Life Processes Class 10 MCQ with Answers pdf Download

During respiration exchange of gases take place in

Blood from superior vena cava flows into

Name the substances whose build-up in the muscles during vigorous physical exercise may cause cramps?

Blood consist of what fluid medium?

The green colour of plants is due to the presence of

Lipase acts on

The internal (cellular) energy reserve in autotrophs is

Choose the correct path of urine in our body.

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

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

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

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

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

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

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

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

Which of the following organisms absorbs nutrition with haustoria?

Rings of cartilage present in the throat ensure that

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

The opening and closing of the stomatal pore depends upon

Lack of oxygen in muscles often leads to cramps among cricketers. This result is due to

Raw materials required in the autotrophic mode of nutrition involves:
(i) Carbon dioxide and water (ii) Chlorophyll (iii) Nitrogen (iv) Sunlight

Among the following choose the correct option which includes the organisms that have a holozoic mode of nutrition:

The enzymes pepsin and trypsin are secreted respectively by

Which of the following is not a digestive enzyme contained in the pancreatic juice?
(i) Lipase (ii) Hydrochloric acid (iii) Mucus (iv) Trypsin

The process by which Amoeba obtains food is called

Movement of the synthesized products from the leaves to the roots and other parts of a plant’s body takes place through the phloem. This process is known as

The vein which brings clean blood from the lungs into the heart is known as

Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of

Which of the following help in protecting the inner lining of the stomach from the harmful effect of hydrochloric acid?

The enzymes in pancreatic juice help in the digestion of

Temporary finger-like extensions on Amoeba are called

Plants use the energy stored in ATP to accomplish the process of transportation of

The excretory unit of the human excretory system is known as

Which among the following procedures is used for cleaning the blood of a person by separating the waste substance from it?

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

The site of photosynthesis in the cells of a leaf is

Roots of the plants absorb water from the soil through the process of

The mode of nutrition found in fungi is

In which mode of nutrition does an organism derive its food from the body of another living organism without killing it?

Which among the following is necessary to carry out the blood coagulation in a cut or wound?

What are the products obtained by anaerobic respiration in plants?

The exit of unabsorbed food material is regulated by

The contraction and expansion movement of the walls of the food pipe is called

Which region of the alimentary canal absorbs the digested food?

In Amoeba, food is digested in the

The respiratory pigment in human beings is

Name the pores in a leaf through which respiratory exchange of gases takes place

The glycolysis process occurs in which part of the cell?

The breakdown of pyruvate to give carbon dioxide, water and energy takes place in