Assignments-- For SA-1
Class - XI , Subject - Biology
Unit Covered-: 2(Structural organization in Animals and plants.)
Unit -4 : Chapters: (Transport in plants & mineral nutrition in plants)
2 marks Questions:-
1.Give any two reasons to justify that Ginger is a modified stem.
2.What is the difference. & similarity between Prop root & stilt root.
3.Differentiate between simple & compound leaf.
4.Differencebetween recemose & cymose Infloresence.
5.Name the type of placentationin :-
(a)Mustard(b)sunflower
(c)Dianthus(d)Pea
6.Where is food stored in each of following seeds
(a)Pea(b)sunflower
(c) Beans(d)Pea
7.Name the plant & its family from which colchicines is obtained.
9.What is Phallogen ? What does it produce ?
10.Why are annual rings comparatively well marked in plants growing in hilly
areas than those in coastal areas ?
11.What are casparianstrips ? What function thus it perform ?
12.Mention two difference between vascular bundle of sunflower & maize root.
13.What are bulliform cells ? What is their functions.
14.Difference between spring & autumn wood.
15.What are lenticels ? What is their functions ?
16.Name the tissue that lines the urinary bladder state any one advantage of this tissue being present there.
17.Differentiate between septalnephridium & pheringealnephridium.
18.How is the gizzard in the alimentary canal of cockroach suitable for
grinding of food ?
19.What are hepatic caecae ?write their function.
20.Name the structure found at the midgut & hindgut of cockroach. What are they meant for ?
3 marks Questions:-
21.Answer the following with reference to Anatomy of dicot root –
(a) Where is pericyclelocated ?
(b)How are xylem vessels arranged ?
(c)What do you call such an arrangement ?
(d)Which type of cell constitute the cortex ?
22.What is phyllotaxy ? Describe different types of phyllotaxy in Hibiscus, Mint
Nerium.
23.Write any 3 modified forms of tap root for storage with an eg. of each.
24.Draw a diagram to show different regions of a root. Mention the function
of rootcap.
25.How is marginal placentaion differ fromparietal placentation ? Give an exampleofeach.
26.Define the term inflorescence. Explain the basis for the diff. types of
Inflorescence in flowering plants.
27.Name 3 basic tissues system in flowering plants. Give tissue Names under
each system.
28.What is stomatalapparatus ? Explain structure of stomata with labeled
diagram.
29.What are the following & Where do you find them in animal body-
(a)Chondrocytes(b)Axons
(c)Ciliated Epithelium.
30.How are glands classiffiedon the basis of the mode of pouring their
secretion ? Differentiate between them ,with an example for each.
31.How is the gizzard in the alimentary canal of a cockroach suitable for
grinding the food?
32. What essential role does the endodermis play in mineral absorption and
transport in plants?
33. Represent diagrammatically the mechanism of translocation of organic
nutrients.
34. Answer the following questions with reference to nitrogen:
(a) the form in which it is absorbed from the roots.
(B)In which part of the plant it is required?
(c)Two organic compound in which it is a component.
5 marks Questions:-
35.What is meant by modification of root ? What type of modification of root
is found in :-
(a)Banyan trees (b)turnip
(c)Mangroove
36.(a)Draw a neat & labeled diagram. of vertical section of a maize grain.
(b)Why can we not use the term seed for maize grain ?
37.Differetiate betweenhypogynousepigynous flower with an example of
each show diagrammatically, the hypogynous condition.
38.Name/plant of family Fabaceae that yields each of there
(a) edible oil(b)Dye
(c)fibres(d)Medicines
(e)fodder.
39.Describe various types of placentation found in flowering plants.
40.Draw a diag. of T.S. of young dicot root/monocot root/dicot stem/monocot
stem.
41.Explain the process of sec. growth in stems of woody Angiosperms with the
help of diagram. What is its significance ?
42.Draw a neat & well- labeled diagram of digestive system of cockroach.
43. (a) Draw a labeled diagram of Areolar connective tissue.
b) Where is it found in human body ?
(c) How does it differ from Adipose tissue ?
44.Differetiate between the following-
(a) Simple & compound epithelium.
(b) Cardiac & striated muscle.
(c) Dense regularDense irregular connective tissue.
(d) Adipose & Blood tissue.
(e) Simple gland & compound gland.