Life Processes in Animals
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Nutrition in Animals
SubtopicNutrition in Animals under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
The partially digested food in the rumen of a cow is called ________.
A.Chyme
B.Cud
C.Bole
D.Faeces
- 2.
How many types of teeth are found in a permanent set of human teeth?
A.2 types
B.3 types
C.4 types
D.5 types
- 3.
The mode of nutrition in which organisms take in nutrients from dead and decaying matter is not animal nutrition but ________.
A.Holozoic
B.Saprotrophic
C.Parasitic
D.Autotrophic
- 4.
Which part of the digestive tract is involved in the killing of bacteria?
A.Buccal cavity
B.Stomach
C.Small intestine
D.Large intestine
- 5.
The diagram compares the digestive paths of a cow and a lion. Why is the small intestine of a herbivore like the cow significantly longer than that of a carnivore like the lion?
A.A longer intestine is required to store larger amounts of water from grass.
B.Plant matter contains cellulose which is complex and takes longer to digest.
C.Meat requires more surface area for the absorption of animal proteins.
D.Herbivores need a longer path to slow down the action of stomach acid.
- 6.
A student performed an experiment to study the action of saliva on starch using two test tubes as shown in the diagram. Based on the observation, what can be concluded about the process occurring in Tube B?
A.Saliva has converted the starch in the rice into sugars.
B.The iodine solution reacted with saliva to turn it colorless.
C.Boiled rice does not contain starch before it is chewed.
D.Saliva increases the starch content, making it easier to digest.
- 7.
The process of intake of food is called:
A.Digestion
B.Absorption
C.Ingestion
D.Assimilation
- 8.
The finger-like projections in Amoeba, known as pseudopodia, serve which two primary functions?
A.Reproduction and Digestion.
B.Movement and Capture of food.
C.Respiration and Excretion.
D.Sensation and Protection.
- 9.
Which of the following best describes the chemical environment transition as food moves from the stomach to the small intestine?
A.From alkaline to highly acidic.
B.From acidic to alkaline (facilitated by bile).
C.Remains acidic throughout the entire canal.
D.Remains neutral from start to finish.
- 10.
Which of the following is NOT a component of the human alimentary canal?
A.Buccal cavity
B.Diaphragm
C.Oesophagus
D.Large intestine
Download the worksheet for Life Processes in Animals - Nutrition in Animals to practice offline. It includes additional chapter-level practice questions.
Digestion in human beings
SubtopicDigestion in human beings under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of these components of food is not digested by the human body but helps in bowel movement?
A.Proteins
B.Fats
C.Cellulose (Roughage)
D.Starch
- 2.
The digestion of food is a/an ________ process.
A.Physical
B.Chemical
C.Both Physical and Chemical
D.Electrical
- 3.
What provides the energy for our body during the process of assimilation?
A.Water
B.Absorbed food
C.Bile juice
D.Saliva
- 4.
The total number of molars in the permanent set of teeth is?
A.4
B.8
C.12
D.16
- 5.
Where is the taste bud for 'bitter' taste primarily located on the human tongue?
A.At the tip
B.On the sides
C.At the back
D.All over the surface equally
- 6.
ORS (Oral Rehydration Solution) is given to patients suffering from diarrhoea mainly to:
A.Stop the digestion process
B.Provide energy immediately
C.Prevent dehydration by restoring lost water and salts
D.Kill the bacteria in the stomach
- 7.
The wide part of the alimentary canal where the food stays for the longest duration (about 2-4 hours) for churning is the:
A.Oesophagus
B.Small Intestine
C.Stomach
D.Large Intestine
- 8.
Which nutrient provides the most energy per gram after it is digested and assimilated?
A.Carbohydrates
B.Proteins
C.Fats
D.Vitamins
- 9.
The 'Bitter' taste buds are primarily located on which part of the tongue?
A.Tip
B.Front sides
C.Back sides
D.Back part
- 10.
When we eat in a hurry, we might cough or get hiccups. This happens because food particles enter the:
A.Food pipe
B.Windpipe
C.Stomach
D.Small intestine
Download the worksheet for Life Processes in Animals - Digestion in human beings to practice offline. It includes additional chapter-level practice questions.
Do all animals digest food the same way as humans do?
