A-Level Biology (OCR) Cell Structure Exam with Questions and Answers – 100%
Solved
Animal cell - ✔✔✔-Plasma membrane
Rough endoplasmic reticulum
Nucleolus
Nucleus
Smooth endoplasmic reticulum
Lysosomes
Ribosome
Nuclear envelope
Golgi apparatus
Cytoplasm
Mitochondrion
Cell wall - ✔✔✔-DESCRIPTION:
Rigid structure that surrounds plant cells, it's is made mainly of the carbohydrate cellulose
FUNCTION:
Supports plant cells
Centriole - ✔✔✔-DESCRIPTION:
Small, hollow cylinders made of microtubules (tiny protein cylinders). Found in animal cells but
only some plant cells.
FUNCTION:
Involved in the separation if chromosomes during cell division
Chloroplast - ✔✔✔-DESCRIPTION:
, A-Level Biology (OCR) Cell Structure Exam with Questions and Answers – 100%
Solved
A small, flattened structure found in plant cells. It's surrounded by a double membrane, and
also has membranes inside called thylakoids membranes. These membranes are stacked up in
some parts of the chloroplast to form grana. Grana are linked together to form lamellae-thin flat
pieces of thylakoids membrane.
FUNCTION:
The site where photosynthesis takes place. Some parts of photosynthesis happen in the grana
and other parts happen in the stroma (a thick fluid found in chloroplasts)
Cilia - ✔✔✔-DESCRIPTION:
Small, hair like structures found on the surface membrane of sine animal cells. In cross-section
they have an outer membrane and a ring of nine pairs with protein microtubules inside with
two microtubules in the middle.
FUNCTION:
The microtubules allow the cilia to move. This movement is used by the cell to move substances
along the cell surface.
Cytoskeleton - ✔✔✔-DESCRIPTION:
Network of protein threads. In eukaryotic cells the protein threads are arranged as
microfilaments (small solid strands) and microtubules (tiny protein cylinders)
FUNCTION:
1) the microfilaments and microtubules support the cells organelles keeping them in position
2) strengthen the cell and maintain its shape
3) responsible for movement of materials within the cell. Eg. The movement of chromosomes
when they separate during cell division depends on contraction in microtubules in the spindle.
Solved
Animal cell - ✔✔✔-Plasma membrane
Rough endoplasmic reticulum
Nucleolus
Nucleus
Smooth endoplasmic reticulum
Lysosomes
Ribosome
Nuclear envelope
Golgi apparatus
Cytoplasm
Mitochondrion
Cell wall - ✔✔✔-DESCRIPTION:
Rigid structure that surrounds plant cells, it's is made mainly of the carbohydrate cellulose
FUNCTION:
Supports plant cells
Centriole - ✔✔✔-DESCRIPTION:
Small, hollow cylinders made of microtubules (tiny protein cylinders). Found in animal cells but
only some plant cells.
FUNCTION:
Involved in the separation if chromosomes during cell division
Chloroplast - ✔✔✔-DESCRIPTION:
, A-Level Biology (OCR) Cell Structure Exam with Questions and Answers – 100%
Solved
A small, flattened structure found in plant cells. It's surrounded by a double membrane, and
also has membranes inside called thylakoids membranes. These membranes are stacked up in
some parts of the chloroplast to form grana. Grana are linked together to form lamellae-thin flat
pieces of thylakoids membrane.
FUNCTION:
The site where photosynthesis takes place. Some parts of photosynthesis happen in the grana
and other parts happen in the stroma (a thick fluid found in chloroplasts)
Cilia - ✔✔✔-DESCRIPTION:
Small, hair like structures found on the surface membrane of sine animal cells. In cross-section
they have an outer membrane and a ring of nine pairs with protein microtubules inside with
two microtubules in the middle.
FUNCTION:
The microtubules allow the cilia to move. This movement is used by the cell to move substances
along the cell surface.
Cytoskeleton - ✔✔✔-DESCRIPTION:
Network of protein threads. In eukaryotic cells the protein threads are arranged as
microfilaments (small solid strands) and microtubules (tiny protein cylinders)
FUNCTION:
1) the microfilaments and microtubules support the cells organelles keeping them in position
2) strengthen the cell and maintain its shape
3) responsible for movement of materials within the cell. Eg. The movement of chromosomes
when they separate during cell division depends on contraction in microtubules in the spindle.
