Biology- Cells and organisation
0.0 / 5
- Created by: Kitsune
- Created on: 02-07-16 07:33
Define cell
The smallest unit of a living organism capable of independent functions and produced from a parent cell
1 of 38
Define tissue
A group of cells with similar structures working together to perform specific functions
2 of 38
Define organ
A group of tissues working to perform specific functions
3 of 38
Define organ system
A group of organs with related functions working to perform body functions
4 of 38
To what do animal cell features relate to?
Heterotrophic nutrition and high metabolic activity
5 of 38
To what do plant cell features relate to?
Autotrophic nutrition
6 of 38
Plant and animal cells have common features which relate to what?
Maintaining the characteristics of life
7 of 38
Why are plant and animal cells different?
Different lifestyle and different methods of nutrition
8 of 38
What does the absence of a cell wall mean for animal cells?
They are very irregular in shape
9 of 38
Why are animal cells small?
The amount of cytoplasm that can be controlled by the uncle is limited
10 of 38
What does the presence of a cell wall mean for plant cells?
They are regular in shape
11 of 38
Why are plant cells large?
Because of the vacuole
12 of 38
What are the features of an animal cell?
Cytoplasm, cell surface membrane, secretory vesicles, vacuoles, nucleus
13 of 38
What do the secretory vesicles do?
They contain cell products such as hormones or enzymes
14 of 38
Why is the cytoplasm of an animal cell denser?
More organelles and more dissolved substances
15 of 38
Talk about vacuoles in animal cells
They are small and temporary. They can be involved with digestion or with excretion.
16 of 38
What is glycogen in animal cells?
Storage form of carbohydrates
17 of 38
What does the nucleus do?
It contains genetic material which makes up genes on the chromosomes and controls all the activities in the cell
18 of 38
Where are the ribosomes?
On the rough endoplasmic reticulum
19 of 38
What does the cell surface membrane do?
It controls the entry and exit of dissolved substances and separates the cell from its surroundings
20 of 38
Where do chemical reactions go on in cells?
In organelles
21 of 38
Where does aerobic respiration occur?
In mitochondria
22 of 38
What do chloroplasts do?
They contain the pigment chlorophyll and the enzymes for production of glucose by photosynthesis
23 of 38
What are the features of plant cells?
Cell surface membrane, cytoplasm, nucleus, cellulose cell wall, large permanent vacuole, chloroplasts
24 of 38
What does the large permanent vacuole do?
Contains water which is necessary to provide turgor pressure and may store ions and molecules
25 of 38
What is starch in plant cells?
A storage form of carbohydrates
26 of 38
What does the cellulose cell wall do?
Provides structural support, protects against damage caused by intake of water
27 of 38
Is the cell wall permeable?
Freely permeable
28 of 38
What do all cells, except prokaryotes, have?
Mitochondria and rough endoplasmic reticulum
29 of 38
Why do some cells require a lot of mitochondria?
They have high metabolic rates
30 of 38
How to find the actual length of a cell?
Measured length divided by magnification
31 of 38
What is the structure of a ciliated cell and how does it relate to its function?
Layer of tiny hairs=> movies mucus in trachea and bronchi
32 of 38
What is the structure of a root hair cell and how does it relate to its function?
Long root=> absorption of minerals and water
33 of 38
What is the structure of a xylem vessel cell and how does it relate to its function?
Lignin, no cytoplasm=> transports water and supports the plant
34 of 38
What is the structure of a palisade mesophyll cell and how does it relate to its function?
Many chloroplasts=> photosynthesis
35 of 38
What is the structure of a motor nerve cell and how does it relate to its function?
Axon, fatty sheath, branched endings=> conduction of nerve impulses
36 of 38
What is the structure of a red blood cell and how does it relate to its function?
No nucleus, filled with haemoglobin, flexible=> transport of oxygen
37 of 38
What is the structure of a sperm cell and how does it relate to its function?
Flagela, many mitochondria, enzymes on the acrosome=> reproduction
38 of 38
Other cards in this set
Card 2
Front
Define tissue
Back
A group of cells with similar structures working together to perform specific functions
Card 3
Front
Define organ
Back
Card 4
Front
Define organ system
Back
Card 5
Front
To what do animal cell features relate to?
Back
Related discussions on The Student Room
- Is a myofibril an organelle »
- Viruses »
- Grade Growth Chronicles | From C's to A's (23-24) »
- Biochemistry Personal Statement Example »
- Biology paper 1 2023 »
- Unofficial Mark scheme: AQA GCSE Biology Paper 1 Triple Higher Tier 16th May 2023 »
- AQA A-Level Biology Paper 3 [21st June 2023] Exam Chat »
- Biology question molecules »
- Why r bicarbonate ions removed from red blood cells »
- mark scheme biology 2022 gcse combined science higher paper 1 »
Similar Biology resources:
0.0 / 5
4.0 / 5 based on 7 ratings
3.5 / 5 based on 2 ratings
0.0 / 5
0.0 / 5
0.0 / 5
2.0 / 5 based on 1 rating
0.0 / 5
5.0 / 5 based on 4 ratings
4.0 / 5 based on 1 rating
Comments
No comments have yet been made