- What name is given to the process whereby :
What name is given to the process whereby : Red blood cells wrinkle after losing their water to a hypertonic solution?(1mk) Crenation Plant cells become flaccid after losing their water to a hypertonic solution?(1mk) Plasmolysis Virus-free.www.avast.com Post Views: 5
- What is oxygen debt?
The amount of oxygen required to convert (accumulated) lactic acid to water, carbon (IV) oxide and energy/amount of oxygen required to get rid of (accumulated) lactic acid (when supply of oxygen is less than demand)/anaerobic respiration. Post Views: 14
- What is meant by the terms test-cross?
A cross made between a (homozygous) recessive parent and a parent of unknown genotype (to determine whether the unknown genotype in homozygous or heterozygous for dorminant gene RELATED QUESTIONS Post Views: 26
- What is meant by the term allele?
Allele refers to alternative form of a gene which occupy the cell loci which control the same characteristic RELATED QUESTIONS Post Views: 29
- What do you understand by the term cell specialization as used in biology
(a) What do you understand by the term cell specialization as used in biology? (2 marks) This is where cells are modified to perform specific functions. (b) Name any two specialized cells in plants and state how each is modified. Cell Modification (4 marks) (i) Palisade cells […]
- UTUMISHI ACADEMY BIOLOGY PAPER 1 PRE-MOCK REVISION KIT 2023 MODEL14012023003
Post Views: 103
- The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple.
The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple. […]
- The figure below represents a plant
The figure below represents a plant. a) State the division it belongs to. (1mk) Post Views: 4
- The equation below represents a process that takes place in plants.
The equation below represents a process that takes place in plants. Name the process. (1mk) Photosynthesis State three conditions necessary for the process to take place. (3mks) Presence of light Carbon IV Oxide Optimum temperature Water Chlorophyll State three ways in which leaves are adapted to carry out the process named in Above efficiency (3mks) […]
- The diagram below shows the position of an image formed in a defective eye
a) Name the defect. Hypermetropia/long sightedness b) Explain how the defect named in (a) above can be corrected. Post Views: 22
- The diagram below represents the lower jaw of a mammal
The diagram below represents the lower jaw of a mammal Name the mode of nutrition of the mammal whose jaw is shown. (1mk) Holozoic Nutrition. Give reason for your answer in (a) above. (1mk) -Presence of teeth- shows feeds on solids. State one structural and one functional difference between the teeth labeled J and L. […]
- The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution.
The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution. Which of the two cells A and B was immersed in; (2mks) 25% salt solution………………………………………………A 2% salt solution………………………………………………..B Comment on the cell placed in 25% salt solution (2mks) The cell placed in 25% salt solution […]
- State two roles of green plants in fish ponds other than providing food
Post Views: 19
- State two properties of monosaccharide
State two properties of monosaccharide. (2mks) sweet taste soluble in water What is the main function of monosaccharide in organisms? (1mk) Provision of energy. Virus-free.www.avast.com Post Views: 1
- State three factors that affect the rate of diffusion
State three factors that affect the rate of diffusion (3mks) Temperature Surface area to volume ratio Surface area Thickness of the membrane Type of medium What does a semi-permeable membrane correspond to in an animal cell? (1mk) Cell membrane Virus-free.www.avast.com Post Views: 1
- State the kingdoms to which the following organisms belong
State the kingdoms to which the following organisms belong. (3mks) Plasmodium – Protoctista Bat – Animalia Yeast – Fungi Virus-free.www.avast.com Post Views: 2
- State the functions of the following parts of a light microscope.
State the functions of the following parts of a light microscope. Objective lens (1mk) Magnifies the specimen Diaphragm (1mk) Regulates amount of light passing through to the specimen Virus-free.www.avast.com Post Views: 4
- State the functions of ribosomes and Golgi apparatus
a) Ribosomes Protein synthesis b) Golgi apparatus Post Views: 46
- State the function of the following cell organelles
State the function of the following cell organelles Ribosome (1mk) Site for protein synthesis Lysosome (1mk) Breakdown of worn out organelles Virus-free.www.avast.com Post Views: 1
- State the formula for calculating magnification when using the following
State the formula for calculating magnification when using the following: Virus-free.www.avast.com Post Views: 20
