AQA GCSE BIOLOGY - CELL BIOLOGY

Which food group best supports growth and repair?

• Protein

• Carbohydrate

• Fat

• Fibre

Eukaryotic cells have…

• their genetic material enclosed in a nucleus

• loose genetic material

• no genetic material

• too much genetic material

Where are embryonic stem cells found?

• In embryos

• In adults

• In zygotes

• In bones

Diffusion is a movement of molecules…

• from low concentration to high concentration

• against the concentration gradient

• from high concentration to low concentration

• by active transport

The subcellular structure found in a plant cell but NOT found in an animal cell is the…

• nucleus

• cell membrane

• cytoplasm

• chloroplasts

Which of these requires energy?

• Diffusion

• Hydrosis

• Osmosis

• Active transport

If a plant cell is placed in a concentrated sugar solution…

• there is no net movement of water

• water will enter the cell

• water will leave the cell

• the cell will gain mass

Where in a cell do most chemical reactions take place?

• Vacuole

• Nucleus

• Mitochondria

• Cytoplasm

What can bone marrow stem cells differentiate into?

• Blood

• Muscle

• Skin

• Bone

Which gas moves from the alveoli to the capillaries?

• Carbon dioxide

• Oxygen

• Both carbon dioxide and oxygen

• Helium