Which is the correct sequence of parts in human alimentary canal?

The various organs in sequence of mouth, oesophagus, stomach, small intestine and large intestine and anus. The nutrition in human beings take place through the digestive system, that consists of alimentary canal and associated glands.

Arjun appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

Chloroplast are the organelles in the cells of green plants which contain chlorophyll and where photosynthesis take place. Thus, photosynthesis occurs in the organelles called the chloroplast present in the photosynthetic cell or mesophyll cell of green plants. In the other words, the site of photosynthesis in cell of the leaf are chloroplast. Chloroplast can be seen easily by using a light microscope.

In tissues of human beings, glucose is converted into pyruvic acid in the

The first step is the break-down of glucose, a six-carbon molecule, into a three-carbon molecule called pyruvate. This process takes place in the cytoplasm.

In which of the following groups of organisms, food material is broken down outside the body and absorbed?

Yeast, mushroom, bread mould are saprophytes who break down the food materials outside the body then absorb it.

Select the correct statement from the following.

Heterotrophs do not synthesise their own food. They feed on autotrophs for their nutrition.

Which is the correct sequence of parts in human alimentary canal?

Food comes first in Mouth and then moves through Oesophagus and stomach → small intestine → large intestine.

If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

Starch breaking down into sugars and later on in Stomach it further break down in glucose.

The blood leaving the tissues becomes richer in

The blood leaving the tissues becomes richer in Carbon Dioxide. Because tissues receive the oxygenated blood from arteries and used up the oxygen to take energy and release the carbon dioxide.

Consider the following statements and choose the incorrect one:

Here, all the statements are correct. Hence your answer will be option [D].

Badal appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

Non-living things which are not alive cannot move by themselves. For example, a stone is a non-living thing which cannot move by itself from one place to another or show any other type of movement. We will have to move it by applying force from outside.

Nancy is writing some sentences about living things. Choose the statements which do not shows the characteristics of living things:

Living things can move by themselves. The plants are fixed in the soil at a place so they cannot move like animals from place to place but the plants can only move parts of their body such as leaves, flowers, roots etc.

During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the:

Pyruvic acid is converted into lactic acid in the cytoplasm of muscles cells during deficiency of oxygen in human beings.

Which of the following statement is or are correct?

Here, all the statements are correct. Hence your answer will be option [D].

Which of the following statement(s) is (are) correct?

Fermentation is a form of anaerobic respiration. Pyruvate can be converted into ethanol and CO, in yeast during fermentation. Since this process takes place in the absence of air (oxygen), it is called anaerobic respiration. It takes place in cytoplasm. Break down of pyruvate using oxygen, i.e., aerobic respiration takes place in the mitochondria.

Priya is writing some statements, choose the correct statement and help him:

Here, all the statements are correct. Hence your answer will be option [D].

The internal (cellular) energy reserve in autotrophs is

Using the material in the form of carbon dioxide and water which is converted into carbohydrates in the presence of sunlight and chlorophyll. Carbohydrates are utilised for providing energy to the plant. The carbohydrates which are not used immediately are stored in the form of starch, which serves as the internal energy reserve to be used as and when required by the plant.

Which of the following is an incorrect statement?

Cells generally does not share the transaction of the particles or molecules.

In which part of the alimentary canal food is finally digested?

The digestion of food completed in Small intestine. In large intestine only absorption of water take place. In mouth cavity the digestion starts only. In stomach, the digestion of proteins start in acidic medium with the help of pepsin.

Choose the function of the pancreatic juice from the following

Trypsin digests proteins in basic medium of food (pepsin digest proteins in acidic medium) and lipase emulsified fats.

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

Organisms which can make their own food from carbon dioxide and water are called autotrophs. Carbon dioxide and water are inorganic substance. So, we can say that, those organisms which can make their own food from the inorganic substances present in the environment are called autotrophs. All the green plants are autotrophs.

Choose the forms in which most plants absorb nitrogen:

Nitrogen is an essential element used in the synthesis of proteins and other compounds. This is taken up in the form of inorganic nitrates or nitrites. Sometimes it is taken up as organic compounds i.e., urea, which have been prepared by bacteria from atmospheric nitrogen.

The opening and closing of the stomatal pore depends upon

Large number of tiny pores called stomata are present on the surface of the leaves of plants. The gaseous exchange as well as transpiration takes place through these pores. The opening and closing of the pore is a function of the guard cells. The guard cells swell when water flows into them, causing the stomatal pores to open. Similarly, the pore closes if the guard cells shrink or losses water in them.

Choose the event that does not occur in photosynthesis

Carbon dioxide is used in photosynthesis for the products on of food. The oxidation of carbon compounds occurs in respiration.

Rahul is writing some sentences about the process of photosynthesis. Choose the correct statements which is related to photosynthesis:

Here, all the statements are correct. Hence your answer will be option [D].

