AQA GCSE Combined Science 9-1 - B1 - B4 Updated
Questions and Verified Answers/ Complete Solutions
with Rationales |Get It 100% Accurate!! Already
Passed!!
VERIFIED ANSWERS Terms in this set (182) QUESTIONS
-cell membrane Describe what eukaryotic cells have in
-cytoplasm common
-Genetic material enclosed in a nucleus
-cytoplasm Describe what prokaryotic cells have in
-A cell membrane surrounded by a cell wall common
-The genetic material is not enclosed in the
nucleus
A single DNA loop, there may be one or more Plasmids are found in prokaryotic cells.
small rings on this DNA loop What are they?
-nucleus Structures inside animal cells:
-cytoplasm
-a cell membrane
, -mitochondria
-ribosomes
-nucleus Structures inside plant cells:
-cytoplasm
-a cell membrane
-mitochondria
-ribosomes
-chloroplasts
-permanent vacuole filled with cell sap
-cell wall made of cellulose
Lots of mitochondria on their tails to help them How are sperm cells designed for their
swim job?
Long for sending messages around the body How are nerve cells designed for their
jobs?
can shorten to be able to move bones How are muscle cells designed for their
jobs?
large surface area so they can absorb lots of How are plant root hair cells designed
water for their job?
xylem are dead tubes able to carry water up the How is xylem tissue in plants designed
stems of plants. for its job?
phloem cells are living tubes able to carry How is phloem tissue in plants
minerals around the plant designed for their job?
cells changing to form different types of cells. What does cell differentiation mean?
, at an early stage of growth When do animals cells differentiate?
plant cells can differentiate throughout life How are plants cells different form
animal cells when it comes to
differentiation?
repair and replacement purpose of cell division in animal cells?
a specialized cell what do we call a cell once a cell
differentiates?
higher magnification and resolving power why are electron microscopes better
than light microscopes?
you can study cells in much finer detail Why might someone study a cell using
an electron microscope?
magnification = size of image/size of object equation for working out the
magnification of a microscope?
1/1,000,000th of a meter what is a micrometer?
1/1,000,000,000th of a meter what is a nanometer?
-genetic material is doubled then divided into In simple terms, outline the process of
two identical cells. mitosis
-increase the number of ribosomes and
mitochondria
-The DNA replicates to form two copies of
each chromosome
-In mitosis one set of chromosomes is pulled to
each end of the cell and the nucleus divides
Questions and Verified Answers/ Complete Solutions
with Rationales |Get It 100% Accurate!! Already
Passed!!
VERIFIED ANSWERS Terms in this set (182) QUESTIONS
-cell membrane Describe what eukaryotic cells have in
-cytoplasm common
-Genetic material enclosed in a nucleus
-cytoplasm Describe what prokaryotic cells have in
-A cell membrane surrounded by a cell wall common
-The genetic material is not enclosed in the
nucleus
A single DNA loop, there may be one or more Plasmids are found in prokaryotic cells.
small rings on this DNA loop What are they?
-nucleus Structures inside animal cells:
-cytoplasm
-a cell membrane
, -mitochondria
-ribosomes
-nucleus Structures inside plant cells:
-cytoplasm
-a cell membrane
-mitochondria
-ribosomes
-chloroplasts
-permanent vacuole filled with cell sap
-cell wall made of cellulose
Lots of mitochondria on their tails to help them How are sperm cells designed for their
swim job?
Long for sending messages around the body How are nerve cells designed for their
jobs?
can shorten to be able to move bones How are muscle cells designed for their
jobs?
large surface area so they can absorb lots of How are plant root hair cells designed
water for their job?
xylem are dead tubes able to carry water up the How is xylem tissue in plants designed
stems of plants. for its job?
phloem cells are living tubes able to carry How is phloem tissue in plants
minerals around the plant designed for their job?
cells changing to form different types of cells. What does cell differentiation mean?
, at an early stage of growth When do animals cells differentiate?
plant cells can differentiate throughout life How are plants cells different form
animal cells when it comes to
differentiation?
repair and replacement purpose of cell division in animal cells?
a specialized cell what do we call a cell once a cell
differentiates?
higher magnification and resolving power why are electron microscopes better
than light microscopes?
you can study cells in much finer detail Why might someone study a cell using
an electron microscope?
magnification = size of image/size of object equation for working out the
magnification of a microscope?
1/1,000,000th of a meter what is a micrometer?
1/1,000,000,000th of a meter what is a nanometer?
-genetic material is doubled then divided into In simple terms, outline the process of
two identical cells. mitosis
-increase the number of ribosomes and
mitochondria
-The DNA replicates to form two copies of
each chromosome
-In mitosis one set of chromosomes is pulled to
each end of the cell and the nucleus divides
