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what is peristaltic movement?
in the process of photosynthesis ,food A is prepared which gets converted into food D what are A and B why is A converted to B
describe double circulation in human beings. why it is necessary?
In test tubes A and B, yeast was kept in sugar solution. In test tube A added a thin film of oil and test tube B kept opened. Which product of respiration would you expect in the test tubes A and B.
explain activity 6.1, 6.2 and 6.3
what are the functions of stomata? state 3 points.
Name the intermediate and the end product of glucose break down in aerobic respiration.
why is small intestine in herbivores longer than in carnivores?
Leaves of healthy potted plant were coated with vaseline to block the stomata will this plant remain healthy for long state three reasons for your answer.
Mention the role of following in digestion:
EXPLAIN THE PARASITIC MODE OF NUTRITION WITH 2 EXAMPLES.
name three glands associated with the digestive system. also name their secretion
List three characteristics of lungs which make it an efficient respiratory surface?
How does photosynthesis occur in desert plants ?
what is the difference between saprophytic and parasitic nutrition?
in short explain the alimentary canal(digestive system) in human biengs
What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood?
transpiration is a necessary evil. justify the statement.
In the test tube A and B shown below, yeast was kept in sugar solution. Which products of respiration would you expect in tubes A and B?
Note ( test tube A has an oil film below its opening and test tube B does not have anything except the yeast in sugar solution in the same level as that of test tube A.)
How is the small intestine designed to absorb digested food?
why do we boil the leaf in alcohol when we are testing it for starch
The leaves of a plant first prepare food A by photosynthesis.Food A then gets converted into food B. What are food A and B?
What is the definition of Symbiotic mode of nutrition?
A gas is released during photosynthesis. Name it and also state the way in which rhis gas is evolved.
What is the significance of emulsification of fats??????
which pancreatic enzyme is effective in digesting proteins?
What is the difference between Pepsin and Trypsin.? 5 points please!
Name the respiratory pigment present in humans and state its funtion.
WHAT IS SIMILARITY BETWEEN CHLOROPHYLL AND HEMOGLOBIN?
what are stomata? draw a labelled diagram of stomata & write two function of stomata.
stomata of desert plants remain closed during day time . how do they take up CO2 and perform photosynthesis?
what is the diffrenece between aerobic and anaerobic respiration?
why in the monocot plants stomata present on both surfaces but indicot plants the stomata are present on the lower surface only? Plz explain!!
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds
write an experiment to show that sunlight is necessary for photosynthesis.
what is the difference between grana lamella and stroma lamella ?
a. explain the process of nutrition in amoeba with a diagram
B. how does paramecium obtain its food?
what happens if the oxygenated and deoxygenated blood gets mixed?
How is oxygen and carbon dioxide transported in human beings?
name any two digestive enzymes secreted in human digestive system and write their functions.
explain human digestive system ?
why does our mouth water when we see or eat a food we really like
Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
What is sequence of steps in photosynthesis? How is it different in desert plants and those in temprate regions?
difference between blood and lymph
where sugars and hormones are synthesized in plants
A. Draw a diagram to show open stomatal pore and label on it:
1. Guard cells
B. state two functions of stomata.
C. how do guard cells regulate the opening and closing of stomatal pore?
write the difference between single and double circulation?why is double circulation is necessary in human beings?
lowering of diaphragm result in
what is the function of liver in human body?
Please explain me this?
Explain the digestion of food in human alimentary canal
with the help of an experiment prove that chlorophyll is necessary for photosynthesis?
how are Alveoli designed to maximize the exchange of gases ?
explain the mechanism of photosynthesis?
What is the importance of Excretion and Osmoregulation ?
describe the mechanism of breathing in human beings....
why there is no mixing of deoxygenated blood and oxygenated blood in the human heart normally?
How do the guard cells regulate opening and closing of stomatal pores? Explain with the help on diagram.
The tissue whose activity is important in vegetative propagation of plant grafting is?
how are lungs designed in human beings to maximise the area for exchange of gases?
Why do leaves appear green?
what is holozoic mode of nutrition ?
the structure and functioning of nephrons.
All plants give out oxygen during day and carbon dioxide duringnight”. Do you agree with this statement? Give reason.
the most appropriate part of leaf epidermis in a dicot plant to observe stomata ang guard cells would be on
explain the structure and function of the heart?
Tooth enamel is one of the hardest substance in our body. How does it undergo damage due to eating chocolates and sweets? What should we do to prevent it?
difference between photosynthesis and respiration?
how is haemoglobin associated with respiration?explain
Q: Give 4 points of difference between breathing and respiration?
23. The capillaries join to form
why blood is called connective tissue?
what are the final products of carbohydrates, proteins and fats after their digestion.
what happens when all green plants disappear from earth?
why phloem and xylem are called vascular tissues?
what are events occur during photosynthesis?
10 differences between unicellular and multicellular organisms
why is the fish heart called a venous heart? what type of blood circulation does it represent?
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