MCQ questions for class 10 science biology life processes

When air is blown through lime water it turns milky because of ____.

Write the correct sequence of air passage involved in inhalation?

The breakdown of pyruvate into carbon dioxide, energy, and water takes place in ____.

The autotrophs require ____.

The cellular energy reserves in autotrophs are____.

Which is the first enzyme that mixes with food?

Where are proteins first digested?

Which of the following components of food is digested by s. amylase?

Which of the statements is correct regarding bile?

In the human digestion system, the enzymes pepsin and trypsin are secreted by?

The kidneys in human beings are part of ____.

The pancreas pours their secretion into ___.

The pancreatic juice doesn’t contain the following enzymes

The correct sequence of anaerobic respiration

During respiration exchange of gases take place in

Identify the correct path of urine in the human body.

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

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

Which of the following is incorrectly spelled?

The internal (cellular) energy reserve in autotrophs is