mhsof

Basic Education High School, Kan, Gangaw Township
20154 , December , Pre Test
Grade 11 , Biology ,Time allowed (3) hours
Write your answer in your answer booklet. Don’t copy the questions.
1.State TRUE or FALSE to the following statements. Don’t copy the statements. (20 marks)
(i) The region of the cell division is the growing point of the stem.
(ii) A young stem with its leaves is called the root.
(iii) Commelina is the bisexual flower which can take place self- pollination.
(iv) After fertilization the antipodal cell disappears.
(v) The cell of martynia are dispersed by animals.
(vi) The maize grain consists of a yellowish patch on one side of the grain that makes the embryo.
(vii) Fats and oils are obtained from a large variety of seeds.
(viii) The anterior duodenum and posterior ileum constitute the small intestine.
(ix) Diaphragm is a longitudinal partition across the body of the rabbit.
(x) Chlorophyll absorbs light mainly from green wave length.
(xi) There are molar in lower jaw than the upper jaw in carnivores.
(xii) Respiration is a rapid step by step oxidation controlled by many enzymes.
(xiii) Osmosis, a special type of diffusion performs the process of transport.
(xiv) The haemoglobin combines with oxygen in the heart to and from oxyhaemoglobin.
(xv) Florigen is the flowering hormone.
(xvi) Retractor muscles pull the limbs backwards.
(xvii) Fertilization of egg and sperm take place in the uterus.
(xviii) The genotype of the offspring is formed by the combination of the gametes.
(xix) Nature selects the fittest and strongest individual in a given environment.
(xx) Production of radioactive materials causes pollution.

1. Complete the following statements with appropriate words. Don’t copy the statements. (20 marks)
   (i) The type of roots in the sugarcane and bamboo are known as ……….. roots.
   (ii) In bladderwort, some segmented leaves are modified into ……….. .
   (iii) Flowers which have both stamens and carpels are termed as ……….. .
   (iv) The definitive nucleus is formed by the fusion of two ……….. .
   (v) We can get many ………..products like dyes,oils, waxes and drugs from fruits.
   (vi) A ………..is a fertilized and mature ovule.
   (vii) Beans seed is germinated by ………..method.
   (viii) The cavity containing the heart is called ………..cavity.
   (ix) Behind the prostates are Cowper’s glands, the secretion of which helps in the transfer of ………... .
   (x) The ………..is the organ where photosynthesis occur.
   (xi) Mammals have two sets of teeth, the milk dentition and ………. dentition.
   (xii) The energy produced during aerobic respiration is stored in the ……….. as a chemical compound.
   (xiii) Absorption of water in land plants is through ………..part of the root .
   (xiv) Transporting media like ………..system and lymph system are essential for larger invertebrates and vertebrates.
   (xv) A cell body of a ……….consists of nucleus and many dendrites.
   (xvi) Layers of fat cells are found at the base of the ………..in the human skin.
   (xvii) Asexual reproduction in animals takes place by fission ………..fragmentation.
   (xviii)Deoxyribonucleic acid is normally a ………. molecule with capacity for self-replication .
   (xix) The selection done by man is called ………..selection.
   (xx) Animal in an ecosystems are………..
2. Answer ALL questions. (12 marks)
   (a) Differentiate fleshy fruits and dry fruits.
   (b) Give characteristics of mammals dealing with skeletal and food habits.
   (c) State the effect of temperature on the rate of photosynthesis.
   (d) State what you understand of respiration and name its two types.
   (OR)
   Explain how absorption of mineral salt takes place in plants.

(e) State the nature of a nerve and a synapse.
(OR)
Explain how vegetative propagation takes place in strawberry and potato.
(f) Clarify what you understand of diploid and haploid condition in cell division.
(OR)
State what factors cause main effects on pollution of inland water.

1. Answer ANY FOUR questions. (16 marks)
   (a) Differentiate endospermic and non-endospermic seeds.
   (b) Name the parts of the intestine
   Explain the process of alcohol fermentation supports by a relevant equation.
   (d) List the benefits of transpiration and explain the one that is associates with the transpiration streams.
   (OR)
   State the role of ethylene as found in plants.
   (e) State the nature of the umbilical cord associated with the human’s embryo.
   (OR)
   Tabulate to show how mitosis differs from meiosis.
   (OR)
   With example explain what you understand parasitism.
2. Answer ANY FOUR questions. (32 marks)
   (a)

your answer book.)
(b) Name the parts of the rabbit’s brain and state prominent features of the well -developed part and parts
concealed by this part in the dorsal views of brain.
(c) Give a word diagram to show the general pattern of animal nutrition and state the process of digestion and
and chewing .
(d) Explain the experiment to show how the energy is released during respiration aided by relevant diagram.
(OR)

    Providing labels and caption to the given diagram, state the function of the lymph system. . (Do not 
   copy  the diagram in your answer book. Write the label against the number indicated in the lines pointing 
   towards respective areas of the diagram in your answer book. You are also to write the caption and the
   requirements of the question in your answer book.)

(e) State the function of endocrine glands and hormones as found in mammals and tabulate the hormone
secreted from the thyroid gland as given in text .
(OR)
State the process of birth as found in human and what occur after birth.
(f) State the role of the nucleus of cell including about its DNA and RNA associated with heredity.
(OR)
List the type of symbiotic relationships and explain the type where any one species benefits while the other
is neither benefited nor harmed.