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BIOLOGY (XI) STRUCTURAL ORGANISATION IN ANIMALS |
|
MULTIPLE CHOICE QUESTIONS (MCQs) |
|
1 |
Which of
these statements is true with respect to the anatomy of a frog? (a) The
oviduct and ureters are merged in a female frog. (b) The
urinary and genital ducts are separate in male frogs. (c) The
urinary bladder is ventral to the rectum. (d) Frogs
are uricotelic. |
1 |
|
2 |
The number
of heart chambers in the frog is: (a) one (b) two (c) three (d) four |
1 |
|
3 |
In frogs,
the number of cranial and spinal nerves are: (a) ten and
nine, respectively (b) ten
pairs and nine pairs, respectively (c) nine and
ten, respectively (d) nine
pairs and ten pairs, respectively |
1 |
|
4 |
Which layer
of the skin in frogs contains poison glands? (a) Stratum
spongiosum (b) Stratum
corporum (c) Stratum
compactum (d) Stratum
spongifera |
1 |
|
5 |
Which of the
following are the modes of locomotion in frogs? (a) Swimming
(b) Leaping (c) Walking (d) All of
these |
1 |
|
6 |
Which of the
following features are shown by Rana tigrina? (I) Poikilotherms (II)
Camouflaging (III) Aestivation (IV) Hibernation. Select the correct option: (a) Only (b) (1) and
(III) (c) Only (IV) (d) All of
these |
1 |
|
7 |
..........
is the hormone which helps in the metamorphosis of a tadpole. (a)
Aldosterone (b)
Thyroxine (c)
Calcitonin (d) Cortisol |
1 |
|
ASSERTION AND REASON QUESTIONS (a) Both Assertion (A) and Reason (R) are true and
Reason (R) is the correct explanation of the Assertion (A). (b) Both Assertion (A) and Reason (R) are true and
Reason (R) is not the correct explanation of the Assertion (A). (c) Assertion (A) is true, and Reason (R) is
false. (d) Assertion (A) is false, and Reason (R) True. |
|
8 |
Assertion (A): Frogs are dioecious. Reason (R): Thus, they are referred as hermaphrodites. |
1 |
|
9 |
Assertion (A): Frogs are important for mankind. Reason (R): Frogs eat insects and protect the crop. |
1 |
|
10 |
Assertion (A): There is a hepatic portal system in frogs.
Reason (R): It is a venous connection between the liver and
intestine. |
1 |
|
11 |
Assertion (A): Frogs maintain balance. Reason (R): ecological They are an import |
1 |
|
VERY SHORT ANSWER QUESTIONS |
|
12 |
Trisha
performed an experiment with the head region of a frog but she doesn't know
much about this. What do you know about the head region of a frog? |
2 |
|
13 |
You must have
heard the word 'amplexus' in biology class. What is its meaning? |
2 |
|
14 |
Frogs show
sexual dimorphism. Justify the statement. |
2 |
|
15 |
Write the
pathway of food ingested by a frog. |
2 |
|
16 |
Name some
common Indian species of frogs. |
2 |
|
SHORT ANSWER TYPE QUESTIONS |
|
17 |
(A) How many
chambers are present in the heart of a frog? (B) Mention
all the endocrine glands found in frogs. (C) Explain
the role of thin and moist skin of amphibians. |
3 |
|
18 |
Describe the
economic importance of frogs. |
3 |
|
19 |
Write a
short note on morphology of frog. |
3 |
|
20 |
How can a
male can be frog can be distinguished from a female frog? |
3 |
|
21 |
Write a short
note on gaseous exchange in frogs. |
3 |
|
22 |
Differentiate
between frog and tadpole. |
3 |
|
23 |
What are the
cellular components of blood of frog. |
3 |
|
LONG ANSWER TYPE QUESTIONS |
|
24 |
Frogs have
well-organised male and female reproductive systems. Draw and label both. |
5 |
|
25 |
Make a neat
and labelled diagram of alimentary canal of frog. |
5 |
|
26 |
Give a
detailed account of system for control and coordination in frog. |
5 |
|
27 |
Describe excretory
system of frog. |
5 |
|
28 |
Explain circulatory
system in frogs. |
5 |
|
CASE BASED STUDY QUESTIONS |
|
29 |
Read the passage carefully and answer the following
questions: A frog was
observed near a pond. It had moist skin without scales. The alimentary canal,
pancreas, and liver form the digestive system. The heart was three-chambered
with two auricles and one ventricle. 1. What type
of respiration occurs in frog on land and in water? 2. Why is
frog called a cold-blooded animal? 3. Write the
number and type of chambers in frog’s heart. 4. Which
excretory organ is found in frog? 5. How does
the skin of frog help in respiration? |
4 |
|
30 |
Read the passage carefully and answer the following
questions: A frog was
kept in water and on land alternately. It was observed that in water, the
frog could breathe through its skin, while on land it used its lungs and
buccopharyngeal cavity for respiration. 1. Name the
three modes of respiration in frog. 2. Which
mode of respiration is most useful during hibernation? 3. Why is
frog’s skin always moist? 4. How does
buccopharyngeal respiration occur? 5. What is
the main difference between respiration in frog and in humans? |
4 |
DOWNLAOD THE ASSIGNMENT HERE:
FOLLOW THE INSTRUCTIONS FOR DOWNLOAD THIS ASSIGNMENT:
1. SEARCH WWW.SCIENCEARENA.IN
2. OPEN EDUCATION AND RESOURCES IN MENU BAR.
3. SINGLE CLICK DOWNLOAD AVAILABLE IN DOWNLAOD SECTION.
https://www.sciencearena.in/p/education-resources.html