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WorksheetsBIOLOGY QUIZ
Total questions: 15
Worksheet time: 8mins
Enzymes are
carbohydrates that are used up in a chemical reaction
carbohydrates that have the ability to catalyse reaction
proteins that are used up in chemical reaction
proteins that have the ability to catalyse reaction
Enzymes are added to biological washing powders to remove stains. Which would be the most effective in removing chocolate milk stains?
amylase and maltase
amylase and catalase
protease and lipase
protease and catalase
What general name is given to a group of similar cells working together to do a particular job?
cell system
tissue
organ
organ system
The process by which water enters the root hair cell is called
active transport
diffusion
osmosis
phagocytosis
which statement is true of active transport in plants?
it involves the random movement of molecules
it depends on the availability of oxygen
it relies on the kinetic energy of molecules
it eventually achieves equilibrium
Which form of carbohydrates is usually stored in the human body?
glucose
glycogen
glycerol
starch
Cellular respiration is best described as
a process by which sugars and other substances are oxidised to release chemical energy
a process by which sugar is produced from carbon dioxide and water in the presence of light and chloroplasts
a process by which carbon dioxide is inhaled and oxygen is exhaled
a process by which oxygen is inhaled and carbon dioxide is exhaled
A fruitfly has 4 pairs of chromosomes. How many chromosomes will be found in the sperm of a fruitfly?
2
4
8
16
Meiosis occurs during production of human gametes. The number of chromosomes present before and after meiosis is best represented by
n -> n
n -> 2n
2n -> n
2n -> 2n
What happens to the chromatin in Prophase 1 of meiosis?
they attach to spindle fibres
they shorten and become visible
they are pulled towards opposite poles
they decondense and become threadlike
Which of the following correctly lists all the nitrogenous bases in DNA?
Adenine, cytosine, guanine, uracil
Adenine, cytosine, guanine, thymine
Alanine, cytosine, guanine, thymine
Alanine, cytosine, guanine, uracil
The diploid number of the mouse chromosome is 40. The number of chromosomes present in a body cell of a mouse is
10
20
40
80
Mitosis occurs during the growth of human tissues. The number of chromosomes present in human cells before and after mitosis is best represented by
n -> n
n -> 2n
2n -> n
2n -> 2n
The similarity between DNA and the messenger RNA is that
they are made up of nucleotides
they have the same nitrogenous bases
their shapes are double helical
they are only found in the nucleus
Which is a TRUE statement for fermentation?
occurs in cytoplasm and mitochondria
occurs in mitochondria only
glucose oxidised into carbon dioxide and water
glucose oxidised into ethanol and carbon dioxide or lactic acid
