Class 5 Science - Living Things - CBSE Worksheets Solutions - 1

Q1: Match the following

Ans:
A. Response to stimuli - (v) Reaction to sensations like touch, light, cold and sound
B. Non-living things - (i) Rock
C. Oviparous - (vii) Crow
D. Bacteria - (vi) Microscope
E. Reproduction - (iii) Giving rise to another organism of the same kind
F. Death - (ii) The event at which an organism ceases to live
G. Viviparous - (iv) Horse

Q2: Multiple Choice Questions (MCQs).

Living things can grow and develop. They need food to survive, reproduce, and respond to changes in their environment.

(ii) Which of the following is NOT a living thing?
(a) Bacteria
(b) Fungus
(c) Virus
(d) Plant
Ans: (c)

Viruses are not considered living things because they cannot reproduce or carry out metabolic processes on their own. They depend on the host cells to reproduce.

(iii) What is the smallest unit of life?
(a) Cell
(b) Tissue
(c) Organ
(d) System
Ans: (a)

The cell is the smallest unit of life. It is the basic building block of all living organisms.

(iv) What process do plants use to make their own food?
(a) Respiration
(b) Photosynthesis
(c) Digestion
(d) Excretion
Ans: (b)

Photosynthesis is the process by which plants, algae, and some bacteria produce their own food using sunlight, water, and carbon dioxide.

(v) Which characteristic is true for living things?
(a) Lack of movement
(b) Sensitivity to stimuli
(c) Inability to reproduce
(d) Dependence on non-living things for energy
Ans: (c)

Living things are sensitive to touch and can respond to changes in their environment, unlike non-living things.

Q3: Fill in the blanks.

(i) Living things can be classified into ______ kingdoms.
Ans: Living things can be classified into five kingdoms.

(ii) The ability to grow and reproduce are characteristics of _______ things.
Ans: The ability to grow and reproduce are characteristics of living things.

(iii) The kingdom _______ consists of single-celled organisms without a nucleus.
Ans: The kingdom Monera consists of single-celled organisms without a nucleus.

(iv) The kingdom _______ includes multicellular organisms with cell walls made of chitin.
Ans: The kingdom Fungi includes multicellular organisms with cell walls made of chitin.

(v) Living things take in and use _______ to carry out their life processes.
Ans: Living things take in and use energy to carry out their life processes.

(vi) Green plants prepare food by the process of ________.
Ans: Green plants prepare food by the process of photosynthesis.

(vii) Animals get their food from _______ or other animals.
Ans: Animals get their food from plants (autotrophs) or other animals.

(viii) Eyes are sensitive to _____ and ears are sensitive to _____.
Ans: Eyes are sensitive to light and ears are sensitive to sound.

Q4: True or False.

Growth and reproduction are characteristics of living things, not non-living things.

(ii) Living things can respond to their environment.
Ans: True

Living organisms can sense and react to changes in their environment to help them survive.

(iii) All living things have a nucleus.
Ans: False

Prokaryotic organisms, such as bacteria, do not have a nucleus.

(iv) Living things can excrete waste.
Ans: True

Excreting waste is a part of the life processes that help maintain the internal environment of living organisms.

(v) Living things do not need energy to carry out their life processes.
Ans: False

Energy is required for growth, reproduction, and other life processes.

Q5: Short Answer Questions.

• They are made up of cells.
• They can grow and develop.
• They need energy and nutrients to survive.
• They can reproduce and produce offspring.
• They respond to changes in their environment.

(ii) Why do living things need energy?
Ans: Living things need energy to carry out life processes such as growth, development, reproduction, and maintaining their internal environment (homeostasis).

(iii) How do living things get rid of waste?
Ans: Living things get rid of waste through excretion. This process helps them remove unwanted substances from their bodies, such as carbon dioxide, urea, and other waste products.

(iv) What is the importance of reproduction for living things?
Ans: Reproduction is important for living things because it allows them to create offspring and ensure the survival of their species. It also helps maintain a balance in the ecosystem and pass on genetic traits to the next generation.

(v) Describe the process of respiration in living things.
Ans: Respiration is the process by which living things obtain energy from the food they consume. During respiration, glucose (sugar molecule) is broken down with the help of oxygen, producing carbon dioxide, water, and energy. This energy is then utilized by the cells to carry out various life processes.