Which of the following equations is the summary of photosynthesis? (a) 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O (b) 6CO2 + H2O + Sunlight → C6H12O6 + O2 + 6H2O (c) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6O2 + 6H2O (d) 6CO2 + 12H2O + C

The enzyme responsible for the digestion of proteins in the small intestine is: (a) Pepsin (b) Trypsin (c) Amylase (d) Lipase

When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of (a) oxygen (b) carbon dioxide (c) nitrogen (d) water vapour

The process of digestion is completed by: (a) Intestinal juice (b) trypsin (c) bile juice (d) pepsin

Which is the first enzyme to mix with food i the digestive tract? (a) Pepsin (b) Cellulose (c) Amylase (d) Trypsin

Choose the correct path of urine in our body (a) kidney → ureter → urethra → urinary bladder (b) kidney → urinary bladder → urethra → ureter (c) kidney → ureters → urinary bladder → urethra (d) urinary bladder → kidney → ureter → urethra

The part where the exchange of gases occurs during respiration is: (a) Lungs and larynx (b) Alveoli and throat (c) Throat and lungs (d) Alveoli and capillaries

Fishes have a heart with …………… chambers while the amphibians have …………… chambers in their heart.

The tubular parts of the nephron selectively …………… the substances needed by the body.

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains (a) complex proteins (b) simple proteins (c) fats (d) starch

The extracellular fluid released from the capillaries is: (a) serum (b) plasma (c) lymph (d) mucus

The major driving force for the water in the xylem during day time is the ……………

Artificial kidney is a device which carries out …………… to remove nitrogenous waste products from the blood.