Biology Unit 1 Key Words
Biology key words from Unit 1
4.0 / 5 based on 1 rating
- Created by: Brandie Wilson
- Created on: 11-03-13 19:10
Specialised tissue in the septum of the heart that conducts the electrical stimulus from the AV node to the ventricles.
Purkyne tissue
1 of 38
Final phase of mitosis. Two new nuclear envelopes form around the two new nuclei.
Telophase
2 of 38
Involved in mitosis, cytokinesis and movement of vesicles within cells. Have a diameter of about 24nm.
Microtubules
3 of 38
The process of removing materials from the cell by fusing vesicles containing the material with the cell surface membrane.
Exocytosis
4 of 38
Movement of substances across membranes against their concentration gradient, requiring the use of energy in the form of ATP. Usually involves transport proteins.
Active transport
5 of 38
A protein pore that spans a membrane, through which ions and water-soluble molecules may pass.
Channel protein
6 of 38
How much more air can be breathed in over and above the normal tidal volume when you take a big breath.
Inspiratory reserve volume
7 of 38
The passive movement of molecules across membranes down their concentration gradient, which is aided by transport protein molecules.
Facilitated diffusion
8 of 38
The pathway taken by water in plants as it passes from cell to cell via the cell cytoplasm and vacuole.
Vacuolar pathway
9 of 38
Detachment of the plasma membrane from the wall as the cytoplasm shrinks when water is lost from a plant cell.
Plasmolysis
10 of 38
Valves between the ventricles and the main arteries leading out of the heart, which prevent the backflow of blood.
Semilunar valves
11 of 38
Processes that lead to communication and coordination between cells.
Cell signalling
12 of 38
The largest volume of air that can be moved into and out of the lungs in any one breath.
Vital capacity
13 of 38
The region of a chromosome where two sister chromatids are joined together, and where the spindle fibre attaches during cell division.
Centromere
14 of 38
The proportion of total pressure provided by a particular gas as a part of a mixture of gases.
Partial pressure
15 of 38
A protein found in membranes, which is capable of carrying a specific molecule or ion through the membrane by active transport or facilitated diffusion.
Carrier protein
16 of 38
The movement of water from a region of high water potential to a region of lower water potential across a partially permeable membrane.
Osmosis
17 of 38
The route taken by water between the cells or through the cell walls in a plant.
Apoplast pathway
18 of 38
The amount of oxygen in the air expressed as the pressure created by the presence of oxygen, expressed in kilopascals.
Oxygen tension
19 of 38
A patch of tissue in the septum of the heart that conducts the electrical stimulus from the atria in the heart through to the purkyne tissue.
Atrioventricular node
20 of 38
The route taken by water through the cytoplasm of cells in a plant
Symplast pathway
21 of 38
Method of cell division in bacteria
Binary fission
22 of 38
The volume of air moved in and out of the lungs with each breath when at rest.
Tidal volume
23 of 38
A fine strand of cytoplasm that links the protoplasm of adjacent plant cells through a thin area of wall called a pit.
Plasmodesma
24 of 38
In mitosis, the stage when the newly separated chromatids are pulled towards opposite poles of the nuclear spindle.
Anaphase
25 of 38
The volume of air that always remains in the lungs.
Residual volume
26 of 38
How much more can be breathed out over and above the amount that is breathed in a tidal volume breath.
Expiratory reserve volume
27 of 38
The phase of mitosis where the chromosomes become visible as a pair of sister chromatids joined at the centromere.
Prophase
28 of 38
String-like tendons used to attach the atrioventricular valves of the heart to the sides of the ventricle wall.
Tendinous cords
29 of 38
Nuclear division that results in the formation of cells that are genetically identical to the parent cell.
Mitosis
30 of 38
A ***** of waterproof material (suberin) in the cell walls of root epidermis cells. It blocks the apoplast pathway.
Casparian *****
31 of 38
Trace showing the electrical activity of the heart muscle during a cycle.
Electrocardiagram
32 of 38
Chromosomes that have the same genes at the same loci.
Homologous
33 of 38
The phase of mitosis where the chromosomes line up at the equator of the spindle.
Metaphase
34 of 38
A cell found in the phloem tissue through which sap containing sucrose is transported.
Sieve tube element
35 of 38
A measure of the ability of water molecules to move freely in a solution.
Water potential
36 of 38
The rupturing of red blood cells when they are placed in a solution with a higher water potential and water enters by osmosis.
Haemolysis
37 of 38
The phase of the cell cycle where synthesis of new DNA and organelles takes place.
Interphase
38 of 38
Other cards in this set
Card 2
Front
Final phase of mitosis. Two new nuclear envelopes form around the two new nuclei.
Back
Telophase
Card 3
Front
Involved in mitosis, cytokinesis and movement of vesicles within cells. Have a diameter of about 24nm.
Back
Card 4
Front
The process of removing materials from the cell by fusing vesicles containing the material with the cell surface membrane.
Back
Card 5
Front
Movement of substances across membranes against their concentration gradient, requiring the use of energy in the form of ATP. Usually involves transport proteins.
Back
Related discussions on The Student Room
Similar Biology resources:
0.0 / 5
3.5 / 5 based on 2 ratings
0.0 / 5
0.0 / 5
5.0 / 5 based on 1 rating
Teacher recommended
0.0 / 5
0.0 / 5
4.5 / 5 based on 2 ratings
0.0 / 5
3.0 / 5 based on 1 rating
Comments
No comments have yet been made