Theory

CH13 - EXCRETION IN HUMANS

A healthy kidney controls the excretion of urea and other waste products of metabolism from the blood.After kidney failure there are two possible trea...

2011 Summer

2

Theory

CH13 - EXCRETION IN HUMANS

What shows the sequence of organs through which urea passes as it travels from where it is produced to where it is removed from the blood?A kidneys �...

2012 Winter

2

Theory

CH13 - EXCRETION IN HUMANS

Which substance is lost from the body by the kidneys, lungs and skin? A. carbon dioxide B. excess ions C. urea D. water

2010 Winter

2

Theory

CH13 - EXCRETION IN HUMANS

Which process removes the waste products of metabolism from the body? A. excretion B. nutrition C. reproduction D. respiration

2009 Summer

2

Theory

CH13 - EXCRETION IN HUMANS

A healthy person eats a very high-protein diet. What effect will this have on their urine?A It will contain amino acids.B It will contain glucose.C It...

2012 Winter

2

Theory

CH13 - EXCRETION IN HUMANS

The diagram shows a kidney and its blood vessels. In a healthy person, which structures transport glucose?A artery onlyB artery and ureterC artery ...

2009 Summer

2

Theory

CH13 - EXCRETION IN HUMANS

The diagram shows the human urinary system. Which substance is not found in the liquid at X in a healthy person? A glucose B salt C toxins D ur...

2012 Summer

2

Theory

CH13 - EXCRETION IN HUMANS

Which set of conditions would make the percentage of water in urine decrease the most?[Table_1]Table 1: Conditionsconditionstemperature of the surroun...

2012 Summer

3

Theory

CH13 - EXCRETION IN HUMANS

Which materials are excreted by kidneys and lungs?[Table_1]

2011 Winter

2

Theory

CH13 - EXCRETION IN HUMANS

Blood passes through the kidney and some substances leave the blood as filtered liquid. From this liquid certain substances are reabsorbed back into t...

2009 Winter

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram illustrates some of the processes carried out by living organisms. Which characteristic of living organisms is represented by arrow X? ...

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a correct way of naming a species, according to the binomial system? A. Homo sapiens B. Homo Sapiens C. human being D. sapiens

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Diagram of Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of these arthropods ar...

2015 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

The key can be used to distinguish between four different chemical substances. Use the key to identify which substance could be a protein. 1 contain...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells from a leaf.Which labelled part would also be found in liver cells?

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows part of a leaf in cross-section.Structures X and Y are both part of the sameA. cell.B. organ.C. tissue.D. vessel.

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. Which features show that it is a plant cell?A It has a cell wall and a vacuole.B It has a nucleus and cytoplasm.C It h...

2015 Summer

2

Theory

CH8 - TRANSPORT IN PLANTS

In a section through a plant, a student found a group of long, microscopic structures. The structures lacked end walls, cytoplasm and nuclei.Which ide...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell cut in half. What does this diagram indicate about the structure of this cell?A The cell has a cell wall.B The ...

2015 Summer

2

Theory

CH6 - PLANT NUTRITION

How do carbon dioxide and oxygen move in and out of a mesophyll cell?A. active transportB. diffusionC. respirationD. transpiration

2015 Summer

1