IGCSE Biology Revision 0610

The Venus flytrap is a plant that feeds on insects. When a fly lands on the leaf, the leaf folds very quickly and traps the fly. The leaves produce enzymes which digest the fly. Which characteristics of living organisms are involved?

• excretion, growth, nutrition

• movement, excretion, nutrition

• movement, sensitivity, growth

• movement, sensitivity, nutrition

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The diagram shows part of a leaf in cross-section. Structures X and Y are both part of the same

• Cell

• Organ

• Tissue

• Vessel

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How do carbon dioxide and oxygen move into and out of a mesophyll cell?

• active transport

• diffusion

• respiration

• transpiration

Tags

NGSS.MS-LS1-6

The data show the concentrations of sugar and starch in an onion.

• A

• B

• C

• D

Tags

NGSS.MS-LS2-1

NGSS.MS-PS1-2

• A

• B

• C

• D

The apparatus shown is used for an experiment on starch digestion. Which test-tube contains the most sugar after 20 minutes?

• A

• B

• C

• D

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

The graph shows how an enzyme-controlled reaction is affected by temperature. Which statement explains the change in activity between X and Y?

• A There are more effective collisions.

• B There is a change in the enzyme shape.

• C There is more substrate present.

• D The kinetic energy of the molecules has increased.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-5

An experiment was carried out using the apparatus shown. The carbon dioxide content of the water in each test-tube was measured at the start and again three hours later. In which test-tube would there be a decrease in carbon dioxide content?

• A

• B

• C

• D

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which region in the leaf of a green plant contains phloem?

• palisade mesophyll

• spongy mesophyll

• upper epidermis

• vascular bundle

What is the result of a diet lacking iron?

• bleeding gums

• poor wound healing

• Anemia

• weak bones and teeth