Organisation : State Council of Educational Research & Training
Exam : Higher Secondary Education Exam
Subject : Botany
Document Type : Sample Question Paper
Year : 2014
Class : XI STD
Website : http://www.scert.kerala.gov.in
Download Sample Question Paper : https://www.pdfquestion.in/uploads/8504biologyXI.pdf
Botany Class XI Sample Question Paper :
Maximum : 30 Scores
Time: 1 hour
Cool off time : 10 Minutes
Related : SCERT Kerala Class XI Philosophy Sample Question Paper : www.pdfquestion.in/8502.html
General Instructions to candidates :
** There is a ‘Cool off time’ of 10 minutes each for Botany and Zoology in addition to the writing time of 1 hour each. Further there is 5 minutes ‘preparatory time’ at the end of Botany examination and before the commencement of Zoology examination.
** You are neither allowed to write your answers nor to discuss anything with others during the ‘cool off time’ and preparatory time.
** Use the ‘cool off time’ to get familiar with questions and to plan your answers.
** Read the questions carefully before answering.
** All questions are compulsory and only internal choice is allowed.
** When you select a question, all the sub-questions must be answered from the same question itself.
** Calculations, figures and graphs should be shown in the answer sheet itself.
** Malayalam version of the questions is also provided.
** Give equations wherever necessary.
** Nonprogrammable calculators are allowed in the Examination Hall.
1. By examining the four match pairs given below find out the correct matched pairs from the alternatives given below.
(i) Photolysis of water – Stroma
(ii) Carbon fixation – RuBisCO
(iii)Accessory pigment – Chlorophyll a
(iv) C3 Pathway – Calvin
A. (i) and (iv)
B. (ii) and (iv)
C. (ii) and (iii)
D. (i) and (iii)
2. The protein coat of virus is:
(A) Plasmid
(B) Plastid
(C) Basidium
(D)Capsid
3. Nodule formation in leguminous plants occurs by the continuous interaction between Rhizobium and the plant. Write the main stages in the nodule formation.
4. An incomplete TCA cycle is given below. Complete the numbered boxes by selecting appropriate compounds given below.
Compounds
** Pyruvic acid
** Citric acid
** Phosphoenol pyruvate
** Succinic acid
** Oxalo acetic acid
** Dihydroxy acetone phosphate
5. Compare the gametophyte of moss and fern.
6. (A). Observe the figures A and B given below and explain the processes occuring in each figure.
(B). Explain pressure flow hypothesis of translocation of sugar in plants.
7. Equations (1) and (2) are given below. Analyse the equations and find out the RQ values and type of substrates in each case.
8. Observe the given diagram
a. Write the family of the floral diagram from the choices given below.
A. Solanaceae
B. Liliaceae
C. Fabaceae
D. Brassicaceae
b. Write the floral characters of the identified family.
7. Equations (1) and (2) are given below. Analyse the equations and find out the RQ values and type of substrates in each case.
8. Observe the given diagram
a. Write the family of the floral diagram from the choices given below.
A. Solanaceae
B. Liliaceae
C. Fabaceae
D. Brassicaceae
b. Write the floral characters of the identified family. (3)
9. a. Anaphase of mitosis differ from anaphase I of meiosis. Choose the correct reason from the following.
A. Centromere split and chromatids separate.
B. Reappearance of nuclear membrane.
C. Pairing of homologous chromosomes takes place.
D. Crossing over occurs.
b. Explain the preceding and succeeding stages of anaphase of mitosis. (3)
10. The figure of a vascular bundle is given below.
a. Observe the figure and identify labelled part C
b. Explain the activity of identified part in dicot stem.
11.a.From the alternatives given below, find out the correct organelle known as power house of the cell.
(A) Nucleus
(B) Mitochondria
(C) Ribosome
(D)Endoplasmic reticulum
b. Compare the structural similarities and differences of identified organelle with that of chloroplast. (3)
12. Plant growth regulators are widely used in agricultural and horticultural practices. Write any six such practical applications of plant growth regulators. (3)
13.(A.)Plants growing in tropical regions show high rate of biomass productivity. Explain the biosynthetic pathway helping for this. (OR)
(B) Explain photophosphorylation through chemiosmosis. (3)
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