Bella Statham
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Huge selection of questions for the AQA B2 paper. Appropriate for Higher Tier and for Foundation.

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Bella Statham
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AQA Biology B2 Questions

Pregunta 1 de 22

1

Name the product of protein digestion.

Selecciona una de las siguientes respuestas posibles:

  • Amino acid

  • Protease

  • Hydrochloric Acid

Explicación

Pregunta 2 de 22

1

What is an allele?

Selecciona una de las siguientes respuestas posibles:

  • A variation of a gene

  • A type of gene

  • A mutated cell

  • Thick, jelly like substance in the nucleus

Explicación

Pregunta 3 de 22

1

Select the process in the body that is NOT done by diffusion

Selecciona una de las siguientes respuestas posibles:

  • Water absorption in the large intestine

  • Water loss from leaves/transpiration

  • Glucose molecules absorbed

  • Gas exchange - CO2 out, O2 in

  • Moving particles (e.g mineral ions) against the concentration gradient

Explicación

Pregunta 4 de 22

1

Pepsin is made by the stomach.

Name the acid made by the stomach that allows pepsin to work well.

Selecciona una de las siguientes respuestas posibles:

  • Amino acid

  • Hydrochloric acid

  • Nitric acid

Explicación

Pregunta 5 de 22

1

Which of the following is NOT a process done by diffusion?

Selecciona una de las siguientes respuestas posibles:

  • Taking in substances for use in cell processes

  • Removing products of cell processes

  • Carrying oxygen around the body

Explicación

Pregunta 6 de 22

1

What type of enzyme digests dietary fats?

Selecciona una de las siguientes respuestas posibles:

  • Lipase

  • Protease

  • Amylase

  • None of the above

Explicación

Pregunta 7 de 22

1

Diffusion is the movements of molecules through a fully permeable membrane against the concentration gradient.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 8 de 22

1

Name the process that makes lactic acid in an athlete's muscles.

Selecciona una de las siguientes respuestas posibles:

  • Anaerobic respiration

  • Aerobic respiration

  • None of the above

Explicación

Pregunta 9 de 22

1

In a hydroponic system (when farmers grow crops in greenhouses with no soil) an air pump and airstone makes bubbles of air in a solution of ions. Gases from the air will dissolve into the solution.

Explain how this helps keep the plant's root alive.

Selecciona una de las siguientes respuestas posibles:

  • Supplies O2 which allows respiration meaning more energy for growth and active transport.

  • Changes the volume of the solution to trick the plant into not transpiring (losing water)

  • Changes the concentration to allow diffusion

Explicación

Pregunta 10 de 22

1

Which type of enzyme digests protein?

Selecciona una de las siguientes respuestas posibles:

  • Protease

  • Amylase

  • Lipase

Explicación

Pregunta 11 de 22

1

Each molecule of chlorophyll contains a magnesium ion.

Why do plants need magnesium ions for healthy growth?

Selecciona una de las siguientes respuestas posibles:

  • To make chlorophyll which traps light and energy for photosynthesis.

  • To make chlorophyll which can be processed and made into glucose for the plant

  • To make the sap vacuole inside plant cells.

Explicación

Pregunta 12 de 22

1

Name one ion that plants take in to supply them with nitrogen.

Selecciona una de las siguientes respuestas posibles:

  • Nitrate

  • Air

  • CO2

  • Minerals

Explicación

Pregunta 13 de 22

1

Why is more lactic acid made in the muscles when running at 14 km per hour than when running at 8 km per hour?

Selecciona una de las siguientes respuestas posibles:

  • More energy is needed and there is not enough O2 getting to cells so more anaerobic respiration.

  • The runner needs more energy so food is digested quicker, lactic acid is produced as a byproduct of this.

  • More energy is needed but there is not enough O2 getting to cells so more aerobic respiration.

Explicación

Pregunta 14 de 22

1

What is meant by a recessive allele?

Selecciona una de las siguientes respuestas posibles:

  • Only expressed if dominant allele is not present.

  • Only expressed if dominant allele is present.

  • Only expressived if there is one.

Explicación

Pregunta 15 de 22

1

Fossils

Early life forms were soft-bodied.

Explain why this makes it difficult for scientists to be certain about what these early life forms were like

Selecciona una de las siguientes respuestas posibles:

  • Fossils destryed due to soft parts decaying.

  • No evidence.

  • They were eaten, they rarely died of natural causes.

Explicación

Pregunta 16 de 22

1

Plants need a supply of the element nitrogen to make substances.

Select the subsance that nitrogen does NOT make.

Selecciona una de las siguientes respuestas posibles:

  • Protein

  • Amino acids

  • Enzymes

  • Glucose

Explicación

Pregunta 17 de 22

1

Students did an experiment to find out where different types of seaweed live on a seashore. They used quadrats.

Which of the following would NOT improve their investigation to ensure they produced valid data?

SE

Selecciona una de las siguientes respuestas posibles:

  • Repeating the experiment several times

  • Placing the quadrat elsewhere along the shore

  • Getting a larger quadrat

Explicación

Pregunta 18 de 22

1

Which type of enzyme digests carbohydrates?

Selecciona una de las siguientes respuestas posibles:

  • Protease

  • Amylase

  • Lipase

Explicación

Pregunta 19 de 22

1

During IVF treatment, each fertilised egg cell forms an embryo by cell division.

What is this type of cell division?

Selecciona una de las siguientes respuestas posibles:

  • Meisosis

  • Mitosis

  • Cloning

Explicación

Pregunta 20 de 22

1

Genetic material is made up of large molecules of a chemical substance.

What is this chemical substance?

Selecciona una de las siguientes respuestas posibles:

  • DNA

  • Amino acid

  • Glucose

Explicación

Pregunta 21 de 22

1

A bladder wrack (a type of seaweed) has many air bladders.

The air bladders help the bladder wrack to float upwards when the sea covers it.

Suggest how this helps the bladder wrack to survive.

Selecciona una de las siguientes respuestas posibles:

  • Means it is closer to the light, so more photosynthesis

  • More minerals at the surface of the water for it to absorb

  • There is less CO2 at the surface of the water, meaning more O2 for respiration

Explicación

Pregunta 22 de 22

1

There are a number of reasons why organisms may not mate sucessfully.

Select the odd one out.

Selecciona una de las siguientes respuestas posibles:

  • They are different sexes

  • It is not mating season

  • They do not find each other attractive

  • They are juvenile

Explicación

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