The lengthy chapters in biology class eleven include several important topics. The subject is vast and covers a variety of biological aspects. Important biological concepts, such as definitions, applications, and enzyme names, are the subject of basic exam questions. You will have a better comprehension of ideas and achieve higher scores in tests and examinations by using Class 11 Questions with Solutions. b) By using these multiple-choice problems for Biology Class 11, students' analytical and complicated problem-solving abilities will be enhanced.

1. SAT
BIOLOGY E/M
VIDEO
1

2. Cell structure and
Function
MCQs
F.Sc 1
Ch1
P1

3. 1. Which of the following process uses
proofreading to increase its accuracy
a) Transcription
b) DNA replication
c) Recombination
d) Peptide bond formation
b) DNA replication

4. ANSWER AND EXPLANATION
◉ DNA replication is a highly accurate process in part because of
the Proof reading of newly synthesized DNA that occurs
removing and fixing based miss matches this is not true for RNA
synthesis during transcription or any of the Other processes

5. 2. Which of the following is not an organelle
a) nucleus
b) Golgi apparatus
c) lysosome
d) chlorophyll
e) chloroplast
d. chlorophyll

6. ANSWER AND EXPLANATION
◉ Chlorophyll is an essential component of an organelle the
chloroplast but it is a chemical note and organelle

7. 3. Which of the following are correctly associated
a) RNA; thymin
b) DNA ; uracil
c) RNA replication
d) mRNA; picks up amino acids
e) RNA; ribose sugar
e. RNA; ribose sugar

8. ANSWER AND EXPLANATION
◉ RNA is made up of sugar bound to a phosphate group which is
done to one of the four basis it is also correct by having uracil
as one of its bases rather than Thai May

9. 4. the tRNA anticodon for the aminoacid valine is CAA(3* to
5*). what is the mRNA codon for valine(5* to 3*)?
1. TTG
2. GGU
3. CCA
4. CCG
5. GUU
5. GUU

10. ANSWER AND EXPLANATION
◉ mRNA includes a coded base sequence called a codon. tRNA
which carries the amino acids to the mRNA and the ribosome,
has a complementary strand called the anticodon.
◉ Therefore a tRNA with an anticodon of CAA should match the
mRNA codon GUU.
◉ Remember that in RNA, adenine binds with Uracil, and Guanin
ponds with cytosine.
◉ Also nucleic acid strands always Bond with one strand 5* to 3*
and the other in the opposite direction 3* to 5*

11. 5. The source of oxygen given off in photosynthesis is
1. water
2. CO2
3. glucose
4. starch
5. chlorophyll
1. Water

12. ANSWER AND EXPLANATION
◉ In the light reaction light splits water into excited electrons H,
and O2. the excited electrons go on to form ATP and the H
electrons and incorporated in to carbohydrates produced
during the dark reaction. O2 is released into the environment as
a waste product of this reaction.

13. 6. Which of the following is not a lipid
1. Waxes
2. Steroids
3. Carotenoids
4. Albumins
5. Lecithin
4. Albumins

14. ANSWER AND EXPLANATION
◉ Albumin are not Lipid derivatives; they are global proteins.

15. 7. Which is not a characteristic of Proteins?
1. they contain genetic information
2. they can act as hormones
3. they can catalyze chemical reactions
4. they act in cell membrane trafficking
5. they can bind foreign materials
1. they contain genetic information

16. ANSWER AND EXPLANATION
◉ DNA is the only molecule in eukaryotes that contains gene.
◉ Protein may function as hormone enzyme and antibodies

17. 8. RER differs from the SER due to the presence of
1. lysosomes
2. ribosomes
3. mitochondria
4. Golgi apparatus
5. histones
2. Ribosomes

18. ANSWER AND EXPLANATION
◉ Ribosomes the site of protein production give the Arya its
characteristics appearance sections of ER lined with ribosome
where proteins are produced and then transported to the
appropriate areas