Questions

[2 Mark Question Answer]

🎯

Test yourself on this topic

12 questions · timed · auto-graded

Question 12 Marks
Name the types of teeth in human with functions.
Answer
There are four types of teeth:
  1. Incisors - These are used for cutting.
  2. Canines - These teeth are used for tearing.
  3. Premolars - For masticating the food.
  4. Molars - For grinding and masticating the food.
View full question & answer
Question 22 Marks
State one difference in nutrition: Holophylic and Holozoic
Answer
Holophytic nutrition is the nutrition in which organisms prepare organic food in their body from simple inorganic materials like carbon dioxide, water, etc. whereas in holozoic nutrition, the animals survive by consuming other organisms.
View full question & answer
Question 32 Marks
State one difference in nutrition: Holozoic and Saprozoic nutrition
Answer
Holozoic nutrition is a nutrition in which animals survive by consuming other organisms whereas saprozoic nutrition is the nutrition in which the animals absorbs soluble organic nutrients from dead and decaying organic matter.
View full question & answer
Question 42 Marks
State one difference in nutrition: Autotroph and Heterotroph
Answer
Autotroph is an organism which prepares organic food in their body from simple inorganic materials like carbon dioxide, water, etc. whereas heterotroph is an organism which cannot prepare its own food and depends on ready-made food synthesized by green plants.
View full question & answer
Question 52 Marks
State one difference in nutrition: Parasite and Saprophyte
Answer
Parasites are the organisms that live in or on the body of another organism called host, and obtain nourishment from its body whereas saprophyte is an organism that absorbs soluble organic nutrients from dead and decaying organic matter.
View full question & answer
Question 62 Marks
Define with examples: Herbivores
Answer
The organisms that feed on plants only are termed as herbivores.

Examples - sheep, cow, goat, etc.

View full question & answer
Question 72 Marks
Define with examples: Omnivores
Answer
The organisms which feed on all kinds of plant and animal food are called omnivores.

Examples - Cockroach and human beings.

View full question & answer
Question 82 Marks
Define with examples: Carnivores
Answer
The organisms which feed upon other animals and animal products.

Examples - tiger, lion, cat, etc.

View full question & answer
Question 92 Marks
Define with examples: Heterotrophs
Answer
The organisms which cannot prepare their own food and depends on ready-made food synthesized by green plants are called heterotrophs.

Examples - animals and human beings.

View full question & answer
Question 102 Marks
Define with examples: Autotrophs
Answer
These are the organisms which prepare organic food in their body from simple inorganic materials like carbon dioxide, water, etc.

Example - green plants and certain protests.

View full question & answer
Question 112 Marks
What do you mean by nutrition?
Answer
Nutrition can be defined as the process which involves the utilization of food by an animal to obtain energy for growth and development.
View full question & answer
Question 122 Marks
Describe the following: Digestion of fat in the intestine
Answer
The enzyme Dnase converts $\text{DNA}$ into Deoxyribonucleotides, Rnase converts $\text{RNA}$ into ribonucleotides, nucleotidase converts the nucleotides into nucleosides and phosphate and finally nucleoside phosphorylase converts nucleosides into nitrogenous bases and pentose phosphate. Nucleic acids are digested in the small intestine as below:
View full question & answer
[2 Mark Question Answer] - BIOLOGY STD 9 Questions - Vidyadip