AQA Biology B2 Quiz

What is the function of the cell membrane in cell structure and transport?

• Regulates movement of substances and provides structural support

• Regulates body temperature

• Produces hormones and enzymes

• Stores energy and nutrients

Explain the process of osmosis in cell structure and transport.

• Osmosis is the movement of air molecules from an area of low concentration to an area of high concentration through a selectively permeable membrane.

• Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.

• Osmosis is the movement of salt molecules from an area of low concentration to an area of high concentration through a selectively permeable membrane.

• Osmosis is the movement of water molecules from an area of low concentration to an area of high concentration through a non-permeable membrane.

What are the differences between active and passive transport in cell structure and transport?

• Active transport only occurs in plant cells, while passive transport only occurs in animal cells

• Active transport requires energy, while passive transport does not

• Active transport is faster than passive transport

• Active transport moves substances against the concentration gradient, while passive transport moves substances with the concentration gradient

How is the human body organized in terms of cells, tissues, organs, and systems in the organisation of the organism?

• Cells, tissues, organs, and systems

• Organs, tissues, cells, and systems

• Atoms, molecules, cells, and tissues

• Blood, bones, muscles, and organs

Explain the role of the circulatory system in the organisation of the organism.

• It transports essential substances and removes waste products to maintain homeostasis.

• It regulates body temperature by producing sweat

• It provides structural support to the body

• It is responsible for producing hormones

What is the function of the nervous system in the organisation of the organism?

• To coordinate and control the activities of the body by transmitting signals between different parts of the body.

• To regulate the body temperature

• To digest food and absorb nutrients

• To produce energy for the body

What are the main functions of the heart?

• Digesting food, absorbing nutrients, eliminating waste

• Regulating body temperature, storing energy, producing hormones

• Filtering blood, producing bile, storing vitamins

• Pumping blood, delivering oxygen and nutrients, removing waste products

Describe the structure of the human heart.

• The human heart is divided into four chambers: the left and right atria, and the left and right ventricles.

• The human heart is a single chamber organ with no division into atria and ventricles.

• The human heart is divided into two chambers: the upper atrium and the lower ventricle.

• The human heart is made up of three chambers: the left atrium, right atrium, and ventricle.

Explain the process of transpiration in plant tissues.

• Water is lost from the plant through the roots

• Water is lost from the plant through the stomata in its leaves.

• The process of transpiration only happens at night

• Transpiration occurs through the flowers of the plant

What is the function of the mitochondria in cell structure and transport?

• It is responsible for the production of energy in the form of ATP.

• It is responsible for the regulation of cell growth and cell cycle.

• It is responsible for the production of proteins and enzymes.

• It is responsible for the storage of nutrients and waste products.