SubtopicDo all animals digest food the same way as humans do? under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which animal belongs to the group of ruminants?
A.Giraffe
B.Lion
C.Dog
D.Cat
- 2.
Digestion of proteins starts in the:
A.Mouth
B.Stomach
C.Small intestine
D.Large intestine
- 3.
The stomach of a ruminant is divided into how many parts?
A.Two
B.Three
C.Four
D.Five
- 4.
Which of the following uses a 'proboscis' to suck nectar?
A.Butterfly
B.Spider
C.Ant
D.Lizard
- 5.
The digestion of carbohydrates in humans starts in the mouth. Where does it primarily start in ruminants?
A.Mouth
B.Rumen
C.Small Intestine
D.Oesophagus
- 6.
What would happen to a cow if the bacteria in its rumen were removed?
A.It would digest food faster
B.It would not be able to digest grass effectively
C.It would stop drinking water
D.It would start eating meat
- 7.
Which animal uses a 'siphoning' mode of feeding?
A.Honey bee
B.Butterfly
C.Mosquito
D.Louse
- 8.
Comparing the digestive processes: Which animal uses a 'filter feeding' method?
A.Frog
B.Snake
C.Whale
D.Eagle
- 9.
In ruminants, which chamber is responsible for breaking down the food into smaller pieces and mixing it with saliva to form the 'cud' initially?
A.Abomasum
B.Rumen and Reticulum
C.Omasum
D.Small Intestine
- 10.
What is the ultimate source of energy for the symbiotic bacteria living in the rumen?
A.Sunlight
B.The grass (cellulose) eaten by the host animal
C.The host's own body fat
D.Carbon dioxide in the atmosphere
Download the worksheet for Life Processes in Animals - Do all animals digest food the same way as humans do? to practice offline. It includes additional chapter-level practice questions.
Respiration in Animals
SubtopicRespiration in Animals under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of the following is the correct equation for aerobic respiration?
A.B.C.D. - 2.
All living organisms respire to get ________ from food.
A.Water
B.Energy
C.Blood
D.Oxygen
- 3.
During inhalation, the chest cavity becomes ________.
A.Smaller
B.Larger
C.Empty
D.Solid
- 4.
What is the common name for the trachea?
A.Food pipe
B.Windpipe
C.Voice box
D.Blood vessel
- 5.
Frogs are unique animals that can breathe using different organs depending on their environment and stage of development. Study the provided flowchart and identify the respiratory organs labeled as A, B, and C.
A.A: Lungs, B: Gills, C: Spiracles
B.A: Gills, B: Lungs, C: Moist Skin
C.A: Spiracles, B: Lungs, C: Gills
D.A: Gills, B: Tracheae, C: Lungs
- 6.
Select the correct statement regarding anaerobic respiration in humans.
A.It is the main way we produce energy.
B.It happens in the presence of excess oxygen.
C.It occurs temporarily in muscles when there is an oxygen debt.
D.It produces large amounts of energy compared to aerobic respiration.
- 7.
In the experiment using a bell jar and balloons to show breathing, what does the rubber sheet at the bottom represent?
A.Lungs
B.Trachea
C.Rib cage
D.Diaphragm
- 8.
The tracheal tubes in insects are found in which part of the body?
A.Only in the head
B.Only in the abdomen
C.Throughout the whole body
D.Only in the wings
- 9.
Which of the following processes is common to both aerobic and anaerobic respiration?
A.The use of Oxygen
B.The release of Energy
C.The production of Water
D.The production of Lactic Acid
- 10.
A person is climbing a high mountain where the air is thin. Why does their breathing rate increase?
A.Because the temperature is low.
B.Because the concentration of oxygen in the air is lower at high altitudes.
C.Because they are closer to the sun.
D.Because they are carrying a heavy bag.
Download the worksheet for Life Processes in Animals - Respiration in Animals to practice offline. It includes additional chapter-level practice questions.
Respiration in humans
SubtopicRespiration in humans under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of the following is NOT a part of the human respiratory system?
A.Nasal cavity
B.Lungs
C.Small intestine
D.Trachea
- 2.
Which gas is used by cells to break down glucose during aerobic respiration?
A.Carbon dioxide
B.Oxygen
C.Nitrogen
D.Helium
- 3.
