Biology Study guides, Class notes & Summaries

2 © OCR 2023 1 (a) (i) Complete the table to compare cellular aerobic and anaerobic respiration in humans. Tick () the correct boxes in each row. [3] (ii) Which statement about respiration is correct? Tick () one box. Aerobic respiration produces more ATP than anaerobic respiration. Anaerobic respiration produces more ATP than aerobic respiration. Both aerobic and anaerobic respiration produce the same amount of ATP. Neither aerobic or anaerobic respiration produces ATP. [1] (b) H...

2 © OCR 2023 ring ring ring 1 Fig. 1.1 shows parts of the human nervous system. Fig. 1.1 Brain Structure B Muscle Spinal cord Structure A (a) Structure A allows us to sense the things we touch. What is the name of structure A? Put a around the correct option. CNS Effector Motor neuron Sensory neuron [1] (b) The muscle contracts to move the arm when it receives a nerve impulse from the brain. What type of structure is the muscle? Put a around the correct option. CNS Effector M...

3 © OCR 2023 Turn over "The larger the animal, the more chromosomes it has in each body cell." 1 (a) Write these structures in order of size. Cell Chromosome Gene Nucleotide Nucleus Smallest ..................................... ..................................... ..................................... ..................................... Largest ..................................... [4] (b) The table shows the number of chromosomes that different animals have in each body cell. ...

2 © OCR 2023 Section A You should spend a maximum of 30 minutes on this section. Write your answer to each question in the box provided. 1 A person was in an accident and their memory is affected. Which part of the brain is most likely to have been injured? A Cerebrum B Hypothalamus C Medulla D Pituitary Your answer [1] 2 Single-celled algae found in the ocean absorb large amounts of carbon dioxide. Which process inside the cells of the algae uses this carbon dioxide? A Homeostasi...

2 © OCR 2023 Section A You should spend a maximum of 30 minutes on this section. Write your answers to each question in the box provided. 1 Which process in the carbon cycle decreases the amount of carbon dioxide in the air? A Combustion B Decomposition C Photosynthesis D Respiration Your answer [1] 2 Which of these is a biotic factor that can affect the growth of plants? A Carbon dioxide levels B Light availability C Mineral content of the soil D Number of primary consumers You...

2 © OCR 2023 Spines Section A You should spend a maximum of 30 minutes on this section. Write your answer to each question in the box provided. 1 A plant is placed near a window. The plant grows towards the light. Which hormone is responsible for this growth movement? A Auxin B Insulin C Oestrogen D Testosterone Your answer [1] 2 The cactus is found in the desert. It has very small leaves called spines. Why are spines an advantage to the cactus? A They slow down the rate of resp...

Biology Practice test Guaranteed Success with Certified Solutions,Best Exam.

Biology Practice test Guaranteed Success with Certified Solutions,Best Exam.

Biology Practice test Guaranteed Success with Certified Solutions,[RATED A+]