Science Quiz / BY2.4 and BY2.5

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Can you name the BY2.4 and BY2.5?

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QuestionAnswer
This method or reproduction produces large numbers of individuals having an identical genetic composition.
This method of reproduction usually involves two parents, it is less rapid than asexual and it produces genetically different offspring.
Sexual reproduction increases...
Living organism's body cells are...
Living organism's sex cells are called...
The process by which body cells are made.
The process by which sex cells are made.
When a haploid sperm fuses with a haploid egg, it produces this.
The male gamete is small and....
Many aquatic organisms discharge their gametes into....
This increases the chance that many eggs will not encounter....
This method of fertilisation is known as....
In most terrestrial animals, fertilisation is...
The type of eggs that reptiles and birds have.
This type of egg has a....
This is surrounded by a membrane outside which is a.....
In general, the more parental care provided....
An animal with only 1 type of sexual organ is called...
Reduced genetic variability is a disadvantage of this type organism.
Name an example of the above.
In insects, during the development of the zygote, the intermediate form is called.....
Insects shed this as they grow.
Grasshoppers undergo this before they reach full size.
Grasshoppers develop from....
Butterflies undergo this before they reach adult size.
They have an additional stage in their growth called....
Living organisms that can make their own food are called....
Name the two types of autotrophic nutrition.
Heterotrophs cannot make their own....
Nearly all animals are.....
Food is broken down by the process of....
Animals that feed solely on plant material are termed....
Animals that feed on other animals are called....
Animals that feed on dead and decaying material are called....
All fungi and some bacteria are known as...
These do not have a....
They secrete......outside the body.
They then absorb the...........across the cell membrane.
This process is known as.....
Microscopic saprophytes are called.....
An organism that feeds on another living organism is called a....
Give an example of a parasite.
QuestionAnswer
Mutualism is also known as....
Cows and sheep have mutualistic bacteria which live in the....
This bacteria breaks down...
Name the 4 functions of the digestive system
The first step involves taking food into the body through the....
The second step is the breakdown or large insoluble food molecules into.....
Mechanical digestion is achieved by...
This is followed by the...
The chemical action of digestion is done by...
These are secreted by glands inside the gut or glands located outside the gut such as....
The third step is the...
The last step is the elimination of....
The gut wall consists of.....
A gut cavity is also called....
The outer layer of the gut wall.
This is made up of....
Name one of the functions of this layer.
The muscle layer consists of 2 layers of muscle......
The two types of muscle are called the....
These muscles cause....
This is called....
This function......
Behind the ball of food the circular muscles....
and the longitudinal muscles....
The sub-mucosa contains.....
These take away.....
The innermost layer of the gut is called the.......
In some regions of the gut it......
Name three examples of glands found outside the gut. (Alphabetical order)
Name where each of the previous glands act, respectively.
Name what each gland in question 71 secretes respectively.
Glands in the form of cells in the submcosa secrete mucus into the....
Glands in the form of cells in the mucosa can be found in the small intestine at.......
Another example of this type of gland are called....
These are found in the....
They secrete.....
Digestive enzymes that break down carbohydrates, fats and proteins are known as.....
They catalyse the .....
Carbohydrates are first broken down into........and then into........
The enzyme........hydrolyses startch into......
A second enyme called........ is needed to break this down into glucose.
Proteins are broken down into....., then........and finally into........
QuestionAnswer
The general name given to the protein digesting enzyme is.......
These hydrolyse peptide bonds within the protein molecule.
These hydrolyse peptide bonds at the end of these shorter polypeptides.
Fats are broken down into.....
This is done by the enzyme.....
Saliva contains.....
Saliva is slightly....
Saliva is important for.....
The pH of stomach acid is.....
This helps kill any......in the food.
Gastric juice also contains......
Mucus is important in forming a.....
The small intestine is divided into two regions called.....
Bile is stored in....
It contains no enzymes but the bile salts are important in.....
This is achieved by lowering the.....
Pancreatic juice is secreted from the.....
It contains the enzymes.....(Alphabetical order)
The ileum is well adapted for.....
On the surface of the villi are epithelial cells with....
Epithelial cells contain large numbers of....
These are absorbed across the epithelium of the villi.
These and dipeptides require.........for absoption.
Dipeptides are then digested............into amino acids.
Fatty acids and glycerol are passed into the.....
The large intestine is divided into....
Digestion of plant material is.....
Humans have.........different types of teeth.
Humans have 8......
Humans have 4.......
10 large flat teeth called........
Herbivores have incisors on the....only.
They cut against a..........
This is the gap that separates front teeth from the side teeth or premolars.
The moves in a...........plane.
The jaw muscles in carnivores are.......
There is no........movement of the jaw.
This could cause the jaw to become...........when dealing with prey.
Cows and sheep lack the ability to produce....
Ruminants have a 'stomach' which is made of.......
On the head of the tapeworm are......
Tapeworms must have a protective body convering to protect them from.....

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