Year 10 Biology Quiz 1 Cells and DNA

Which of these is a prokaryotic organism?

• Animals

• Plants

• Bacteria

• Viruses

Where is DNA found in a eukaryotic cell?

Match the following:

• Site of photosynthesis

• Cell wall

• Site of most chemical reactions

• Cytoplasm

• Controls substances coming in/out

• Mitochondria

• Site of respiration

• Cell membranes

• Provides support for the cell

• Chloroplast

Which of these do prokaryotic cells (bacteria) NOT have

• Nucleus

• Cell membrane

• Cytoplasm

• Mitochondria

Reorder the following steps to using a microscope properly:

• Place the prepared slide on the stage

• Place a coverslip on the stained sample

• Look at the sample using the lowest objective lens

• Put the sample on a slide

• Add a chemical stain

A student uses a microscope with an eyepiece lens magnification of 4x and objective lens magnification of 40x.

What is the total magnification of the microscope?

Electron microscopes have a higher magnification and ​ (a)   than light microscopes.

This means we can see the cells in higher ​ (b)   ​ with an electron microscope.

For example, sub-cellular structures such as the ​ (c)   can only be seen with an electron microscope.

One problem with the electron microscope is the image will be ​ (d)   . b

• resolution
• detail
• mitochondria
• black & white
• in colour
• nucleus
• quality
• clarity

The shape of DNA is known as a ...

DNA is a ​polymer made up of repeating ​ (a)   .

Each of these nucleotides contains a sugar, phosphate group and a ​ (b)   .

DNA is tightly coiled and packaged into ​ (c)   .

Small sections of DNA that code for a particular characteristic are called ​ (d)   .

• nucleotides
• base
• chromosomes
• genes
• protein
• genetics
• double helix
• polymer

Match the following bases to their complementary pair:

• T

• G

• C

• C

• G

• T

• A

• A