Test
AQA GCSE Biology Unit 3.1
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (20)
1What is osmosis?
- AThe diffusion of water from within a cell to outside it
- BThe diffusion of water from a concentrated solution to a dilute solution
- CThe diffusion of water from a dilute solution to a concentrated solution
2Which two words describe a situation in which the concentration of water outside the cell is greater than within it?
- AHypertonic
- BIsotonic
- CHypotonic
- DTurgid
- EFlaccid
- FPlasmolysing
3Which two words describe a situation in which the concentration of water outside the cell is equal to within it?
- AHypertonic
- BIsotonic
- CHypotonic
- DTurgid
- EFlaccid
- FPlasmolysing
4Which two words describe a situation in which the concentration of water outside the cell is less than within it?
- AHypertonic
- BIsotonic
- CHypotonic
- DTurgid
- EFlaccid
- FPlasmolysing
5True or false? Active transport does not require an input of energy.
- AVerdadero
- BFalso
6True or false? Cells which carry out active transport have transport proteins and lots of mitochondria.
- AVerdadero
- BFalso
7Which of these do plants absorb by active transport?
- AMineral ions
- BWater
- CCarbon dioxide
- DLight
8True or false? A sports drink can be easily replicated by adding a little salt to dilute orange squash.
- AVerdadero
- BFalso
9Which part of the lung is responsible for gas exchange?
- ATrachea
- BBronchi
- CBronchioles
- DAlveoli
10Which of these are adaptations of alveoli designed to increase the rate of exchange?
- ASpherical shape for large surface area
- BTransport proteins in alveolus cells
- CFilm of moisture to transport dissolved gases
- DGood blood supply
- EThin walls (only a single cell thick) to provide a short diffusion pathway
- FLots of mitochondria to raise temperature by respiration for quicker diffusion
11Which of these processes occur during inhalation?
- ADiaphragm muscles contract and flatten
- BLiver pushes up diaphragm into domed shape
- CExternal intercostal muscles contract
- DInternal intercostal muscles contract
- ERibcage moves up and out
- FRibcage moves in and down
- GThoracic volume increases and pressure decreases
- HThoracic volume decreases and pressure increases
12Which of these processes occur during exhalation?
- ADiaphragm muscles contract and flatten
- BLiver pushes up diaphragm into domed shape
- CExternal intercostal muscles contract
- DInternal intercostal muscles contract
- ERibcage moves up and out
- FRibcage moves in and down
- GThoracic volume increases and pressure decreases
- HThoracic volume decreases and pressure increases
13Which type of breathing aid is the iron lung?
- APositive pressure
- BNegative pressure
14True or false? The surface area of the small intestine is about 200-300 square metres.
- AVerdadero
- BFalso
15What is a villus?
- AAn ancient Roman house
- BThe Latin word for "town"
- CA finger-like projection in the small intestine
16What is the name given to cells which close and open the stomata?
- APalisade cells
- BGuard cells
- CMesophyll cells
17True or false? The surface area of roots is expanded through an absence of root hair cells.
- AVerdadero
- BFalso
18What is the transpiration stream?
- AThe constant cycle of water from uptake in the roots to evaporation in the leaves
- BA small river which has a larger than average population of algae
- CThe name given to flowing water which is unusually clear
19True or false? Wilting is a plant mechanism designed to reduce water loss.
- AVerdadero
- BFalso
20What device can be used to measure the rate of transpiration?
- AA potometer
- BA transpirometer
- CAn osmometer
Información
- Descripción
- Twenty questions for the first section of Unit 3 in AQA GCSE Biology: Exchange of materials.
- Autor
- Matthew T
- Idioma
- English
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- 1.042
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