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BIOLOGY
1- Which organelle of the plant cell can consume O2 and
produce CO2 ?
a) Chloroplast b) Lysosome c) Ribosome
d) Mitochondria e) E.R
2- Which organell is found in all cells?
a) Cell membrane b) Mitochondri c) Ribosome d) E.R. e) Vacuole
3- I. Enzymatic activity II. Chloroplast
III. Nucleotides IV. Protein
Which of the above are present in all living things?
a) I-II b) III-IV c) II-IV d) I-III e) I-III-IV
4-Which of the following cell organelles cause a increase in the concentration of organic material in the cytoplasm?
a) Golgi b) Chloroplast c) Ribosome
d) Mitochondria e) ER
5-A cell has cell wall. Which of the following organelle can not be found in this cell ?
a) Cell membrane b) Centrosome c) Vacuole
d) Chloroplast e) Mitochondria
6-Which of the following is main characteristic of cell membrane ?
a) Thin layer b) Contain protein c) Selectively permeable d) Contain lipid e) It is permeable to all matters
7- Which of the following organism has procaryotic cell ?
a) Human b) Cow c) Fish d) Bacteria e) Apple tree
8-Which of the following pair of organelles produce ATP ?
a)Chloroplast Golgy b)Mitochondria Ribosome
c)Vacuole Chloroplast d)Chloroplast- Mitochondria . e)Centrosome E.R
9-Which of the following gives red color to fruit and vegetables ?
a) Chromoplast b) Chlorophyll c) Licopine
d) Xanthophyll e) Caroten
10-Which of the following organelles is not present in all tissues of a woody plant ?
A-Ribosome B-Chloroplast C-Mitochondrion
D-Cell membrane E-Golgi
11-Which of the following is same for monoploid and diploid ?
A- Chromosome structure B- Amount of genes
C- Chromosome number D- Both have identical genes
E- Amount of DNA
12-Crossing-over occurs in..
A- Interphase I B- Prophase I C- Prophase II
D- Anaphase II E- Anaphase I
13-Transfer of genetic information from DNA to mRNA is known as
a) Translation b) Transcription c) Transpiration d) Transformation e) None
14- AAA TTT CCC GGG--------------DNA
Which of the following is the mRNA strand produced from DNA part ?
a) TTT AAA GGG CCC b) UUU AAA GGG CCC
c) UUU TTT GGG CCC d) TTT AAA CCC GGG
e) AAA TTT CCC GGG
15-mRNA is important in protein synthesis because it
a) Contain 20 essential aminoacid
b) Carriase the message from DNA to nucleus
c) Carriase the message from DNA to ribosome
d) mRNA is transmitted to the nucleotides
e) Contains pyrimidine base thymine
16-Which of the following represents the sequence of bases on the mRNA formed from a DNA base sequence of AACATC?
a) AAG ATG b) AAT ATC c) UUG UAG d) TTG TAG e) UUT TUT
17- If a protein has 100 amino acids, how many RNA codons would be required for translation to occur?
a) 100 b) 33 c) 300 d) 500
18-If a protein has 40 aminoacids, how many RNA nucleotides would be required for protein synthesis?
a) 40 b) 80 c) 120 d) 160 e) 200
19- Which is the name given to the phase in which on exact copy of DNA is made in nucleus?
a) G1 b) S c) G2 d) Prophase e) Telophase
20-Which of the following is the most important charecteristic of mitosis?
a) Division of cytoplasm into two
b) Formation of four new cells
c) It occurs in both plant and animal cells
d) Equal separation of mitochondria
e) Doughter cells have the same cellular structure and chromosome number
21-In plant cells, spindle fibers are formed by
22- Which of the following is not the depended on mitotic cell division?
a) Development of child from zygote
b) Formation of a chicken egg
c) Development of a plant seed
d) Regeneration of organs of trees after cutting
e) Generation of buds from a stem
23-Which of the following is a difference between mitosis and meiosis ?
a) Replication of DNA b)Formation of spindle fibers c) Location of chromosome on equator of cell
d) Shortening and thickening of chromosomes
e) Formation of chromatids
24-In which stage of meiosis are the homologous chromosomes separated from each other ?
a) Prophase I b) Anaphase II c) Telophase I d) Anaphase I e) Telophase II
25- If 8 tetrads are forming in the period of meiosis ,what is the number of chromosomes in this organisms?
a) 4 b) 8 c) 16 d) 32 e) 64