Biology term 1 assessment

Question 1

Name the features of an animal cell.

Answer 1

Nucleus, mitochondria, ribosome, cytoplasm, cell membrane

Question 2

Name the features of a prokaryotic cell

Answer 2

Circular dna, cell membrane, cell wall, capsule, ribosomes, cytoplasm, plasmid dna, pili, flagellum

Question 2

Name the features of a plant cell

Answer 2

Nucleus, mitochondria, ribosome, cytoplasm, cell membrane, cell wall, chloroplast, vacuole

Question 3

What adaptations do red blood cells have?

Answer 3

Biconcave for maximum surface area area for diffusion.

No nucleus for maximum space for haemoglobin to carry oxygen.

Tiny so can pass through capillaries.

Question 4

Nerve cell adaptations?

Answer 4

Extension for communication.

Lots of mitochondria.

Question 5

What do ribosomes do?

Answer 5

Make proteins

Question 6

What is the method for the microscope required practical?

Answer 6

1. Peel the skin from the onion with tweasers.
2. Lay the onion skin on the microscope slide.
3. Squirt a drop of iodine solution on the slide.
4. Put a cover slip on tip of the slide.
5. Put the microscope slide on the stage of the microscope.
6. Turn the objective lense to the 100x magnification.
7. Adjust the coarse and fine focus knots until the onion cells come into focus.