An athlete breathes faster and deeper even after finishing the race to:
A.Rest the body
B.Take in extra oxygen to break down lactic acid
C.Decrease body temperature
D.Stop sweating
- 4.
Which of the following increases the surface area for gas exchange in the lungs?
A.Trachea
B.Bronchi
C.Alveoli
D.Ribs
- 5.
In a common classroom experiment used to demonstrate the mechanism of breathing, a student uses a bell jar, a Y-shaped tube, and balloons. Which part of the human respiratory system is specifically represented by the balloons in this model?
A.The diaphragm
B.The rib cage
C.The lungs
D.The chest cavity
- 6.
The process of taking in air rich in oxygen into the body is called:
A.Exhalation
B.Inhalation
C.Digestion
D.Circulation
- 7.
Lactic acid is produced during respiration in which part of the human cell?
A.Mitochondria
B.Nucleus
C.Cytoplasm
D.Cell membrane
- 8.
The provided flowchart shows the stages of oxygen () transport and utilization in the human body. Certain pollutants, such as carbon monoxide, are hazardous because they bind to hemoglobin much more strongly than oxygen does. In the presence of such a pollutant, which transition in the flowchart is the first to be effectively blocked?
A.The physical movement of air from the environment into the lungs (Step A to B)
B.The loading and transport of oxygen from the lungs into the bloodstream (Step B to C)
C.The transport of carbon dioxide from the tissues back to the lungs (Step D to C)
D.The chemical breakdown of glucose within the mitochondria (Step D to E)
- 9.
When we inhale, which of the following is the correct order of organs the air passes through?
A.Nostrils -> Pharynx -> Larynx -> Trachea -> Bronchi -> Alveoli
B.Nostrils -> Larynx -> Pharynx -> Bronchi -> Trachea -> Alveoli
C.Nostrils -> Trachea -> Bronchi -> Larynx -> Pharynx -> Alveoli
D.Nostrils -> Alveoli -> Bronchi -> Trachea -> Pharynx -> Larynx
- 10.
The percentage of water vapor in exhaled air is ______ compared to inhaled air.
A.Lower
B.Higher
C.The same
D.Zero
Download the worksheet for Life Processes in Animals - Respiration in humans to practice offline. It includes additional chapter-level practice questions.
Do other animals breathe the same way as humans do?
SubtopicDo other animals breathe the same way as humans do? under Life Processes in Animals for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of the following is the respiratory organ for a grasshopper?
A.Lungs
B.Gills
C.Spiracles
D.Skin
- 2.
Gills help fish use oxygen dissolved in ______.
A.Air
B.Water
C.Soil
D.Plants
- 3.
In which of these animals does air bypass the blood and go directly to tissues?
A.Human
B.Fish
C.Cockroach
D.Frog
- 4.
The mechanism of breathing in a dog is most similar to that of a ______.
A.Fish
B.Human
C.Cockroach
D.Earthworm
- 5.
Unlike terrestrial animals, fish must constantly move water over their gills to:
A.Stay clean
B.Maintain a continuous supply of dissolved oxygen
C.Keep their body temperature low
D.Swim faster
- 6.
How is oxygen transported to the cells in a fish?
A.Through the tracheal tubes
B.Directly through the skin
C.Through the blood system
D.Through the nervous system
- 7.
Which of these is a similarity between human and fish respiration?
A.Both use lungs
B.Both use gills
C.Both require oxygen for energy release
D.Both breathe atmospheric air
- 8.
In the process of respiration, what is the chemical equation that represents the breakdown of glucose in the presence of oxygen?
A.B.C.D. - 9.
Which of the following statements about respiration in a cockroach is TRUE?
A.The blood of a cockroach is red because it carries oxygen
B.Oxygen reaches the cells of a cockroach faster than it reaches the cells of a human
C.The cockroach uses its mouth to inhale air into the tracheae
D.Cockroaches can breathe even if their head is removed for a short period
- 10.
During the larval stage (tadpole), a frog breathes primarily using which organ?
A.Lungs
B.Skin
C.Gills
D.Tracheae
Download the worksheet for Life Processes in Animals - Do other animals breathe the same way as humans do? to practice offline. It includes additional chapter-level practice questions.