YEAR 9 – Topic 1 – Characteristics of Life, Organisation and Cells Flashcards
What does the M in MRS C GREN stand for?
Movement
What does the R in MRS C GREN stand for?
Respiration
What does the S in MRS C GREN stand for?
Sensitivity
What does the C in MRS C GREN stand for?
Control
What does the G in MRS C GREN stand for?
Growth
What does the 2nd R in MRS C GREN stand for?
Reproduction
What does the E in MRS C GREN stand for?
Excretion
What does the N in MRS C GREN stand for?
Nutrition
What is an organelle
An organelle is part of a cell
The organelles in an animal cell are… (5 in total)
– Nucleus – Cytoplasm – Cell Membrane – Mitrochondria – Ribosomes
The organelles in an plant cell are… (8 in total)
– Nucleus – Cytoplasm – Cell Membrane – Vacuole – Chloroplasts – Cell Wall – Mitrochondria – Ribosomes
What does the nucleus do?
Controls the cell and contains DNA
That does the cytoplasm do?
It is a substance that supports organelles and it contains lots of enzymes.
What. Does the cell membrane do?
Gives the cell shape and structural support.
What does the vacuole do?
It is a cavity contains sugar and sap.
What does the cell wall do?
It gives the cell structure.
What do the chloroplasts do?
They are packets containing chlorophyll. Photosynthesis happens here.
What do the mitochondria do?
They are large organelles that are the site of aerobic respiration.
What do the ribosomes do?
They are small but mighty! They synthesise proteins.
What am I…?
I control the cell and contain DNA
The Nucleus
What am I…?
I am a jelly-like substance that supports organelles and contains lots of enzymes.
Cytoplasm
What am I…?
I give the cell shape and structural support.
Cell membrane
What am I…?
I give the cell structure?
Cell wall
What am I…?
I am a vanity containing sugars and sap
Vacuole
What am I…?
I am where photosynthesis happens and I contain chlorophyll.
Chloroplasts
What am I…?
I am a large organelle that. Is where aerobic respiration happens.
Mitochondria
What am I…?
I am small but mighty! I synthesise proteins.
Ribosomes
What is a cell?
A simple building block of life.
What is a tissue?
A group of cells of a similar structure that perform the shared function.
What is an organ?
A group of tissues that work together to perform a function.
What is an organ system?
A group of organs that. Work together to keep. The animal alive.
Some different types of cells are…
– Neurone
– Red blood cell
– Muscle cell
Some different types of tissues are…
– Nerves
– Muscle
– Xylem
Some different types of organs are…
– Brain
– Heart
– Stomach
Some different types of organ systems are…
– Digestive
– Nervous
– Panchreatic
What is the difference between plant and animal cells?
Animal cells don’t have…
– Chloroplasts
– Vacuoles
– Cell walls
What is a specialised cell?
A cell that has structural adaptation to perform a specific function in the organism.
What are the advantages of using stem cells in medicine?
- They can turn into any type of cell
- They can help fight and cure diseases
- They can replace faulty cells
What are the disadvantages of using stem cells in medicine?
- If the cells are contaminated in the lab the patient can become seriously ill
- Some are against using stem cells as embryos are potential life and getting rid of embryos afterwards is as bad as killing
