Life Processes Quiz

If the rate of respiration becomes more than the rate of photosynthesis, plants will

• grow more vigorously (rapidly) because more energy is available

• be killed instantly

• stop growing and gradually die of starvation

• continue to live, but will not be able to store food

the correct order of steps in nutrition in human beings is

• ingestion - digestion - assimilation - absorption - egestion

• ingestion - digestion - absorption - assimilation - egestion

• ingestion - assimilation - absorption - digestion - egeston

• ingestion - absorption - digestion - egestion - assimilation

a plant is kept in dark cupboard for 48 hours before conducting any experiment on photosynthesis to

• remove starch from the plant

• ensure that leaves are free of starch

• ensure that no photosynthesis occurs

• remove chlorophyll from the leaves

All producers show

• holozoic nutrition

• heterotrophic nutrition

• both A and B

• autotrophic nutrition

pancreas pour secretions into

• large intestine

• oesophagus

• stomach

• duodenum

bile is produced in

• pancreas

• Gall bladder

• duodenum

• liver

Oxygen is needed by the body

• to purify the blood

• to produce ATP

• to pump blood in vessels

• to aerate lungs

During deficiency of oxygen pyruvate is converted into lactic acid in

• mitochondria

• nucleus

• cytoplasm

• chloroplast

passage of inhaled air in human beings

• nostril - pharynx - larynx - trachea - bronchi - bronchioles - alveoli

• nose - larynx - pharynx - bronchus - alveoli - bronchioles

• nose - mouth - lungs

• trachea - lungs - larynx - pharynx - alveoli

inhalation occurs when

• diaphragm is lowered

• ribs move downward

• ribs move upwards

• diaphragm is elevated