1.
Name the processes that help the living beings to sustain.
Ans. Nutrition, respiration, excretion, transportation,
reproduction, sensitivity and growth are some of the processes that help the
living beings to sustain.
2.
What is meant by peristalsis of the alimentary canal?
Ans. Peristalsis is the alternate rhythmic
contractions and relaxations of the
muscles of the alimentary canal due to which food is pushed forward.
3.What
is that digestive action which occurs in the mouth ?
Ans. Conversion of starch into simple sugar maltose
with the help of enzyme salivary amylase present in the saliva is the digestive
action which occurs in the mouth.
4.
What is the function of sphincter muscles located near the anus?
Ans. Sphincter muscles located near the anus
regulates the exit of undigested food.
5.
Which nutrients are required by the plant for its body building and regulation?
Ans. Plant requires nitrogen, phosphorus, iron and
magnesium for its body building and regulation.
6.Which
nutrient is required by the plants to synthesize protein?
Ans. Nitrogen is required by the plants to
synthesize proteins.
7.Which
enzymes are present in the pancreatic juice?
Ans. Digestive enzymes such as trypsin, lipase and
pancreatic amylase are present in the pancreatic juice.
8.What
is glycolysis?
Ans. Breakdown of 6-carbon, glucose into 3-carbon pyruvate
is called glycolysis.
9.
What is systolic pressure?
Ans. The blood pressure in the artery during
ventricular contraction is called systolic pressure.
10.
What is diastolic pressure ?
Ans. The blood pressure in the artery during
ventricular relaxation is called diastolic pressure.
11.
What are the normal values for blood pressure and which instrument is used to
measure it?
Ans. The normal systolic pressure is 120 mm Hg and
normal diastolic pressure is 80 mm Hg. sphygmomanometer is used to measure the
blood pressure.
12.
Which harmful products are produced in the body due to biochemical reactions?
Ans. Urea, uric acid, ammonia, etc. are the harmful
products that are produced in the body due to biochemical reactions.
13.
Which are the special conducting tissues of the plant ?
Ans. Xylem which carries water and phloem which
carries food are the special conducting tissues of the plant.
14.
What is the function of blood platelets?
