Q1. Give one function of the following:
a. Autotrophs
b. Proteins
Q2. Define the following terms:
a. Nutrients
b. Glycogen
c. Specular Reflection
Q3. What will happen if ...?
a. the distance between a light source and an opaque object is changed.
b. the food items placed at the top of the given figure are swapped with the food items at the bottom of the figure (see the picture at the bottom).
Q4. Differentiate between the following:
a. Opaque and Transparent objects
b. Herbivores and Carnivores
Q5. Mehak overheard a conversation between her mother and their house help. House help's daughter is not able to see clearly at night. So Mehak requested her mother to give some milk, green leafy vegetables and carrots on a regular basis to her
a. Why do you think Mehak has asked to give these food items for the house help's daughter?
b. Which value does Mehak demonstrate?
Answers
Answer:
Q1. a. Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy.
b. Structural component
Q2. a. substance that is needed to keep a living thing alive and to help it grow
b. a substance deposited in bodily tissues as a store of carbohydrates. It is a polysaccharide which forms glucose on hydrolysis
c. Specular reflection is a type of surface reflectance often described as a mirror-like reflection of light from the surface. In specular reflection, the incident light is reflected into a single outgoing direction.
Q3. a. sorry rest I dont know