BIOLOGY PRACTICE QUESTIONS AND ANSWERS

Ansmyques blog

• Which of the following hierarchies is the most inclusive? A. Kingdom b. Family c. Order d. Species​​ 

• One of the following is not considered when writing the scientific names of living organisms? A. First letter must be uppercase and other letters lower case b. All names must be italicised ​​ c. The first name must represent the specific name and the second, the generic name d. Hand written names may or may not be underlined

• An organism seen to be on the borderline​​ between living and non-living organisms is --- ​​ a. Monera ​​ b. Virus c. Fungi ​​ d. Protista​​ 

• Which of these statements about viruses is true? A. They are microscopic and cellular ​​ b. No organized nucleus ​​ c. They are eukaryotic ​​ d. They reproduce sexually by binary fission

• Mammals do not  ​​​​ a. Posses hairs on their skin ​​ b. Possess mammary glands for milk secretion ​​ c. Possess two limbs for locomotion d. Are not more cerebral compared to other living organism

• Bryophytes​​ possess all but ​​ a. Vascular bundles ​​ b. Chlorophyll c. Rhizoids and leaves ​​ d. Sexual and asexual reproductions​​ 

• The hydra is a coelenterate, one characteristic feature of the hydra is ​​ a. Possession of stinging cells b. Absence of sensory cells c. Absence of nerve net ​​ d. Possession of ectoderm, mesoderm and endoderm

• Class insecta possesses all but one of the following a. Three pairs of legs b. One pair of antennae c. Trachae for gaseous exchange exchange ​​ d. A cephalothorax and an abdomen

• One of these organisms is poikilothermic ​​ a. Cat ​​ b. Lizard ​​ c. Bird ​​ d. Man

• According to felix dujardin a. The cell is the basic structural and functional unit of life b. Comprises the living and non-living components ​​ c. The cell is a fundamental component of plants and animals ​​ d. All cells come from pre-existing cells

The function of i is ----------- a. Boundary creation ​​ b. Regulation of immigrating and emigrating materials ​​ c. Flexibility and resilience d. All of the above

• The part regarded as the ‘power house’ of that structure is labelled a. I ​​ b. Ii ​​ c. Iii ​​ d. Iv

• An​​ organelle which packages and transports materials within the cell is the ---- ​​ a. Vesicle ​​ b. Ribosome c. Golgi body ​​ d.​​ Endoplasmic​​ reticulum

• Plant​​ cells are different from animal cells in that they possess ------ a. Chloroplast and nuclear membrane ​​ b. Cell wall and mitochondria ​​ c. Chloroplast and cell wall ​​ d. Ribosome and lysosome

• The nervous system is different from the endocrine system in that ​​ a. Impulses are transferred at a slower rate ​​ b. It produces wide spread effects ​​ c. Impulses are transferred electrically ​​ d. The blood serves as impulse conduit medium

• Osmosis is the ------ a. Movement od water from a region of lower solute concentration to a region of​​ higher​​ solute concentration through a semi-permeable membrane ​​ b. Movement of water from a hypertonic solution to hypotonic, through a semi-permeable ,membrane ​​ c. Movement of salt molecules across a semi-permeable membrane ​​ d. Movement of solute molecules from​​ a hypotonic solution to a hypertonic solution through a semi-permeable membrane

• What part of the brain controls body posture? A. Cerebrum ​​ b. Hypothalamus ​​ c. Medulla​​ oblongata ​​​​ d. Cerebellum

• I. Dip the leaf into alcohol ​​ ii. Boil for 30 secs ​​ iii. Leaf​​ turns blue black ​​ iv. Add few drops of iodine solution.  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ The correct sequence, when testing a leaf for starch is ---------- a. I-ii-iii-iv ​​ b. Ii-i-iii-iv ​​ c. Iii-iv-i-ii ​​ d. Ii-i-iv-iii

• Nitrification process a. Removes nitrogen from the soil and adds to the atmosphere b. Removes nitrogen from living​​ organisms​​ and adds to the atmosphere ​​ c. Removes nitrogen from the atmosphere and adds to the soil d. None of the above​​ 

• One chemosynthetic organism is ---------- ​​ a. Nitrosamines b. Green plants ​​ c. Diatom ​​ d. Spirogyra

• 6co2​​ + 6h2o  ​​ ​​ ​​ ​​ ​​ ​​​​ c6h12o6 ​​​​ + 6o2. The name given to the reverse process above is ----- a. Respiration ​​ b. Oxidation ​​ c. Photosynthesis ​​ d. Hydrolysis

• Which of the following processes​​ do not occur​​ in​​ light-independent​​ stage of photosynthesis? A. Excitation of chlorophyll ​​ b. Photolysis of water ​​ c. Reduction of carbon (iv) oxide ​​ d. Trapping of h+​​ by nad and rubp

• Which of these is an importance of diffusion to living organisms? A. Movement of sir in the inter cellular space of flowering plants ​​ b. Exchange of gases c. Absorption of food nutrients in the small intestine of flowering plants ​​ d. Vision comprehension

• Saprophytes a. Feed on another organism, thereby​​ causing​​ harm to it ​​ b. Feed mutualistically with​​ other organism ​​ c. Feed on ​​ dead-decaying matter d. Feed autothrophically​​ 

• The seat of intelligence and sound judgment is --------  ​​​​ a. Cerebrum ​​ b. Pons varolli ​​ c. Cerebellum ​​ d. Thalamus