Question:
In humans, digestion starts with which organ?
In humans, digestion starts with which organ?
Show Hint
The mouth plays a critical role in digestion by starting the breakdown of carbohydrates and preparing food for further digestion in the stomach and intestines.
Updated On: Nov 5, 2025
- From mouth
- From liver
- From small intestine
- From gall bladder
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Digestion in humans begins in the mouth where food is mechanically broken down by chewing and mixed with saliva, which contains enzymes like amylase that start the process of carbohydrate digestion.
Was this answer helpful?
0
0
Top Questions on Biology
- Given below is a pyramid showing various trophic levels in an ecosystem:
Deer, Grass, Lion, Snake, Rabbit
(b) Discuss the reason why primary consumers will have more energy as compared to secondary consumers?
(c) Why is the base of the pyramid broad? - Which of the following is an excretory organ of the human body?
- Which of the following is a mechanism of human breathing ?
- ______ has a bean seed like shape
- What is secreted from salivary glands ?
View More Questions
Questions Asked in UP Board X exam
- The angles of depression of the top and the bottom of a 6 m high building from the top of a multi-storeyed building are 30° and 60° respectively. Find the height of the multi-storeyed building and the distance between the two buildings.
OR
Two poles of equal heights are standing opposite each other on either side of the road, which is 60 m wide. From a point between them on the road, the angles of elevation of the top of the poles are 30° and 60°, respectively. Find the height of the poles and the distances of the point from the poles.
- UP Board X - 2026
- Trigonometry
- A chord of a circle of radius 14 cm subtends an angle of 60° at the centre. Find the areas of the corresponding minor and major segments of the circle.
OR
A solid is in the shape of a cone standing on a right circular cylinder with both their radii being equal to 7.5 cm and the height of the cone is equal to its radius. If the total height of the solid is 22.5 cm, find the volume of the solid. (Use $\pi = 3.14$, $\sqrt{3} = 1.732$)
- The altitude of a right triangle is 35 cm less than its base. If the hypotenuse is 65 cm, find the other two sides.
- UP Board X - 2026
- Triangles
- The sum of a two-digit number and the number obtained by reversing the digits is 110. If the tens digit of the number is 6 more than the units digit, then find the number.
- UP Board X - 2026
- Linear Equations
- Solve the following pairs of linear equations : $3x - 5y = 4$, $9x = 2y + 7$
- UP Board X - 2026
- Linear Equations
View More Questions