Questions
21
In which of the following groups of organisms, food material is broken down outside the body and absorbed?
Answer: Yeast, mushroom, bread mould
22
Select the correct statement
Answer: Heterotrophs do not synthesize their own food
23
If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?
Answer: Starch breaking down into sugars
24
Which part of alimentary canal receives bile from the liver?
Answer: Small intestine
25
In which part of the alimentary canal food is finally digested?
Answer: Small intestine
26
Choose the function of the pancreatic juice from the following
Answer: Trypsin digests proteins and lipase digests emulsified fats droplets
27
When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of
Answer: Carbon dioxide
28
Which is the correct sequence of air passage during inhalation?
Answer: Nostrils → Pharynx → Larynx → Trachea → Alveoli
30
Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by
Answer: Hippocampus, Exocoetus, Anabas
31
In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
Answer: Pisces only
