16 Questions
Which animal is herbivorous?
Cow
What type of heterotroph is a bear?
Omnivorous
Which of the following animals is a scavenger?
Vulture
Which stage involves taking in food?
Ingestion
What type of animal is a lion?
Carnivorous
Which parasite lives inside the human body?
Tapeworm
The process of breaking down food into smaller, soluble substances is called?
Digestion
Which of these is considered an ectoparasite?
Tick
Which of the following is the correct order of steps in the process of nutrition?
Ingestion, Digestion, Absorption, Assimilation, Egestion
How do bees and hummingbirds take in food?
By sucking nectar from flowers
Which part of the human body is primarily responsible for the absorption of digested food?
Small intestine
What is the process called when undigested and unabsorbed food is thrown out from the body?
Egestion
What is the function of digestion in the process of nutrition?
Breaking down food into simple soluble substances
Which of the following organisms swallow their prey whole?
Snakes
Which process involves the transportation of absorbed nutrients to different parts of the body?
Assimilation
What happens to food substances during assimilation?
They are converted to energy, growth, and repair materials.
Study Notes
Classification of Heterotrophs
- Heterotrophs are classified into different types based on their eating habits.
- Herbivorous animals obtain food only from plants, e.g., cow, sheep, goat, deer, elephant, kangaroo, giraffe.
- Carnivorous animals obtain food by killing other animals, e.g., tiger, lizard, lion.
- Omnivorous animals consume plants and other animals for nutrition, e.g., bear, dog, human beings.
- Parasites obtain their food from other animals, either by living inside (endoparasites) or outside (ectoparasites) their body, e.g., tapeworm, roundworm, tick, lice.
- Scavengers feed on the remains of dead animals, e.g., vulture, crow, jackal.
Process of Nutrition
- The process of nutrition involves five stages: Ingestion, Digestion, Absorption, Assimilation, and Egestion.
- Ingestion is the taking in of food into the body.
- Digestion is the breakdown of food into smaller, soluble substances.
- Absorption is the process of taking in the digested food into the living organism.
- Assimilation is the process where absorbed nutrients are converted to useful substances.
- Egestion is the removal of undigested food from the body.
Nutrition in Amoeba
- Amoeba is a unicellular organism that does not have definite organs for egestion.
- It uses vacuoles to excrete waste.
- Amoeba takes in food by engulfing it with its pseudopodia.
- Digestion and absorption occur within the vacuoles.
- The absorbed nutrients are then assimilated into the cell's cytoplasm.
Learn about the different types of heterotrophs, including herbivorous and carnivorous animals, and their varying modes of feeding. Understand how they obtain their food and the classification of heterotrophs based on their eating habits.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
