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.

Which of the following statements about the autotrophs is incorrect?

Because autotrophs convert carbon dioxide and water into carbohydrates in the PRESENCE of sunlight.

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.

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.

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.

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 is or are incorrect?

Energy is required by an organism even during sleep because when we are asleep a number of biological processes keep on occurring in the body which require energy. Our heart beats non-stop even when we are asleep to pump blood throughout the body. And this beating of heart requires energy. Thus, the working of heart requires are continuous supply of energy.

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.

Which part of alimentary canal receives bile from the liver?

The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives Bile juice, the secretions of the liver and also pancreatic juice from pancreas for this purpose.

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

The solution turned blue-black in colour just because of starch.

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.

Consider the following statements and choose the correct one:

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

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.

Consider the following statements and choose the correct one:

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

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].

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.

Which part of alimentary canal receives bile from the liver?

Small intestine receives bile from the liver which is normally stored in the gall bladder. It performs two functions i.e. makes the food alkaline and break the fats present in food into small globules by the process of emulsification.

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

Pisces have only two chambers to their hearts, and the blood is pumped to the gills, is oxygenated there, and passes directly to the rest of the body. Thus, blood goes only once through the heart in the fish during one cycle of passage through the body.

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.

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

In Pisces (fishes), the heart is 2 chambered oral pumps deoxygenated blood to the gills, where oxygenation takes place by diffusion. The oxygenated blood from the gills is supplied to the body parts where oxygen is utilised and CO2 enters it making the blood deoxygenated. This deoxygenated blood returns to the heart. Thus, it has single circulation, i.e., blood passes through the heart only once during one complete cycle.

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.

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.

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.

Select the correct statement from the following.

[A]. Heterotrophs do not synthesise their own food.

[B]. Heterotrophs utilise solar energy for photosynthesis.

[C]. Heterotrophs synthesise their own food.

[D]. Heterotrophs are capable of converting carbon dioxide and water into carbohydrates.

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

[A]. Pyruvate can be converted into ethanol and carbon dioxide by yeast, and Fermentation takes place in mitochondria.

[B]. Fermentation takes place in aerobic bacteria, and Fermentation is a form of anaerobic respiration.

[C]. Pyruvate can be converted into ethanol and carbon dioxide by yeast, and Fermentation is a form of anaerobic respiration.

[D]. Fermentation takes place in aerobic bacteria, and Fermentation takes place in mitochondria.

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

[A]. Stomach.

[B]. Mouth cavity.

[C]. Large intestine.

[D]. Small intestine.

Choose the forms in which most plants absorb nitrogen:

[A]. Proteins, and Nitrates and Nitrites

[B]. Nitrates and Nitrites, and Urea

[C]. Urea, and Atmospheric nitrogen

[D]. Proteins, and Atmospheric nitrogen

Which is the correct sequence of air passage during inhalation?

[A]. Nostrils → larynx → pharynx → trachea → lungs

[B]. Nasal passage → trachea → pharynx → larynx → alveoli

[C]. Larynx → nostrils → pharynx → lungs

[D]. Nostrils → pharynx → larynx → trachea → alveoli

The blood leaving the tissues becomes richer in

[A]. Carbon dioxide

[B]. Water

[C]. Haemoglobin

[D]. Oxygen

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

[A]. Living things need air and water.

[B]. Living things can respond to changes around them.

[C]. Living things respire or release energy from food.

[D]. Living things cannot move by themselves, such as plant.

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

[A]. Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs.

[B]. Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs.

[C]. Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs, and Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body.

[D]. Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs, and Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts.

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

[A]. Pepsin

[B]. Cellulase

[C]. Amylase

[D]. Trypsin

View Answer

Q10

Read the following sentences carefully, and choose the incorrect one(s):

[A]. The maximum pressure at which the blood leaves the heart through the main artery during contraction phase is called the systolic pressure.

[B]. The minimum pressure in the arteries during the relaxation phase of heart is called the diastolic pressure.

[C]. Blood pressure is measured by using an instrument called sphygmomanometer.

[D]. The normal blood pressure usually written as 80 upon 120

View Answer

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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

Select the correct statement from the following.

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

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

Choose the forms in which most plants absorb nitrogen:

Which is the correct sequence of air passage during inhalation?

The blood leaving the tissues becomes richer in

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

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

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

Read the following sentences carefully, and choose the incorrect one(s):

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

Select the correct statement from the following.

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

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

Choose the forms in which most plants absorb nitrogen:

Which is the correct sequence of air passage during inhalation?

The blood leaving the tissues becomes richer in

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

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

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

Read the following sentences carefully, and choose the incorrect one(s):

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

Help & Support