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CBSE - Class 10 Science Life Processes Worksheet
Which part of the nephron is responsible for filtration of blood?
Tubules
b.Collecting duct
c.Glomerulus
d.Bowman's capsules
Identify the correct path of urine in the human body.
Kidney → urinary bladder → urethra → ureter
b.Kidney→ urethra→ urinary bladder→ ureter
c.Kidney → ureter → urethra → urinary bladder
d.Kidney → ureter → urinary bladder → urethra
Which chamber of heart receives oxygenated blood first
Right atrium
b.Right ventricle
c.Left atrium
d.Left ventricle
The process of breakdown of glucose in the absence of oxygen is called?
Glycolysis
b.Fermentation
c.Photosynthesis
d.Translocation
The autotrophic mode of nutrition requires
carbon dioxide and water.
b.chlorophyll.
c.sunlight.
d.all of the above.
Assertion (A): Bile juice contains no digestive enzymes.
Reason (R): Bile only breaks down proteins into amino acids.
Both A and R are true, and R is the correct explanation of A.
b.Both A and R are true, but R is NOT the correct explanation of A.
c.A is true but R is false.
d.A is false but R is true.
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
cytoplasm.
b.mitochondria.
c.chloroplast.
d.nucleus.
A person’s trachea gets partially blocked. Which process will be most immediately affected?
Cellular respiration
b.Gas exchange in alveoli
c.Transport of oxygen by blood
d.Breakdown of glucose
The movement of water in xylem is due to
Translocation
b.Transpiration pull
c.Diffusion
d.Osmosis
Which gas is taken in and which is given out during the process of aerobic respiration?
O? taken in, CO? given out
b.CO? taken in, O? given out
c.O? taken in, N? given out
d.CO? taken in, N? given out
Which component of blood Helps in blood clotting
WBC
b.RBC
c.Platelet
d.Hemoglobin
Blood pressure is highest in
Veins
b.Capillaries
c.Arteries
d.Venules
A student places, a potted plant in a dark room for 48 hours. What will happen?
Starch increases
b.CO2 production shops
c.Photosynthesis stops completely
d.Transpiration becomes faster
In which mode of nutrition an organism derives its food from the body of another organism without killing it?
Saprotrophic nutrition
b.Parasitic nutrition
c.Holozoic nutrition
d.Autotrophic nutrition
Kidneys perform filtration, reabsorption, and secretion. The glomerulus has high pressure which enables ultrafiltration.
Assertion (A): Urea is removed from the blood in the kidney tubules.
Reason (R): Urea is selectively reabsorbed into the blood during urine formation.
Both A and R are true, and R is the correct explanation of A.
b.Both A and R are true, but R is NOT the correct explanation of A.
c.A is true but R is false.
d.A is false but R is true.
Assertion (A): The left ventricle has thicker walls than the right ventricle
Reason (R): The left ventricle pumps blood to the entire body.
Both A and R are true, and R is the correct explanation of A.
b.Both A and R are true, but R is NOT the correct explanation of A.
c.A is true but R is false.
d.A is false but R is true.
In which part of the cell does glycolysis Occur
Mitochondria
b.Cytoplasm
c.Ribosomes
d.Nucleus
A student places a plant in a sealed container but adds a dish of KOH inside. What happens to the rate of photosynthesis?
Increases
b.Decreases
c.Becomes zero
d.Doubles
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