The tip of a growing pollen tube releases digestive enzymes into the style. Why

enzymes break down the pectin in the middle lamella

What happens during telophase?

Nuclearenvelope & centrioles reform.spindle fibres breakdown

How is a sperm cell specialised?

Centriole, nucleus, mitochondria.

What happens during interphase?

Normal metabolic process of cell continue. DNA is replicated

What is the definition of a zygote?

A diploid cell resulted from the fusion of 2 haploid gametes

What is the acrosomal reaction?

igestion of zona pellucida, allowing sperm to contact egg

How does meiosis create genetic diversity? (2 options for a correct answer)

Crossing over, Independent assortment

The root tip squash practical is to investigate Mitosis, what are the two solutions required?

Hydrochloric acid and toluidine blue

Which is organized from most simple to most complex?

ribosome - nerve cell - nerve tissue - brain -nervous system

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Edexcel Biology AS Unit 2: Topic 3 - Mitosis, Meiosis & Plant Fertilisation

18 termsStudBud Administration87 plays

Flashcards18 cardsFPractice quizPHost liveL

Questions 18

Answers

1
Which of these features are part of a ova?
Axial filament
Oocyte cell membrane surface
A diploid polar body
2
The tip of a growing pollen tube releases digestive enzymes into the style. Why
enzymes used as a catalyst to speed up the growing process
enzymes break down the pectin in the middle lamella
enzymes digest the protein, allowing the plant to repair
3
What is cytokinesis?
Division of the nucleus.
Replication of a chromosome.
Duplication of the cytoplasm.
Division of the cytoplasm.
4
What is produced through meiosis?
Digestive enzymes
Tissue cells.
Red blood cells.
Gametes.
5
What happens during telophase?
DNA synthesis- DNA replication
Chromosomes coil and nuclear envelope disappears
Chromatids are pulled apart by spindle fibres
Nuclearenvelope & centrioles reform.spindle fibres breakdown
6
Skin cells and eye cells perform different functions but they have the same
size
concentration of salts
number of mitochondria
DNA
7
Which of these is not what mitosis is important for?
Immune responses.
Replacement of cells and repair of tissues.
Production of gametes.
Growth
8
How is a sperm cell specialised?
Mitochondria, ribosomes, nucleus.
Flagella, mitochondria, centriole.
Centriole, nucleus, mitochondria.
Golgi apparatus, nucleus, flagella.
9
Which of the following number in the image below demonstrates telophase?
2
1
4
3
10
Interphase is split into three phases, What happens during the “S” phase?
The chromosomes are duplicated
A checkpoint- ensuring the cell is ready to undergo mitosis
The cell splits
Cell increases in size
11
What happens during interphase?
Energy supplied from respiration moved the chromatids apart
Normal metabolic process of cell continue. DNA is replicated
nuclear envelope breaks down
Chromosomes coil up
12
What is the primary function of Mitosis?
Conjoining cells
Sexually reproducing offspring
Cell modification.
Cell division
13
What is the definition of a zygote?
A mature haploid male or female germ cell
A non-specialised cell
A diploid cell resulted from the fusion of 2 haploid gametes
A formation of single body units to create a protein.
14
What is the acrosomal reaction?
The fusion of the sperm and egg plasma membrane
igestion of zona pellucida, allowing sperm to contact egg
The entry of the sperm nucleus into the egg
digestion of the acrosome by the sperm when it meets an egg
15
How does meiosis create genetic diversity? (2 options for a correct answer)
Crossing over
DNA synthesis
Independent assortment
Nuclear division
16
The root tip squash practical is to investigate Mitosis, what are the two solutions required?
Sulfuric acid and methylated spirits
Hydrochloric acid and toluidine blue
Hydrochloric acid and iodide blue
Hydrochloric acid and crystal violet
17
Which of the following image is metaphase?
A
B
C
18
Which is organized from most simple to most complex?
nerve tissue - nerve cell - ribosome - brain -nervous system
nerve cell - ribosome - nerve tissue - brain -nervous system
ribosome - nerve cell - nerve tissue - brain -nervous system
brain - nerve cell - ribosome - nervous system -nerve tissue

Edexcel Biology AS Unit 2: Topic 3 - Mitosis, Meiosis & Plant Fertilisation Flashcards | StudBud

Edexcel Biology AS Unit 2: Topic 3 - Mitosis, Meiosis & Plant Fertilisation

18 termsStudBud Administration87 plays

Edexcel Biology AS Unit 2: Topic 3 - Mitosis, Meiosis & Plant Fertilisation

Flashcards18 cardsFPractice quizPHost liveL

Questions 18

Answers

1
Which of these features are part of a ova?
Axial filament
Oocyte cell membrane surface
A diploid polar body
2
The tip of a growing pollen tube releases digestive enzymes into the style. Why
enzymes used as a catalyst to speed up the growing process
enzymes break down the pectin in the middle lamella
enzymes digest the protein, allowing the plant to repair
3
What is cytokinesis?
Division of the nucleus.
Replication of a chromosome.
Duplication of the cytoplasm.
Division of the cytoplasm.
4
What is produced through meiosis?
Digestive enzymes
Tissue cells.
Red blood cells.
Gametes.
5
What happens during telophase?
DNA synthesis- DNA replication
Chromosomes coil and nuclear envelope disappears
Chromatids are pulled apart by spindle fibres
Nuclearenvelope & centrioles reform.spindle fibres breakdown
6
Skin cells and eye cells perform different functions but they have the same
size
concentration of salts
number of mitochondria
DNA
7
Which of these is not what mitosis is important for?
Immune responses.
Replacement of cells and repair of tissues.
Production of gametes.
Growth
8
How is a sperm cell specialised?
Mitochondria, ribosomes, nucleus.
Flagella, mitochondria, centriole.
Centriole, nucleus, mitochondria.
Golgi apparatus, nucleus, flagella.
9
Which of the following number in the image below demonstrates telophase?
2
1
4
3
10
Interphase is split into three phases, What happens during the “S” phase?
The chromosomes are duplicated
A checkpoint- ensuring the cell is ready to undergo mitosis
The cell splits
Cell increases in size
11
What happens during interphase?
Energy supplied from respiration moved the chromatids apart
Normal metabolic process of cell continue. DNA is replicated
nuclear envelope breaks down
Chromosomes coil up
12
What is the primary function of Mitosis?
Conjoining cells
Sexually reproducing offspring
Cell modification.
Cell division
13
What is the definition of a zygote?
A mature haploid male or female germ cell
A non-specialised cell
A diploid cell resulted from the fusion of 2 haploid gametes
A formation of single body units to create a protein.
14
What is the acrosomal reaction?
The fusion of the sperm and egg plasma membrane
igestion of zona pellucida, allowing sperm to contact egg
The entry of the sperm nucleus into the egg
digestion of the acrosome by the sperm when it meets an egg
15
How does meiosis create genetic diversity? (2 options for a correct answer)
Crossing over
DNA synthesis
Independent assortment
Nuclear division
16
The root tip squash practical is to investigate Mitosis, what are the two solutions required?
Sulfuric acid and methylated spirits
Hydrochloric acid and toluidine blue
Hydrochloric acid and iodide blue
Hydrochloric acid and crystal violet
17
Which of the following image is metaphase?
A
B
C
18
Which is organized from most simple to most complex?
nerve tissue - nerve cell - ribosome - brain -nervous system
nerve cell - ribosome - nerve tissue - brain -nervous system
ribosome - nerve cell - nerve tissue - brain -nervous system
brain - nerve cell - ribosome - nervous system -nerve tissue