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Edexcel GCSE Biology Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed

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In which type of cell would you find a cell wall, chloroplasts and a vacuole? ֎ -:- plant cell What does an animal cell have? ֎ -:- - cytoplasm ֎ - nucleus ֎ - ribosomes ֎ - cell membrane ֎ - mitochondria What does the nucleus do? ֎ -:- contains genetic material that controls the...

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  • August 27, 2024
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Edexcel GCSE Biology Questions & 100%
Correct Answers- Latest Test | Graded A+
| Passed
In which type of cell would you find a cell wall, chloroplasts and a vacuole?


֎ -:- plant cell




What does an animal cell have?


֎ -:- - cytoplasm

֎ - nucleus

֎ - ribosomes

֎ - cell membrane

֎ - mitochondria




What does the nucleus do?


֎ -:- contains genetic material that controls the activities of the cell




What is the cytoplasm?


֎ -:- gel-like substance where most of the chemical reactions happen. It

contains enzymes which control these chemical reactions




What is the cell membrane



26/08/2024 | © Copyright- This work may not be copied for profit.

, Excellence is key | 2024/2025 ~Page |2


֎ -:- holds the cell together and controls what goes in and out




What happens in the mitochondria?


֎ -:- these are where most of the reactions for respiration take place.

Respiration releases energy that the cell needs to work




What happens in the ribosomes?


֎ -:- these are where proteins are made in the cell




What does a bacterial cell NOT have?


֎ -:- a nucleus- genetic material floats in the cytoplasm




What is a yeast cell an example of?


֎ -:- a single cell organism




What does a yeast cell have?


֎ -:- - nucleus

- cytoplasm


- cell membrane


- surrounding cell wall




26/08/2024 | © Copyright- This work may not be copied for profit.

, Excellence is key | 2024/2025 ~Page |3




How is a leaf cell different from a yeast cell?


֎ -:- leaf cells have chloroplasts and a cellulose cell wall. yeast cells have neither




What is the definition of diffusion?


֎ -:- the SPREADING OUT of PARTICLES from an area of HIGH

CONCENTRATION to an area of LOW CONCENTRATION

or


the NET MOVEMENT of PARTICLES down a CONCENTRATION GRADIENT




What substances can diffuse through cell membranes?


֎ -:- small molecules like oxygen, glucose, amino acids and water




What substances can't diffuse through cell membranes?


֎ -:- big molecules like starch and proteins




What are some examples of diffusion?


֎ -:- - the diffusion of oxygen into the cells of the body from the bloodstream as

the cells are respiring (and using up oxygen)




26/08/2024 | © Copyright- This work may not be copied for profit.

, Excellence is key | 2024/2025 ~Page |4


- the diffusion of carbon dioxide into actively photosynthesising plant cells




- the diffusion of simple sugars and amino acids for the gut through cell membranes




When, and in which direction, will diffusion take place in solutions and in gases?


֎ -:- - if two solutions are separated by a cell membrane, particles will move

from a region of high concentration to a region of low concentration




- gases will also diffuse through the air from a region of high concentration to a region of

low concentration




How is a leaf cell adapted to carry out photosynthesis?


֎ -:- - the leaf has mesophyll tissue

- the mesophyll cells contain chloroplasts which can photosynthesise




How are palisade cells adapted for photosynthesis?


֎ -:- - packed will chloroplasts for photosynthesis

- tall shape means a lot of surface area exposed down the side for absorbing carbon dioxide

from the air in the leaf


- they are grouped together at the top of the leaf so that they can absorb more sunlight



26/08/2024 | © Copyright- This work may not be copied for profit.

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