
(c) Monera, Fungi, Protista, Plantae, Animalia
Ans: (b) Monera, Protista, Fungi, Plantae, Animalia
3.What is the name of the kingdom that contains single-class eukaryotes?
Ans: (d) Protista
II. Read the following statements. Write true (T) or false (F) against each of these statements :
- Fungi do not contain chlorophyll. [T]
- Plants contain chlorophyll. [T]
- Kingdom Monera contains prokaryotic organisms. [T]
- Yeast lacks chlorophyll. [T]
- Reserve food material in fungi is starch. [F]
- Rod-shaped bacteria are called cocci. [F]
- Protozoans are eukaryotic organisms. [T]
III. Select the odd-one out in each of the following combinations. Give reasons in support your answer :
1. Yeast, Protozoa, Mushroom
Reason: Others belong to the same kingdom (fungi).
2. Moulds, Bacteria, Mushroom
Reason: Bacteria is the odd one because it is not under fungi group but moulds and mushroom are fungi.
3. Bacteria, Blue-green algae, Protozoa
Reason: Protozoa is odd one Because it does not comes in the category of bacteria.
4. Green algae, Brown algae, Blue-green algae
Reason: Others are prokaryotic.
IV. Name two organisms kept under the following kingdoms:
- Monera: Blue-green algae and bacteria.
- Protista: Amoeba, slime molds
- Fungi: Yeasts, and mushrooms
- Plantae: Brown and red algae
- Animalia: Sponges and hydra
V. Distinguish between the following:
1. Monera and Protista
|1. The cell wall is not well-defined.||1. The cell wall is present and well-defined.|
|2. Cellular respiration occurs aerobically or through fermentation.||2. Cellular respiration occurs aerobically.|
|3. Smaller in size
Example: Bacillus, mycobacteria
|3. Relatively larger in size
Example: Red algae, green algae
2. Protista and Fungi
|1. Protists are single-celled organisms||1. Fungi are multicellular organisms|
|2. Types-Algae, molds, Protozoans||2. Types-Seven phyla of fungi|
|3. Invisible to the naked eye
Example: Amoeba, slime moulds
|3. Visible to the naked eye
Example: Yeast, Mushroom
3. Plantae and Animalia
|1. These do not show locomotion||1. They show locomotion|
|2. Plants cells have a cell wall||2. Animal cells lack a cell wall|
|3. They grow throughout their lifespan||3. These can grow up to a particular age only|
VI. Match the items in column A with those in column B :
|Column A||Column B|
|(a) Bacterium||(1) A plant formed by algae and fungi|
|(b) Fungus||(2) One-celled prokaryotic organism|
|(c)Lichen||(3) Green autotrophic plants|
|(d) Algae||(4) A plant with nuclei but no chlorophyll|
|Column A||Column B|
|(a) Bacterium||(2) One-celled prokaryotic organism|
|(b) Fungus||(4) A plant with nuclei but no chlorophyll|
|(c) Lichen||(1) A plant formed by algae and fungi|
|(d) Algae||(3) Green autotrophic plants|
VI. Answer the following questions :
Question 1 :- Why has Euglena been classified as a plant as well as an animal?
Answer: Euglena is a claimed to classified as a plant as well as an animal because it contains chloroplasts and obtains its food through photosynthesis.
Question 2 :- Who proposed the five kingdom classification ?
Answer: Robert Whittaker proposed the five kingdom classification of organisms.
Question 3 :- Name the five kingdom proposed in the five kingdom classification
Answer: Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.
Question 4 :- Which of the following groups of organisms contain chlorophyll?
(e) Flowering Plants
Answer: (c) Algae,(d) Mosses,(e) Flowering Plants
Question 5 :- Give the important features of following kingdoms:
(a) Monera: They contain 70S ribosomes. The DNA is naked and is not bound by a nuclear membrane.
(b) Fungi: Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous.
(c) Protista: They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
(d) Plantae: Plants contain photosynthetic pigments called chlorophyll present in the plastids. These are multicellular eukaryotes.They make their own food and hence are called autotrophs
Question 6 :- Give the harmful and useful effects of fungi.
Answer: The harmful effect of fungi are that Some fungus can cause various plant diseases like red rot of sugarcane and powdery mildew in peas and Growth of fungus in food items can spoil the food.
The useful effect of fungi are that they have the ability to transform nutrients in a way that makes them available for plants. Some fungi are decomposers which mean that they break down plant and animal debris, thus cycling nutrient and increasing their availability in the soil
Question 7 :- List three harmful and three useful effects of bacteria.
Answer: There are number of bacteria that causes various diseases to living organisms, such bacteria are referred to as harmful bacteria. diseases such as cholera, typhoid, pneumonia and tuberculosis etc. in human beings are caused by bacteria.
Some bacteria that are used as probiotics, or those living in human gut are useful bacteria. such as E coli, Streptomyces, lactobacillus etc. out of these E coli helps in the food digestion. lactobacillus is found in curd, and can ferment milk into cheese and yoghurt.
Question 8 :- Which bacteria help in curd making?
Answer: Lactobacillus bacteria are helpful in a formation of curd.
Question 9 :- Name a unicellular fungus.
Answer: The only unicellular fungi is Yeast.
Question 10 :- Define antibiotics.
Answer: Antibiotics are medicines that fight infections caused by bacteria in humans and animals by either killing the bacteria or making it difficult for the bacteria to grow and multiply.
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