نبات زراعى 101 e
TRANSCRIPT
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Cairo University Semester :The Second
Faculty of Agriculture Academic Year:2010/2011
Agricultural Botany Dept. Allowed Time : 2 hours
Agricultural Botany/ Physiology 101 ABT English Program
Your answer must be supported by drawings as you can
Exam in Two PagesAnswer the following questions.
Question 1: (15 marks)
A- Define with drawing Three of the following scientific terms:-(7.5 marks)
1- Leaf venation:
It is the distribution of veins (vascular bundles) through the blade
of leaf
2- Abscission zone: it is an area located perpendicular to petiole.3- The pit: it is an area of the primary wall does not have secondary wall
located on.
4- freely membrane: it is a membrane which allow any substance to pass
through it
B- Choose the correct answer between brackets: (7.5 marks)
1. An organ digests wastes inside the plant cell.
(pits - Cell vacuole - ribosomes - nuclear pore)
2. The tissue which consists of vessel, tracheids, parenchyma and fibers.
(epidermis - cortex - sclerenchyma - xylem) .
3. The sclerenchyma tissues function is.
(protein synthesis - starch storage - respiration - supporting)4. Which of these tissues considered as a simple tissue ?
(xylem - phloem - colenchyma - all of these).
5- Fibers have bordered pits on the perpendicular wall.
(sieve plate - tapered end walls - perforation plate - bordered pits)
Question 2: (15 marks)
A- Complete the following sentences: (7.5
marks)
1- Sclerenchyma tissue consists of two types cells areSclereids and Fibers
2- Lateral roots are initiated frompericycle
3- Primary phloem consists ofSieve tube member, sieve cell, parenchyam and fibers
4- Plastid types are chloroplastid, chromoplastid, andproplastid
5- Vascular cambium cells arefusiform and ray initials
B- Complete the following table : (7.5 marks)
Organ Structure FunctionStomata Stomatal pore, guard cell Gas exchange
Choloroplastids Double membrane, stroma, grana Photosynthesis
Mitochonderia Double membrane, matrix Respiration
Ribosome Spherical body Protein synthesis
Meristematic cell Cell wall, protoplast & nucleus division
Question 3: (15 marks)
A- Give the key word suitable for each of the following statement: (5 marks)
1
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1 International Code of Botanical Nomenclature ICBN
2 The dominant form of Mosses, that contains antherdia and
archegonia
gametophyt
e
3 Conjunction between male and female gametes each has (N)
chromosome to form zygote (2N).
fertilization
4 The flower that contain androecium and gynoecium and lack ofcalyx and corolla
Perfect
5 The type of classification based on morphological similarities of
vegetative characters of the plant.
Artificial
B- Answer the following sentences with (Yes) or (No). (5
marks)
1- Double fertilization occurs in gymnosperms. (No)
2- Ferns are vascular plants. (Yes)
3- Complete flower lack of androecium and gynoecium. (No)
4- Each genus belongs to order. (No)
5- Eukaryotes have true nucleus. (Yes)
C- Complete the following sentences: (5 marks)
1- Asexual reproduction types are Fission, vegetative and spores
2- The order includes group of relatedfamlies.
3- The common and constant stage of gymnosperms issporophyte
4- In flowering plants, the ovule consists ofegg cell, synergid cells, pollar
nuclei and antipodial cells.
5- Spirogyra belongs to division chlorophyta
Question 4: (15 marks(
In glycolysis, the glucose, is broken down into two molecules of a 3-carbon
molecule called pyruvate. This change is accompanied by a net gain of 2 ATP
molecules and 2 NADH molecules.
Second step start at the mitochondria when the pyruvate enter to the matrix and
called Citric acid or Krebs cycle
2
Net Products from ATPs
4 ATP
+ 10 NADH.H+
+ 2 FADH2
1 NADH.H+ = 3 ATP
1 FADH2 = 2 ATP
4ATP + 30ATP + 4ATP = 38 ATP