SS1: BIOLOGY – 1ST TERM Recognizing Living Things | Week 2 Differences between Plants and Animals

Lesson 2, Topic 2

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Differences between Plants and Animals

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Differences between Plants and Animals

Plants and animals are easy to differentiate by their appearance and unique characteristics. The table below shows key differences between plants and animals.

Plants Vs. Animals

Characteristics:	Plants:	Animals:
Nutrition:	Mode of nutrition is autotrophicAn autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. It feeds itself, without the assistance of any other organisms. The word... More i.e. they can make their own through photosynthesisPhotosynthesis is the process by which green plants, and some algae and bacteria, convert the energy of sunlight into chemical energy. This energy is then used to synthesize carbohydrates such as... More.	Mode of nutrition is heterotrophicA heterotroph is an organism that consumes other organisms in a food chain. The term stems from the Greek words hetero for “other” and trophe for “nourishment.” More or holozoic i.e. they depend on plants and other animals for food.
Movement:	They are usually rooted and movement is limited to some parts of the plant.	They can move from one place to another with the help of organs for locomotion.
Growth:	Growth is apical i.e. at the root & shoot tips, & continuous throughout its life span.	All parts of the organism grow and stop at the adult stage.
Irritability:	Responds slowly to stimulus.	Responds faster to stimuli.
Specialized Organs:	Lack of specialized organs for excretion, respiration and coordination.	Possesses specific organs for excretion, respiration and coordination.
Cells:	• Presence of cellulose. • Cell wall vacuoles are present and usually large. • Centrioles absent.	• Absence of cell cellulose. • Cell wall Vacuoles are usually absent and, when present, are usually small in size. • Centrioles are present.
Shape:	Have no fixed number of parts. They usually have branches.	They are usually compact with a fixed number of parts.
Sense Organs:	Sense organs are absent.	Sense organs are present.
Storage of Carbohydrates:	Excess carbohydrate is stored as starch.	Excess carbohydrate is stored as glycogen.