Proteins, Minerals and vitamins, Carbohydrates, Fats
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What are enzymes?
Enzymes break down large molecules
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What enzyme breaks down Carbohydrate and where is it found in the body?
Amaylase which is found in the Pancreas, Small intestine and Saliva glands
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What enzyme breaks down proteins and where is it found in the body?
Protease which is found in pancreas, small intestine and stomach
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What enzyme breaks down fats and where is it found in the body?
Lipase which is found in the pancreas, and small intestine
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What is diffusion?
Diffusion is the movement of particles from an area of high concentration to an area of low concentration
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What is Osmosis?
Osmosis is the movement of water from an area of high concentration to an area of low concentration across a partially permeable membrane
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What is sexual reproduction?
Sexual reproduction involves two parents. the parents have to have sex organs which produce sex cells or gamates
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What is Asexual reproduction?
Asexual reproduction only needs one individual. this method produces off-spring identical to the parent having exactly the same genes as parent. Also known as a clone
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What does blood do?
Blood carries oxygen though the blood stream
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How are red blood cells adapted to their roll?
Red blood cells have a biconcave shape and this adds surface area
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Why do red blood cells have no nucleus?
because having no nucleus allows extra space for carrying oxygen
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What are the components of blood?
Plasma, palates, red blood cell, white blood cell
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what is the circulatory system?
The circulatory system is made up of two interweaving loops and the heart is in the center of the system
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What is the heart?
The heart is a pump that circulates blood around the body
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What valve is on the right side of the heart?
On the right side of the heart there is a tripusdid valve
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What valve is on the left side of the heart?
On the left side of the heart there is a bicuspid valve
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What valve is on both sides of the heart?
On both sides of the heart there are Semi-lunar valves
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What do plant roots do?
plant roots grow towards moisture and towards gravity
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what do plant shoots do?
Plant shoots grow towards light and against gravity
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give to examples of fungi?
Two examples of fungi are yeast and muccor
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State the features of a virus?
A virus has small particles, it can only reproduce in living organisms and it can affect all living organisms.
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State the features of a bacteria?
Bacteria have no nucleus, they feed of other bacterium and they are single celled.
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State the features of a Protoctists ?
Protoctists are tiny , they are also single celled and some of them have chloroplasts.
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What is egestion?
egestion is the removal of undigested food products from the body
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What is Absorption?
Absorption is the Passing of small food molecules through walls of small intestine and around the body
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what is assimulation?
Assimilation is the transformation of food into substances and materials inside body that help body to grow and function
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what is Homeostasis?
Homeostasis is the maintenance of a constant internal environment. The nervous system and hormones are responsible for this.
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What is a dominant Allele?
A dominant allele is the type that expresses itself at the expense of an alternate allele
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what is a recessive allele?
A recessive allele the type whose expression is suppressed in the presence of a dominant allele
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What is a chromosome?
a chromosome is a structure made of DNA which has small sections called genes
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What is a punnet square?
a punnet square is a diagram that is used in the study of inheritance to show the predicted genotypic results of random fertilization in genetic crosses between individuals of known genotype
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