UPSC Exam > UPSC Questions > Regarding amoeba, consider the following ass...
Start Learning for Free
Regarding amoeba, consider the following assertions:
1. It is a microscopic single-celled organism found in pond water.
2. Amoeba constantly changes its shape and position.
3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.
Which of the above assertions is/are correct?
- a)1 and 2 Only
- b)2 and 3 Only
- c)3 Only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Regarding amoeba, consider the following assertions:1. It is a micros...
Answer:
The given question is about the assertions regarding amoeba, a microscopic single-celled organism found in pond water. We need to determine which of the given assertions are correct.
Assertion 1: It is a microscopic single-celled organism found in pond water.
Assertion 2: Amoeba constantly changes its shape and position.
Assertion 3: Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.
Assertion 1: It is a microscopic single-celled organism found in pond water.
This assertion is correct. Amoeba is a microscopic organism that belongs to the kingdom Protista. It is commonly found in freshwater environments such as ponds and lakes. Amoeba is an example of a unicellular organism, meaning it is composed of a single cell.
Assertion 2: Amoeba constantly changes its shape and position.
This assertion is correct. Amoeba exhibits a unique characteristic known as amoeboid movement. It constantly changes its shape and position by extending and retracting its pseudopodia, which are temporary projections of the cell membrane. This allows amoeba to move and capture food particles.
Assertion 3: Amoeba has a cell membrane, a rounded, dense nucleus, and many small bubble-like vacuoles in its cytoplasm.
This assertion is correct. Amoeba has a cell membrane that surrounds and protects its cytoplasm and organelles. It also has a rounded, dense nucleus that contains genetic material. Additionally, amoeba contains many small bubble-like vacuoles in its cytoplasm. These vacuoles serve various functions such as storage of food and waste materials.
Therefore, all of the given assertions (1, 2, and 3) are correct. Amoeba is a microscopic single-celled organism found in pond water. It constantly changes its shape and position through amoeboid movement. It has a cell membrane, a rounded, dense nucleus, and many small bubble-like vacuoles in its cytoplasm.
Introduction
The given question is about the assertions regarding amoeba, a microscopic single-celled organism found in pond water. We need to determine which of the given assertions are correct.
Correct Assertions
Assertion 1: It is a microscopic single-celled organism found in pond water.
Assertion 2: Amoeba constantly changes its shape and position.
Assertion 3: Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.
Explanation
Assertion 1: It is a microscopic single-celled organism found in pond water.
This assertion is correct. Amoeba is a microscopic organism that belongs to the kingdom Protista. It is commonly found in freshwater environments such as ponds and lakes. Amoeba is an example of a unicellular organism, meaning it is composed of a single cell.
Assertion 2: Amoeba constantly changes its shape and position.
This assertion is correct. Amoeba exhibits a unique characteristic known as amoeboid movement. It constantly changes its shape and position by extending and retracting its pseudopodia, which are temporary projections of the cell membrane. This allows amoeba to move and capture food particles.
Assertion 3: Amoeba has a cell membrane, a rounded, dense nucleus, and many small bubble-like vacuoles in its cytoplasm.
This assertion is correct. Amoeba has a cell membrane that surrounds and protects its cytoplasm and organelles. It also has a rounded, dense nucleus that contains genetic material. Additionally, amoeba contains many small bubble-like vacuoles in its cytoplasm. These vacuoles serve various functions such as storage of food and waste materials.
Therefore, all of the given assertions (1, 2, and 3) are correct. Amoeba is a microscopic single-celled organism found in pond water. It constantly changes its shape and position through amoeboid movement. It has a cell membrane, a rounded, dense nucleus, and many small bubble-like vacuoles in its cytoplasm.
Free Test
FREE
| Start Free Test |
Community Answer
Regarding amoeba, consider the following assertions:1. It is a micros...
- It is the microscopic unicellular organism found in pond water which keeps changing its shape and position constantly. It has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.
- The amoeba is a tiny, one-celled organism. You need a microscope to see most amoebas – the largest are only about 1 mm across. Amoebas live in freshwater (like puddles and ponds), in salt water, in wet soil, and in animals (including people). There are many different types of amoebas.
- The name amoeba comes from the Greek word amoibe, which means change. (Amoeba is sometimes spelled ameba.)1. Cell membrane – the thin layer of protein and fat that surrounds the amoeba; it allows some substances to pass into the cell, and blocks other substances.2. Contractile vacuole – a cavity within the amoeba that excretes excess water and waste; the waste is brought to the cell membrane and is then eliminated from the amoeba.3. Cytoplasm (ectoplasm and endoplasm) – a jelly-like material that fills most of the cell; the organelles (like the nucleus) are surrounded by cytoplasm.4. Food vacuole – a cavity within the amoeba in which food is digested (broken down in order to be absorbed by the amoeba).5. Nucleus – the major organelle of the amoeba, located centrally; it controls reproduction (it contains the chromosomes) and many other important functions (including eating and growth).6. Pseudopods – temporary “feet'' that the amoeba uses to move around and to engulf food. An amoeba consists of a single blobby cell surrounded by a porous cell membrane.The amoeba “breathes” using this membrane – oxygen gas from the water passes into the amoeba through the cell membrane and carbon dioxide gas leaves through it. A complex, jelly-like series of folded membranes called cytoplasm fills most of the cell. A large, disk-shaped nucleus within the amoeba controls the growth and reproduction of the amoeba.
|
Explore Courses for UPSC exam
|
|
Similar UPSC Doubts
Top Courses for UPSCView all
Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
Question Description
Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
Solutions for Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Regarding amoeba, consider the following assertions:1. It is a microscopic single-celled organism found in pond water.2. Amoeba constantly changes its shape and position.3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm.Which of the above assertions is/are correct?a) 1 and 2 Onlyb) 2 and 3 Onlyc) 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup