Cells

Question 1

Red blood cells…

Answer 1

Small to pass through capillaries
Biconcave for increased surface area allowing more oxygen to diffuse in
No nucleus to carry more oxygen

Question 2

Egg cells…

Answer 2

Half the chromosomes

Large cytoplasm for food store

Question 3

Sperm cells….

Answer 3

Mitochondria for respiration for energy
Half the chromosomes in dna
Flagellum for mobility

Question 4

White blood cells….

Answer 4

Release anti bodies

Can change shape to engulf pathogens

Question 5

Sensory neurone

Answer 5

Send signals from sensory receptors to spinal cord and Brain.
Large surface area

Question 6

Motor neurone….

Answer 6

Sends signals from brain to muscle

Large surface area

Question 7

Root hair cell

Answer 7

Large surface area

Absorption of minerals and water

Question 8

Xylem….

Answer 8

Carries water through long tube one continuous water movement
No nuclei or cell organelles

Question 9

Phloem….

Answer 9

Carries sucrose from leaves to other parts of plants

No nucleus but has companion cell with nucleus and organelles

Question 10

Guard cells….

Answer 10

Fill with water and can change shape to allow carbon dioxide to enter leaf for photosynthesis

Question 11

Muscle cell

Answer 11

Mitochondria to carry out respiration for muscle contraction
Cytoplasm packed with muscle fibres so cell can contract