Questions for board exams.
1. Name the
site of photosynthesis. (CBSE 2004 )
2. Biological
reactions in our body depends on the presence of biocatalysts. What name is
given to these catalysts? How is the activity influenced by the changes in
temperature?(CBSE 2005)
3. Write a
note on nutrition in fungi. (CBSE 2005 comptt)
4. What is
breathing? (CBSE 2006 )
5. How do
autotrophs obtain Carbon dioxide and nitrogen to make their food? (CBSE 2008)
6. What is the
role of saliva in the digestion of food? (CBSE 2008 comptt )
7. What is the
role of the acid in our stomach?(CBSE2008 comptt )
8. State the
function of digestive enzyme (CBSE 2008 comptt )
9. Name the
two ways in which glucose is oxidized to provide energy in various organisms. (CBSE
2008 comptt )
10.
What advantage over an aquatic organism does a
terrestrial organism with regards to obtaining oxygen for respiration? (CBSE
2008 comptt )
11.
Where do plants get each of the raw materials required
for photosynthesis? (CBSE 2008 comptt )
12.
Name the green dot like structure in some cells
observed by student when a leaf peel was viewed under a microscope. What is
this green colour due to? (CBSE 2010 )
13.
State the basic difference between the process of
respiration and photosynthesis. (CBSE 2010 )
14.
Name the intermediate and the end products of glucose
breakdown in aerobic respiration. (CBSE 2010 )
15.
Name the largest artery in the human body. (CBSE 2005
comptt)
16.
Name the type of blood vessel which carry blood from
organ to the heart. (CBSE 2006 )
17.
Name a part of the human body which is a part of the excretory system. (CBSE 2006
comptt)
18.
Name the term for transport of food from leaves to
other parts of the plant. (CBSE 2007 )
19.
Name the excretory unit in kidney. (CBSE 2007)
20.
What process in plant is known as transpiration(CBSE
2008 )
21.
Name the tissue which transport soluble product of
photosynthesis in a plant. (CBSE 2008 )
22.
Name the tissue which transport water and mineral in
the plant(CBSE 2008)
23.
What will happen to the plant if xylem is removed. (CBSE
2009)
B. 2 marks Questions
1. Leaves of a healthy potted plant were
coated with Vaseline to block stomata. Will this plant remain healthy for long?
State three reasons for your answer.(CBSE 2004)
2. Write any two functions of
pancreases. (CBSE 2005)
3. List 3 points of difference between
aerobic and anaerobic respiration. (CBSE 2005 comptt.)
4. How does absorption takes place in
the small intestine of humans. (CBSE 2005)
5. Draw the diagram of the cross section
of leaf and label the following in it.
Chloroplast (b) guard
cells. (c) lower epidermis (d) upper epidermis (CBSE 2006)
6. Write the functions of the following
in the digestive process
(a)
Bile
(b)
Pancreatic
amylase (CBSE 2006)
7. Differentiate between excretion and
osmoregulation. (CBSE 2005.)
8. Name three different kinds of blood
vessel and write the function of each. (CBSE 2005 comptt.)
9. State the two vital functions of
human kidney. Name the procedure used in the working of artificial kidney.
(CBSE 2007.)
10.
Point
out two difference between arteries and vein (CBSE 2007.)
11.
What
do you mean by double circulation of blood. (CBSE 2007.)
12.
Write
one functions each of the following components of the transport system in human
beings. ( i) blood vessesls (ii) blood platelets (iii) lymph (iv) heart (CBSE
2008.)
3 marks question
1. Give reason for the following
(a)
The
glottis is guarded by epiglottis
(b)
The
lung alveoli are covered with blood capillaries
(c)
The
wall of trachea is supported by cartilage rings (CBSE 2006)
2. Label parts of human respiratory
system(CBSE 2006 comptt)
3. State the role of following in the
human respiratory system
(a)Nasal cavity (b)
diaphragm (c) Alveoli (CBSE 2006 comptt)
(d)
How
are oxygen and carbon dioxide transported in human beings? How are lungs
designed to maximize the area for exchange of gases? (CBSE 2008)
(e)
Write
3 points of difference between aerobic and anaerobic respiration. (CBSE 2008)
4. (i) Name any two different ways in
which glucose is oxidized to provide energy in various organisms.
