Life Processes Worksheet-6
-
Name the two phases in which aerobic respiration is carried out.
-
What makes exchange of gases in gills and lungs possible?
-
Name the substance that is oxidised in the body during respiration.
-
Name the respiratory pigment of blood in mammals.
-
What is the main function of Adam's Apple?
-
How does Amoeba respire?
-
Name the fundamental process in which living organisms release energy within their cytoplasm.
-
Name any organism that can respire without oxygen.
-
Give one point which is common for both aerobic and anaerobic respiration.
-
Name two organisms respiring anaerobically.
-
Why is anaerobic respiration less efficient?
-
Explain why respiration is called an energy release process.
-
Give reasons why respiration is called a catabolic process.
-
What is the source of oxygen in photosyn-thesis?
-
Why are lungs divided into very small sac-like structures called alveoli?
-
Why do mammals require more extensive respiratory surface?
-
Why is breathing through nose healthier?
-
What will happen if the diaphragm of a person gets ruptured in an accident?
-
What are the different respiratory organs in animals?
-
State the functions of grana of chlorophyll.
Answer:
-
External respiration and internal respiration.
-
Thin walled blood capillaries.
-
Glucose
-
Haemoglobin
-
To produce voice in the presence of air.
-
Amoeba respires through the body surface.
-
Respiration.
-
Yeast.
-
In both aerobic and anaerobic respiration, the chemical used in glucose.
-
Bacteria and fungi.
-
Anaerobic respiration is the incomplete breakdown of glucose and produces less energy, so it is less efficient.
-
During respiration the complete molecules are broken down into simple ones by the release of energy.
-
Respiration involves the breakdown of complex molecules into simple ones by oxygen.
-
The source of oxygen in photosynthesis is water.
-
Lungs are divided into small sacs or alveoli to increase the surface area through which respiratory exchange takes place.
-
Mammals need more oxygen to meet the requirement of their high metabolic rate. Therefore, they need extensive respiratory surface.
-
Breathing through nose is healthier because the inhaled air gets filtered by the cilia and mucus present in the nose. Thus, the air that goes into lungs is cleaner.
-
Immediate death due to failure of respiration.
-
Gills, lungs, skin, air tubes or trachea.
-
Light reaction of photosynthesis takes place in grana of chlorophyll.