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Lakhmir Singh & Manjit Kaur Test: Life Processes - Class 10 MCQ


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20 Questions MCQ Test Online MCQ Tests for Class 10 - Lakhmir Singh & Manjit Kaur Test: Life Processes

Lakhmir Singh & Manjit Kaur Test: Life Processes for Class 10 2024 is part of Online MCQ Tests for Class 10 preparation. The Lakhmir Singh & Manjit Kaur Test: Life Processes questions and answers have been prepared according to the Class 10 exam syllabus.The Lakhmir Singh & Manjit Kaur Test: Life Processes MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Lakhmir Singh & Manjit Kaur Test: Life Processes below.
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Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 1

In which part of human digestive tract common bile duct opens ?

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 1

Duodenum is first part of small intestine where common bile duct opens.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 2

Which of the following statements is not correct?

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 2

Kidney doesn't have any nephridia but have 1 million nephron .The functional unit of kidney is nephron.

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Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 3

Which of the following protects inner lining of stomach from hydrochloric acid secreted by gastric glands ?

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 3

Mucus is secreted by cells of gastric gland which forms a slimy layer over inner wall of stomach.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 4

Blood pressure is measured by an instrument called

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 4

A sphygmomanometer is a device that measures blood pressure. It is composes of an inflatable rubber cuff, which is wrapped around the arm. When the cuff's pressure equals the arterial systolic pressure, blood begins to flow past the cuff, creating blood flow turbulence and audible sounds.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 5

When few drops of iodine were poured on a potato slice, the potato turned blue-black in colour. This indicates that potato contains

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 5

Starch test is done by iodine solution which turns colour of starch, blue-black. 

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 6

Normal blood pressure (systolic/diastolic) is

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 6

A blood pressure reading has a top number (systolic) and bottom number (diastolic). Normal blood pressure is less than 120 over 80 (120/80).

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 7

Salivary amylase secreted by salivary glands is responsible for which event in mouth?

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 7

Salivary amylase converts starch into sugar. Proteins are digested by pepsin and trypsin while fats are digested by lipase.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 8

In a closed circulatory system, blood is completely enclosed within

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 8

The closed circulatory system is where the blood flows into specialized blood vessels such as arteries, veins, and capillaries. In the closed circulatory system, the blood never comes out in direct contact with the tissues. For example, human being, dogs, rat.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 9

In which part of the alimentary canal complete digestion and absorption of food takes place ?

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 9

Complete digestion and absorption of food takes place in small intestine. Villi present on the surface of inner lining of small intestine increase the absorptive surface.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 10

The process in which loss of water takes place in the form of water vapour through stomata is called

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 10

Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 11

In our body during the process of respiration exchange of gases takes place in

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 11

Exchange of gases takes place in alveolus of lungs as they are richly supplied with blood capillaries.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 12

A biochemical compound that readily combines with oxygen and distributes it throughout the human body is

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 12

Haemoglobin (Hb)
Hb found in Red Blood Cells (RBCs) combines with Dioxygen (O2) to form Oxyhaemoglobin, which is transported throughout the body by Blood. A Hb molecule can hold 4 oxygen molecules. When this complex comes to its destination (any cell), it is broken into former forms of Hb and Dioxygen.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 13

First step in photosynthesis is

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 13

First step of photosynthesis is absorption of light energy by chlorophyll followed by breakdown of water and release of O2.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 14

In respiration, air passes through

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 14

The respiratory route air passes through is: Nostrils → nasal cavity →Pharynx → Larynx →Trachea → Bronchi (with cartilaginous rings) →Bronchioles (without rings)

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 15

Which of the following statement(s) is (are) true about respiration ?
(i) During exhalation, ribs move inwards and diaphragm is lowered.
(ii) Exchange of gases takes place in alveoli.
(iii) During inhalation, ribs move outwards and diaphragm is lowered.
(iv) Haemoglobin has greater affinity for carbon dioxide.

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 15

During inhalation, diaphragm is lowered and ribs move outward resulting in increased volume of lungs so air rushes in. Exchange of gases occur in alveoli.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 16

A large quantity of one of the following is removed from our body by lungs:

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 16

CO2 will be pushed out from our lungs and it passes through our nose and while we exhale it comes out so CO2 is out.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 17

Backflow of blood inside the heart is prevented during contraction by

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 17

Function of valves in circulatory system is to prevent backflow of blood.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 18

The fermentation of glucose by yeast normally yields

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 18

Yeasts break glucose down and produce alcohol and carbon dioxide as their by-products. In yeast fermentation of different foods and beverages, only two parts of ATP is commonly released

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 19

Extra cellular fluid in our tissues is also known as

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 19

Extra cellular fluid is present in between cells of tissues and is also known as tissue fluid or lymph.

Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 20

The part of the digestive system where no digestion takes place is

Detailed Solution for Lakhmir Singh & Manjit Kaur Test: Life Processes - Question 20

Oesophagus

It is a muscular tube that moves the partially digested food from mouth to stomach for further digestion. Hence, the Oesophagus is one part of the digestive system where no digestion occurs.

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