Life Processes Class 10 MCQ Quiz – Test Your Knowledge!

In the given transverse section of the leaf identify the layer of cells where maximum photosynthesis occurs.

Which of the following statement(s) is(are) true about excretion in human beings?

1. Urine is stored in the urethra until the urge of passing it out.
2. Each kidney has large numbers of filtration units called nephrons.
3. The bladder is muscular, so it is under nervous control.
4. Kidneys are the primary excretory organs.

The characteristic processes observed in anaerobic respiration are:

1. Presence of oxygen
2. Release of carbon dioxide
3. Release of energy
4. Release of lactic acid

Identify the phase of circulation which is represented in the diagram of the heart given below. Arrows indicate the contraction of the chambers shown.

The doctor measured Ravi’s blood pressure and said it is normal now. The range of Ravi’s blood pressure (systolic/diastolic) is likely to be:

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

Opening and closing of stomatal pore depend on:

Study the picture given above and choose the correct combination of plots provided in the following table:

Study the table below and select the row that has the incorrect information.

Observe the diagram of the human digestive system.

Match the labeling referred to in column I and correlate it with the function in column II.

Study the graph below that represents the blood test reports of an athlete just before and after a race.

Choose the correct combination of plots provided in the following table.

Generally food is broken and absorbed within the body of organisms. In which of the following organisms is it done outside the body?

The figure given below shows a schematic plan of blood circulation in humans with labels (i) to (iv). Identify the correct label with its functions.

Identify the option that indicates the correct enzyme that is secreted in locations A, B,  and C.

The figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are airtight and have been kept in light for 6 hours. Then, the Iodine test is performed with one leaf from each of the two plants X and Y.

Which of the following steps can be followed for making the apparatus airtight?

1. Placing the plants on a glass plate
2. Using a suction pump
3. Applying vaseline to seal the bottom of the jar
4. Creating a vacuum