Life Processes - MCQs

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Biology — Life Processes

50 Questions Class 10 MCQs
1
Which of the following is a common passage for both food and air?
2
Which enzyme digests protein in the stomach?
3
Bile is secreted by ______ and stored in ______.
4
Which process converts light energy into chemical energy?
5
Which of the following provides raw materials for photosynthesis?
6
Which is the site of photosynthesis in plants?
7
Autotrophic nutrition involves:
8
Which of the following helps in absorption of digested food in the small intestine?
9
In which part of the alimentary canal is the acidic medium found?
10
The process of breaking food into simple soluble forms is called:
11
Which enzyme is present in saliva?
12
Which of the following organisms shows holozoic nutrition?
13
Guard cells regulate:
14
Which product is formed during photosynthesis?
15
Iodine solution is used to test the presence of:
16
Energy released during cellular respiration is stored in:
17
In anaerobic respiration in yeast, end products are:
18
Which part of the human body is the site for gaseous exchange?
19
The respiratory pigment in humans is:
20
Breathing rate increases when CO? concentration in blood:
21
The process of breakdown of glucose in the absence of oxygen is called:
22
Where does aerobic respiration take place in a cell?
23
The number of ATP molecules produced in aerobic respiration from one glucose molecule is:
24
The dome-shaped muscular structure involved in breathing is:
25
The first step of glucose breakdown occurs in:
26
Which blood vessel carries oxygenated blood from lungs to heart?
27
The normal blood pressure of humans is:
28
Which component of blood helps in clotting?
29
Which plant tissue transports food?
30
Which chamber of the human heart receives deoxygenated blood from the body?
31
The vascular bundles in plants are made up of:
32
Blood cells that fight infections are:
33
Which artery supplies blood to the heart muscles?
34
The upward movement of water in plants is mainly due to:
35
Double circulation in humans means:
36
Which pigment in RBCs carries oxygen?
37
In plants, water is lost through small pores called:
38
Transport of soluble products of photosynthesis is known as:
39
Which chamber of the heart pumps oxygenated blood to the body?
40
In plants, the main force responsible for movement of water is:
41
The functional unit of the kidney is:
42
Which of the following is the main excretory product in humans?
43
In plants, gaseous waste products are removed through:
44
The process of removal of metabolic waste products is known as:
45
Which blood vessel brings blood to the kidney for filtration?
46
Urine is stored in which part of the human body?
47
Which of the following structures in nephron is responsible for filtration of blood?
48
The amount of water reabsorbed by kidneys depends on:
49
Which of the following is not an excretory organ in humans?
50
In plants, excretion of excess water occurs through:
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Frequently Asked Questions

Life processes are essential functions like nutrition, respiration, transportation, and excretion needed for living beings to surviveimage.jpg?learncbse?.

Life processes keep organisms alive by providing nutrients, energy, and waste elimination required for growth and survivalimage.jpg?learncbse+1?.

Nutrition involves acquiring and utilizing food. Plants use autotrophic nutrition, while animals use heterotrophic nutritionlearncbse+1?.

Autotrophs make food using sunlight, water, and CO2. Heterotrophs depend on consuming other living things for foodscribd+2?.

Photosynthesis is the process in which plants convert CO2 and water into carbohydrates using sunlight and chlorophyllimage.jpg?learncbse?.

The stages include ingestion, digestion, absorption, assimilation, and egestionlearncbse+1?.

Respiration releases energy from food. Aerobic uses oxygen, anaerobic does notallen+1?.

Aerobic uses oxygen, yields more energy; anaerobic is without oxygen and yields less energyallen+1?.

Organs like the nose, trachea, lungs, and alveoli help exchange gases and support respirationallen+1?.

Movement of nutrients, gases, and waste—through blood in humans, xylem and phloem in plantsimage.jpg?learncbse?.

Excretion removes metabolic wastes; egestion removes undigested food from the digestive tractlearncbse+1?.

Amoeba uses pseudopodia to engulf food, digests it in vacuoles, absorbs nutrients, and ejects wastelearncbse?.

ATP stores and transfers energy produced during respiration for cellular activitieslearncbse?.

Life processes, nutrition, photosynthesis, respiration, aerobic, anaerobic, transportation, excretion, autotrophic, heterotrophic, ATPimage.jpg?learncbse+2?

Living beings show features like movement, growth, respiration, and other life processes, even if not always visible externally?.

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