Rachael A
Quiz by , created more than 1 year ago

Touches on some GCSE/IGCSE topics

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Rachael A
Created by Rachael A almost 10 years ago
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Early Year 9 Biology Quiz

Question 1 of 13

1

I want to light a bunsen on safety flame. What position should the "hole" be?

Select one of the following:

  • The hole should be open to increase air flow

  • The hole should be closed to decrease air flow

  • The hole should be in the half way position

Explanation

Question 2 of 13

1

Which of the following are organs?

Select one or more of the following:

  • Neurone

  • Stomach

  • Eye

  • Muscle

Explanation

Question 3 of 13

1

Which features will you only find in plant cells?

Select one or more of the following:

  • Chloroplasts

  • Nucleus

  • Ribosomes

  • Cellulose Cell Wall

Explanation

Question 4 of 13

1

Which features will you find in a bacterial cell?

Select one or more of the following:

  • Nucleus

  • Circular DNA

  • RIbosomes

  • Mitochondria

Explanation

Question 5 of 13

1

What is the role of the mitochondria

Select one or more of the following:

  • To produce energy for the cell

  • To release energy from food molecules

  • Performs aerobic respiration to produce ATP for energy

Explanation

Question 6 of 13

1

How many micrometers are in a meter?

Select one or more of the following:

  • 1000

  • 100

  • 1000,000

  • 10,000

Explanation

Question 7 of 13

1

I measured the size of a root hair cell under the microscope. It was 4cm. My magnification was 400x. How big is the actual root hair cell?

Select one or more of the following:

  • 10mm

  • 0.1mm

  • 1000 um

  • 100um

Explanation

Question 8 of 13

1

The red blood cell is an example of a specialised animal cell. How is specialised to carry oxygen to respiring tissues?

Select one or more of the following:

  • Large surface area to volume ratio because of its biconcave shape

  • No organelles so it can carry lots of haemoglobin

  • Red in colour to increase the rate of diffusion

  • Small and flexible to fit into the smallest capillaries

Explanation

Question 9 of 13

1

The root hair cells of plants are specialised cells. Which of the following describes their adaptation to function?

Select one or more of the following:

  • Long and thin to help absorb water from between fine soil particles

  • Large surface area to volume ratio to increase rate of diffusion of water into the cell

  • Have stomata which open and close to control movement of gases in and out

Explanation

Question 10 of 13

1

Define diffusion

Select one or more of the following:

  • Random movement of molecules from a low to a high concentration

  • Random movement of molecules from a high to low concentration

  • Random movement of molecules against a concentration gradient

Explanation

Question 11 of 13

1

How does oxygen get into a cell?

Select one or more of the following:

  • It diffuses across the cell membrane

  • The cell breathes it in from the atmosphere

  • It moves by osmosis across the cell membrane

Explanation

Question 12 of 13

1

Which of the following allows diffusion to happen more quickly?

Select one or more of the following:

  • A large diffusion distance

  • A good blood supply

  • A steep concentration gradient

  • A large surface area

Explanation

Question 13 of 13

1

WHen I breathe out which of the following happens?

Select one or more of the following:

  • The diaphragm contracts and moves down

  • The intercostal muscles contract

  • The rib cage moves down and in

  • The volume of the lung space increases

  • The pressure in the lung space increases compared to outside

Explanation

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