ANSWER: [C] Explanation: Saliva contains the enzyme salivary amylase (ptyalin), which helps in the breakdown of starch into simple sugars (maltose). If saliva secretion is reduced, this conversion is affected. Proteins are digested in the stomach by pepsin, fats are broken down in the small intestinRead more
ANSWER: [C]
Explanation: Saliva contains the enzyme salivary amylase (ptyalin), which helps in the breakdown of starch into simple sugars (maltose). If saliva secretion is reduced, this conversion is affected. Proteins are digested in the stomach by pepsin, fats are broken down in the small intestine by lipase, and sugars into alcohol occurs by fermentation in yeast, not in humans.
ANSWER: Secretion of less saliva in the mouth will mainly affect the conversion of starch into simple sugars. Saliva contains the enzyme salivary amylase (ptyalin), which breaks down starch into maltose and other simple sugars during chewing. If saliva production is reduced, this enzymatic action slRead more
ANSWER: Secretion of less saliva in the mouth will mainly affect the conversion of starch into simple sugars. Saliva contains the enzyme salivary amylase (ptyalin), which breaks down starch into maltose and other simple sugars during chewing. If saliva production is reduced, this enzymatic action slows down, leading to incomplete digestion of starch in the mouth. Proteins, fats, and sugars are digested in later parts of the alimentary canal, so their conversion is not significantly affected by saliva deficiency. Answer: (C).
ANSWER: [B] Explanation: The cerebellum is the part of the hindbrain that controls posture, balance, and coordination of voluntary movements like walking or picking objects. Reflex actions & impulse transmission → spinal cord and neurons. Blood pressure, breathing, heartbeat, swallowing → medullRead more
ANSWER: [B]
Explanation: The cerebellum is the part of the hindbrain that controls posture, balance, and coordination of voluntary movements like walking or picking objects.
Reflex actions & impulse transmission → spinal cord and neurons.
To make my bamboo pen stand, I cut a piece of bamboo culm using a hacksaw. I then fixed it in a bench vice and sanded the rough outer surface until smooth. The top edges were trimmed neatly. Finally, I applied varnish to protect and decorate it. The tools I used included a hacksaw, sandpaper, measurRead more
To make my bamboo pen stand, I cut a piece of bamboo culm using a hacksaw. I then fixed it in a bench vice and sanded the rough outer surface until smooth. The top edges were trimmed neatly. Finally, I applied varnish to protect and decorate it. The tools I used included a hacksaw, sandpaper, measuring tape, bench vice and brush. This process gave me a polished and useful product.
In this section, two example projects are highlighted: Working with Wood and Bamboo and Home Automation. Both projects aim to teach students practical skills in designing, building and maintaining useful products. Learners are free to choose either of these or design their own creative project, withRead more
In this section, two example projects are highlighted: Working with Wood and Bamboo and Home Automation. Both projects aim to teach students practical skills in designing, building and maintaining useful products. Learners are free to choose either of these or design their own creative project, with proper guidance from teachers. This flexibility allows students to explore their interests and develop vocational knowledge in real-life problem-solving.
Secretion of less saliva in mouth will affect the conversion of:
ANSWER: [C] Explanation: Saliva contains the enzyme salivary amylase (ptyalin), which helps in the breakdown of starch into simple sugars (maltose). If saliva secretion is reduced, this conversion is affected. Proteins are digested in the stomach by pepsin, fats are broken down in the small intestinRead more
ANSWER: [C]
Explanation: Saliva contains the enzyme salivary amylase (ptyalin), which helps in the breakdown of starch into simple sugars (maltose). If saliva secretion is reduced, this conversion is affected. Proteins are digested in the stomach by pepsin, fats are broken down in the small intestine by lipase, and sugars into alcohol occurs by fermentation in yeast, not in humans.
See lessSecretion of less saliva in mouth will affect the conversion of:
ANSWER: Secretion of less saliva in the mouth will mainly affect the conversion of starch into simple sugars. Saliva contains the enzyme salivary amylase (ptyalin), which breaks down starch into maltose and other simple sugars during chewing. If saliva production is reduced, this enzymatic action slRead more
ANSWER: Secretion of less saliva in the mouth will mainly affect the conversion of starch into simple sugars. Saliva contains the enzyme salivary amylase (ptyalin), which breaks down starch into maltose and other simple sugars during chewing. If saliva production is reduced, this enzymatic action slows down, leading to incomplete digestion of starch in the mouth. Proteins, fats, and sugars are digested in later parts of the alimentary canal, so their conversion is not significantly affected by saliva deficiency. Answer: (C).
See lessSelect the group in which all functions are controlled by the cerebellum: (A) reflex action, transmission of impulses, maintaining blood pressure (B) maintaining posture, balancing the body, coordinating voluntary movements (C) beating of heart, breathing, swallowing (D) thinking, reasoning, memorial storage
ANSWER: [B] Explanation: The cerebellum is the part of the hindbrain that controls posture, balance, and coordination of voluntary movements like walking or picking objects. Reflex actions & impulse transmission → spinal cord and neurons. Blood pressure, breathing, heartbeat, swallowing → medullRead more
ANSWER: [B]
Explanation: The cerebellum is the part of the hindbrain that controls posture, balance, and coordination of voluntary movements like walking or picking objects.
Thus, only posture, balance, and coordination are controlled by the cerebellum.
See lessWrite down the process you followed in making your object. Which tools did you use to make your object?
To make my bamboo pen stand, I cut a piece of bamboo culm using a hacksaw. I then fixed it in a bench vice and sanded the rough outer surface until smooth. The top edges were trimmed neatly. Finally, I applied varnish to protect and decorate it. The tools I used included a hacksaw, sandpaper, measurRead more
To make my bamboo pen stand, I cut a piece of bamboo culm using a hacksaw. I then fixed it in a bench vice and sanded the rough outer surface until smooth. The top edges were trimmed neatly. Finally, I applied varnish to protect and decorate it. The tools I used included a hacksaw, sandpaper, measuring tape, bench vice and brush. This process gave me a polished and useful product.
See lessName two example projects given in this section.
In this section, two example projects are highlighted: Working with Wood and Bamboo and Home Automation. Both projects aim to teach students practical skills in designing, building and maintaining useful products. Learners are free to choose either of these or design their own creative project, withRead more
In this section, two example projects are highlighted: Working with Wood and Bamboo and Home Automation. Both projects aim to teach students practical skills in designing, building and maintaining useful products. Learners are free to choose either of these or design their own creative project, with proper guidance from teachers. This flexibility allows students to explore their interests and develop vocational knowledge in real-life problem-solving.
See less