NSW Biology Revision Module 1

What structures can be seen in this slide of onion cells?

• Nucleus

• chloroplast

• cell wall

• cytoplasm

• All of the above

This is an animal cell. How do you know?

• It has a cell wall, chloroplast and nucleus

• it has a nucleus and mitochondria

• It does not have a cell wall or chloroplast

• It has a vacuole

What is the primary function of mitochondria in a cell?

• Photosynthesis

• Protein synthesis

• Energy production

• Cell division

Which organelle is responsible for photosynthesis in plant cells?

• Ribosome

• Chloroplast

• Golgi apparatus

• Endoplasmic reticulum

Maddie conducted an experiment to examine the relationship between temperature and enzyme activity. A diagram of her experimental set-up is shown in the picture. One way that Maddie could improve the validity of her investigation is to:

• repeat the investigation 3 times

• increase the range of temperatures tested

• increase the amount of potato in two test tubes

• use a temperature probe to record the temperature of the potato/hydrogen peroxide mixture.

This is a ...?

This is a

This picture demonstrates the movement of water from high to low concentration through a semi-permeable membrane. This process is called

Diffusion is the movement of particles from high to low concentration until it reaches

Movement of particles from low to high concentration

• Is called Active transport

• requires energy

• follows the concentration gradient

• does not occur