WorksheetsLIFE PROCESSES ENGLISH MEDIUM
Total questions: 25
Worksheet time: 25mins
Photosynthesis process requires
Sunlight and chlorophyll only
Sunlight, carbon dioxide, chlorophyll and minerals only
Sunlight, oxygen, chlorophyll and minerals
Oxygen, carbon dioxide and chlorophyll only
Organism A prepare their own food materials but organism B do not prepare their own food materials. then A and B are
A = Heterotrophs and B = Autotrophs
A = Heterotrophs and B = Heterotrophs
A = Autotrophs and B = Heterotrophs
A = Autotrophs and B = Autotrophs
Identify the correct order of events occur during photosynthesis in plants.
i) Reduction of carbon dioxide to carbohydrates
ii) Splitting of water molecules into hydrogen and oxygen
iii) Conversion of light energy to chemical energy
iv) Absorption of light energy by chlorophyll
iii i ii and iv
ii iv i and iii
iv iii ii and i
i ii iii and iv
Stomata helps to plants in
Exchange of gases and Transpiration
Digestion and Transplantation
Exchange of gases and Excretion
Excretion and Digestion
Observe the given diagram carefully and choose the best option from the following
Both plants prepare their food in equal amount
Plant B will not prepare the food because of the
lack of carbon dioxide compared to Plant A
Both plant A and B will not prepare their food
Plant A will not prepare the food because of the
lack of carbon dioxide compared to Plant B
Some organisms get their nutrition without killing the body of plant or animal is
Chemotropic nutrition
Parasitic nutrition
Autotropic nutrition
Heterotropic nutrition
Select the correct match
1. Amylase
a. Digesting the proteins
2. Lipase
b. Break down starch into simple sugar molecule
3. Trypsin
c. Break down large globules of fat into small globules
4. Bile salts
d. Break emulsified fats
1 – b 2 – d 3 – a 4 – c
1 – b 2 – c 3 – a 4 – d
1 – a 2 – b 3 – c 4 – d
1 – a 2 – d 3 – b 4 – c
The site of complete digestion of carbohydrates, proteins and fats in animals
Pancreas
Stomach
Small intestine
Large intestine
The entry of food into small intestine from stomach is regulated by
Sphincter muscles
Cardiac muscles
Cilliary muscles
Striped muscles
Villi
Decrease the surface area for absorption
Helps to remove waste material from the body
Receives digested food from the inner wall of stomach
Increase the surface area for absorption
Translocation of food and other materials takes place in sieve tubes in both upward and downward directions is done with the help of
Phloem parenchyma
Xylem parenchyma
Sieve plate
Companion cells
Blood is different from lymph. Identify the correct statement
Blood is red in colour and lymph is a colourless fluid
Blood has less number of proteins compared to lymph
Blood is a fluid which contains only lymphatic capillaries
Blood and lymph are similar in structure
Left atrium and septum are the parts of human heart and they are labelled as A and B. Then the functions of A and B in the given diagram are
A = Pumps deoxygenated blood to right ventricle
B = Separates right and left auricle
A = Pumps oxygen rich blood into left ventricle
B = Separates right and left ventricle
A = Separates right and left auricle
B = Carry deoxygenated blood for purification
A = Helps in back flow of deoxygenated blood to right auricle
B = Helps in back flow of oxygenated blood to left auricle
Double circulation is seen in
Sea horse and Bat
Crocodile and Saw fish
Pigeon and Frog
Lion and Elephant
In mitochondria
Glucose will be converted into pyruvate molecule
Glucose will be converted into ethyl alcohol, CO2 and energy
Glucose will be converted into CO2 and water with the release of energy
Glucose will be converted into lactic acid and energy
Choose the correct match
Terrestrial animals – Rate of respiration is more compared to aquatic animals
Aquatic animals – Rate of respiration is more compared to terrestrial animals
Rate of respiration is equal in both aquatic and terrestrial animals
Aquatic animals respire through lungs and aquatic animals respire through gills
Glucose molecule will be converted into ethanol and carbon dioxide with the release of energy takes place in
Yeast – In the absence of oxygen
Mitochondria – In the presence of oxygen
Muscle cells – In the lack of oxygen
Cytoplasm – In the absence of oxygen
One of the following statement is incorrect with respect to hydrochloric acid is
Creates acidic medium to facilitate the action of enzyme pepsin
Kill micro-organisms present in the stomach entered through the food
Excess amount of this will leads to acidity in the stomach
Creates acidic medium to regulate the action of enzyme pepsin
Plasma functions as
Protects animal body from foreign bodies by producing antibodies
Transports food, carbon dioxide and nitrogenous wastes in dissolved form
Transports oxygen to the all the cells of the body
Kill micro-organisms and produce body immunity
In plants, water will be conducted by
Sieve tube and companion cells
Xylem fibers
Xylem parenchyma
Xylem vessels and Tracheids
Nephron is a
Structural and functional unit of an organism
Structural and functional unit of nervous tissue
Structural and functional unit of kidney
Structural and functional unit of muscular tissue
Excretion in plants is done in the form of
Absorbing carbon dioxide and releasing oxygen through stomata
Storing wastes in cellular vacuoles, falling of leaves and produce resin & gum
Translocation of substances from roots to other parts through suction pressure
Transportation of prepared food from leaves to other parts of plant body
Identify the incorrect statement
Transpiration is less during summer season
Transpiration is less during winter season
Transpiration is done through the stomata
Transpiration is more during summer season
Conversion of glucose to pyruvate molecule takes place in
Muscle cells
Yeast
Mitochondria
Cytoplasm
During fermentation process a gas ‘M’ was released. The gas ‘M’ is
Carbon monoxide
Carbon dioxide
Oxygen
Nitrogen
