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Early Year 9 Biology Quiz
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Preguntas del test (13)
1I want to light a bunsen on safety flame. What position should the "hole" be?
- AThe hole should be open to increase air flow
- BThe hole should be closed to decrease air flow
- CThe hole should be in the half way position
2Which of the following are organs?
- ANeurone
- BStomach
- CEye
- DMuscle
3Which features will you only find in plant cells?
- AChloroplasts
- BNucleus
- CRibosomes
- DCellulose Cell Wall
4Which features will you find in a bacterial cell?
- ANucleus
- BCircular DNA
- CRIbosomes
- DMitochondria
5What is the role of the mitochondria
- ATo produce energy for the cell
- BTo release energy from food molecules
- CPerforms aerobic respiration to produce ATP for energy
6How many micrometers are in a meter?
- A1000
- B100
- C1000,000
- D10,000
7I measured the size of a root hair cell under the microscope. It was 4cm. My magnification was 400x. How big is the actual root hair cell?
- A10mm
- B0.1mm
- C1000 um
- D100um
8The red blood cell is an example of a specialised animal cell. How is specialised to carry oxygen to respiring tissues?
- ALarge surface area to volume ratio because of its biconcave shape
- BNo organelles so it can carry lots of haemoglobin
- CRed in colour to increase the rate of diffusion
- DSmall and flexible to fit into the smallest capillaries
9The root hair cells of plants are specialised cells. Which of the following describes their adaptation to function?
- ALong and thin to help absorb water from between fine soil particles
- BLarge surface area to volume ratio to increase rate of diffusion of water into the cell
- CHave stomata which open and close to control movement of gases in and out
10Define diffusion
- ARandom movement of molecules from a low to a high concentration
- BRandom movement of molecules from a high to low concentration
- CRandom movement of molecules against a concentration gradient
11How does oxygen get into a cell?
- AIt diffuses across the cell membrane
- BThe cell breathes it in from the atmosphere
- CIt moves by osmosis across the cell membrane
12Which of the following allows diffusion to happen more quickly?
- AA large diffusion distance
- BA good blood supply
- CA steep concentration gradient
- DA large surface area
13WHen I breathe out which of the following happens?
- AThe diaphragm contracts and moves down
- BThe intercostal muscles contract
- CThe rib cage moves down and in
- DThe volume of the lung space increases
- EThe pressure in the lung space increases compared to outside
Información
- Descripción
- Touches on some GCSE/IGCSE topics
- Autor
- Rachael A
- Idioma
- English
- Visitas
- 458
- Etiquetas
- Valoración
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