(ii)write any two
difference between the two ways of oxidation of glucose in organisms.
5. With the help of a diagram describe
the process of urine formation in nephron of human kidney. (CBSE 2004)
6. Write the important functions of
blood. (CBSE 2004)
7. What is translocation? Why is it
essential for plants? Where in plants are the following synthesized. A. sugars.
B. hormones. (CBSE 2005)
8. Name the constituents of blood. Why are
white blood corpusles called soldiers of the body. (CBSE 2005)
9. What happens to glucose, which enters
the nephron along with filtrate during excretion in human beings? State two
vital functions of human kidney? (CBSE 2005 comptt)
10.
What
is double circulation in human beings? Why is it necessary? (CBSE 2008 comptt)
5 marks questions
1. Name the main organs of human
digestive system in order in which they are involved in digesting food.in what
steps and how does digestion or carbohydrates and proteins take place in our
body? List 3 points of difference between aerobic and anaerobic respiration.
(CBSE 2004)
2. Explain the process of photosynthesis
in plants. List 4 factors which influence this process and describe how each of
them affects the rate of photosynthesis process. List 3 points of difference
between aerobic and anaerobic respiration. (CBSE 2005.)
3. Define the terms nutrition and
nutrients. list two difference between
holozoic nutrition and saprophytic nutrition. Give two examples of each type of
nutrition. (CBSE 2005.)
4. Explain the process of food digestion
in alimentary canal. (CBSE 2006 comptt.)
5. Explain the role of different
digestive glands used in human digestive system. (CBSE 2006.)
6. Take 1 ml starch solution in two test
tubes A and B. add 1 ml saliva to test tube A and leave both test tubes undistributed
for half an hour. Now add a few drops of iodine solution to the test tubes. On the
basis of observation, answer the following questions:
a. In which test tube do you observe a
color change?
b. What does this indicate about the
presence or absence of starch in the action of saliva on starch? (CBSE 2007.)
7. Draw a diagram of human alimentary
canal. Label the following on the diagram
oesophagus, liver, gall bladder, large intestine.
What is the function of liver in the human body (CBSE 2007.)
8. Draw a diagram of human alimentary
canal. Explain the function of liver and pancreas. Name the organ that perform
following function in humans (i) absorbtion of digested food. (ii) absorbtion of
water. (CBSE 2008.)
9. Draw a diagram of human alimentary
canal. Label the following on the diagram
oesophagus, liver, gall bladder, pancreas
B. explain the statement
bile does not contain any enzyme but it is essential for digestion. (CBSE 2009.)
10.
Explain
the process of digestion of food in mouth, stomach, and small intestine in human
body or (a) list the three events that occur during the process of
photosynthesis. Explain the role of stomata in the process. (b) describe an
experiment to show that sunlight is essential for photosynthesis. (CBSE 2010.)
11.
Draw
neat and label diagram of human respiratory system. Explain in brief the role
of lungs in exchange of gases. (CBSE 2010.)
12.
Name
the blood vessel that brings oxygenated
blood to the human heart. Which chamber of the human heart receives oxygenated blood.
explain how oxygenated blood from this chamber is sent to all parts of the body.
(CBSE 2004)
13.
Draw
a diagram of human urinary system and label in it kidney, ureter, urinary bladder,
urethra. And name the two major components of human urine. (CBSE 2006)
14.
What
is blood transfusion? What could be the consequence if proper matching of blood
is not done during transfusion? Give the reason of such a consequence. (CBSE
2006 comptt)
15.
How
does blood circulate between lungs and heart in human beings? Give two
functions of lymph in the human body. (CBSE 2006 comptt)
16.
Draw
a sectional view of human heart and label on it
Aorta, right ventrical and
pulmonary vein. (b) state the function of blood and lymph in circulatory system
(CBSE 2008)
17.
Draw
a diagram of excretory system of human being and label on it aorta, vena cava,
urinary bladder and urethra. List two vital functions of kidney. (CBSE 2008)
18.
Draw
a neat labeled diagram of human excretory system and describe in brief the
function of kidneys, ureters, urinary bladder and urethra. (CBSE 2010)