Which of the following statement is or are correct?

Here, all the statements are correct. Hence your answer will be option [D].

When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of

Lime water turns milky due to presence of carbon dioxide. The reaction of lime water and carbon dioxide forms calcium carbonate which is insoluble in water and makes lime water milky.

Which of the following statement is true about heart?

Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left, the left atrium. The left atrium relaxes when it is collecting this blood. It then contracts, while the next chamber, the left ventricle, relaxes, so that the blood is transferred to it. When the muscular left ventricle contracts in its turn, the blood is pumped out to the body. De-oxygenated blood comes from the body to the upper chamber on the right, the right atrium, as it relaxes. As the right atrium contracts, the corresponding lower chamber, the right ventricle, dilates. This transfers blood to the right ventricle, which in turn pumps it to the lungs for oxygenation. Since ventricles have to pump blood into various organs, they have thicker muscular walls than the atria do. Valves ensure that blood does not flow backwards when the atria or ventricles contract.

What prevents backflow of blood inside the heart during contraction?

Valves allow the flow of blood in one direction only.

The internal (cellular) energy reserve in autotrophs is

In autotrophs, the cellular energy reserve is starch. However, carbohydrates serve as a major fuel in the cells to provide energy for life processes. The sugar (glucose) produced that is not used immediately gets stored in the form of starch in plants. In animals, food is stored in the form of glycogen. These food reserves provide energy as and when required by the organisms.

Badal appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

Chloroplast are the organelles in the cells of green plants which contain chlorophyll and where photosynthesis take place. Thus, photosynthesis occurs in the organelles called the chloroplast present in the photosynthetic cell or mesophyll cell of green plants. In the other words, the site of photosynthesis in cell of the leaf are chloroplast. Chloroplast can be seen easily by using a light microscope.

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

Here, all the statements are correct. Hence your answer will be option [D].

Read the following sentences carefully, and choose the incorrect one:

Amoeba has no fixed place for removing the undigested part of food. When a considerable amount of undigested food collects inside Amoeba, then its cell membrane suddenly ruptures at any place and the undigested food is thrown out the body of Amoeba.

Urvashi is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Urvashi wants to take help from you:

The oesophagus carries food to the stomach. When the slightly digested food enters the food pipe, the walls of food pipe start contraction and expansion movements. The contraction and expansion movement of the walls of food pipe is called peristaltic movement. This peristaltic movement of food pipe pushes the slightly digested food into the stomach.

Choose the correct statement that describes arteries.

Since the blood emerges from the heart under high pressure, the arteries have thick, elastic walls.

Choose the correct statement that describes arteries.

Arteries are the vessels which carry blood away from the heart to various organs of the body. Since the blood emerges from the heart under high pressure, the arteries have thick, elastic walls. Veins collect the blood from different organs and bring it back to the heart. They do not thick walls because the blood is no longer under pressure, instead they have valves that ensure that the blood flows in only one direction.

Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by

Single circulation is found in fishes. Hippocampus, Exoceotus, Anabas exhibit single circulation of blood because these animals belong to Pisces.

Neha is writing some sentences about living things. Choose the statements which do not shows the characteristics of living things:

Living things can move by themselves. The plants are fixed in the soil at a place so they cannot move like animals from place to place but the plants can only move parts of their body such as leaves, flowers, roots etc.

What prevents backflow of blood inside the heart during contraction?

Valves ensure. that blood does not flow backwards when the atria or ventricles contract. Since ventricles have to pump blood into various organs with high pressure, they have thicker walls than atria. The separation of the right side and left side of heart by valve also helps to keep oxygenated and deoxygenated blood from mixing so as to supply high amount of oxygen to the body.

Vishrut appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

Non-living things which are not alive cannot move by themselves. For example, a stone is a non-living thing which cannot move by itself from one place to another or show any other type of movement. We will have to move it by applying force from outside.

Which of the following statement (s) is (are) true about heart?

Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs. Whereas right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body. Hence, Deoxygenated blood flows through the right side of the heart. Oxygenated blood flows through the left side of the heart.

Read the following sentences carefully, and choose the incorrect one:

Here, all the statements are correct. Hence your answer will be option [D].

During respiration exchange of gases take place in

It is in the alveoli in the lungs where gaseous exchange takes place. The walls of the alveoli are very thin and surrounded by network of very thin blood capillaries. The presence of millions of alveoli in the lungs provides a large area for the exchange of gases.

Class 10 Science Chapter 6 MCQ

Class 10 Science Chapter 6 MCQ (Multiple Choice Questions) test series of Life Processes updated for new academic session 2020-21. These questions are important for CBSE Board examination as it contains important questions from CBSE Sample Papers, Questions from Board Papers also.

After going through the chapter 6 of Class 10 Science, students should practice these questions to cross check there level of preparation for exams. More MCQ Questions will be added as per need of the students.

Class 10 Science Chapter 6 MCQ for 2020-21

Class:	10
Subject:	Science
Contents:	MCQ Tests

Class 10 Science Chapter 6 MCQ Test for Revision

The following test of MCQs contains 10 questions for practice. Considering each questions as of 1 mark, attend the test. If you are getting less than 40 percent marks means, you need to go through NCERT Books once again. Doing more than 6 or more questions correctly is satisfactory.

Which of the following statements about the autotrophs is incorrect?

[A]. They synthesise carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll.

[B]. They store carbohydrates in the form of starch.

[C]. They convert carbon dioxide and water into carbohydrates in the absence of sunlight.

[D]. They constitute the first trophic level in food chains.

Which of the following statement is or are incorrect?

[A]. All the living organisms need energy to perform various life processes.

[B]. Energy is not required by an organism during sleep.

[C]. Food is a kind of will which provides energy to all living organisms.

[D]. Our body gets longest size in in early morning in the bed.

Which part of alimentary canal receives bile from the liver?

[A]. Stomach

[B]. Small intestine

[C]. Large intestine

[D]. Oesophagus

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

[A]. complex proteins.

[B]. simple proteins.

[C]. fats.

[D]. starch.

Consider the following statements and choose the correct one:

[A]. Those animals which eat only plants are called Herbivores.

[B]. Those animals which eat only other animals as food are called Carnivores.

[C]. Those animals which eat both, plants and animals are called Omnivores

[D]. All the above.

The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

[A]. Pepsin

[B]. Mucus

[C]. Salivary amylase

[D]. Bile

In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?

[A]. Pisces and amphibians.

[B]. Amphibians and reptiles.

[C]. Amphibians only.

[D]. Pisces only.

Oxygen liberated during photosynthesis comes from

[A]. Water

[B]. Chlorophyll

[C]. Carbon dioxide

[D]. Glucose

Which is the first enzyme to mix with food in the digestive tract?

[A]. Pepsin

[B]. Cellulase

[C]. Amylase

[D]. Trypsin

View Answer

Q10

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:

[A]. Complex proteins

[B]. Simple proteins

[C]. Fats

[D]. Starch

View Answer

Start a New Test

Class 10 Science Chapter 6 MCQ Tests

Class 10 Science Chapter 6 MCQ Tests are given for the practice of topic LIFE PROCESSES. The questions are picked up from NCERT Books, Some popular publisher’s books and NCERT Exemplar Problems books. These are a complete sets of questions for knowledge testing as well as preparation of CBSE Board Exams.

Are MCQs important for class 10 Board exams?

From 2019-20, MCQs are compulsory in board exams. There will be 20 marks for very short questions including MCQ, Fill in the blanks, etc.

Is the explanation of MCQ required in Board Exams for full score?

You may give only the correct option as answer but if you know the correct explanation, please give in brief.

What are the maximum number of MCQs in Class 10 Science Boards?

There may be maximum of 20 MCQs in Class 10 Science Examination.

What are the marks of each MCQ?

Generally, each MCQ consists of 1 mark only.

Download NCERT Books and Offline Apps 2020-21 based on new CBSE Syllabus. Ask your doubts related to NIOS or CBSE Board and share your knowledge with your friends and other users through Discussion Forum.

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Class 10 Science Chapter 6 MCQ

Class 10 Science Chapter 6 MCQ for 2020-21

Class 10 Science Chapter 6 MCQ Test for Revision

Which of the following statements about the autotrophs is incorrect?

Which of the following statement is or are incorrect?

Which part of alimentary canal receives bile from the liver?

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

Consider the following statements and choose the correct one:

The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?

Oxygen liberated during photosynthesis comes from

Which is the first enzyme to mix with food in the digestive tract?

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:

Class 10 Science Chapter 6 MCQ Tests

Are MCQs important for class 10 Board exams?

Is the explanation of MCQ required in Board Exams for full score?

What are the maximum number of MCQs in Class 10 Science Boards?

What are the marks of each MCQ?

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Class 10 Science Chapter 6 MCQ

Class 10 Science Chapter 6 MCQ for 2020-21

Class 10 Science Chapter 6 MCQ Test for Revision

Which of the following statements about the autotrophs is incorrect?

Which of the following statement is or are incorrect?

Which part of alimentary canal receives bile from the liver?

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

Consider the following statements and choose the correct one:

The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?

Oxygen liberated during photosynthesis comes from

Which is the first enzyme to mix with food in the digestive tract?

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:

Class 10 Science Chapter 6 MCQ Tests

Are MCQs important for class 10 Board exams?

Is the explanation of MCQ required in Board Exams for full score?

What are the maximum number of MCQs in Class 10 Science Boards?

What are the marks of each MCQ?

NCERT Solutions

High School

Quick Links

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