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.
- 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……….. - 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.