AQA Biology 9-1 Paper 1 Cell Biology Trilogy

How many micrometres are in 1mm?

• 1

• 10

• 100

• 1000

Calculate the real size in micrometres of a 1mm cell at x40 magnification

• 0.025 micrometres

• 40 micrometres

• 40 000 micrometres

• 25 micrometres

The nucleus in a photograph of a cell measures 3 mm across. If the magnification in the photograph is × 500, what is the actual size in millimetres of the nucleus?

• 1500mm

• 0.006mm

• 6mm

• 1.5mm

Which is the correct order of levels of organisation in organisms, from least complex to most complex?

• Cells → tissues → organelles

• Cells → tissues → organs

• Organ systems → organs → tissues

• Organelles → cells → tissues → organs → organ systems

What is a tissue?

• A system made from similar organs

• A group of cells with similar structures working together

• A group of organelles with similar structures working together

In plants, what are shoots and roots examples of?

• Organs

• Tissues

• Organ systems

• Cells

In plants, what are leaves examples of?

• Organs

• Organ systems

• Tissues

• Cells

Which part of a cell contains the genetic material?

• Nucleus

• Cytoplasm

• Mitochondria

• Ribosome

• Cell membrane

Which part of a cell controls the movement of substances in and out of the cell?

• Nucleus

• Cytoplasm

• Mitochondria

• Ribosome

• Cell membrane

Which part of a cell is where respiration takes place?

• Nucleus

• Cytoplasm

• Mitochondria

• Ribosome

• Cell membrane