Sophia human biology milestone Study guides, Class notes & Summaries

1 Which of these is TRUE of a neuron at resting potential? The neuron has more positive charges inside than outside. The neuron has more potassium ions inside than outside. Sodium-potassium pumps transport potassium ions out of the neuron. Sodium-potassium pumps transport sodium ions into the neuron. CONCEPT Membrane Potential and Action Potential 2 Which structure of the ear monitors movement and equilibrium via its semicircular canals and two fluid- filled sacs? Tector...

Which of the following is a biological class? Mammalia Chordata Animalia Ursidae CONCEPT Organisms 2 Which statement is true? In eukaryotic cells, DNA floats freely in the cytoplasm.

SOPHIA Human Biology Unit 6 – Milestone Questions and Answers (Already Graded A)

Sophia Human Biology Milestone 2 1 Which of the following statements is true of the effects of aerobic exercise on the muscle? Aerobic exercise leads to stronger muscles that sustain activity for short periods of time. Aerobic exercise significantly increases myofibrils within the muscles. Aerobic exercise leads to significantly larger muscles. Aerobic exercise increases mitochondria within cells, making muscles able to sustain activity for longer periods of time. CONCEPT Muscle Build...

Which type of digestion occurs in the mouth? ● Neither mechanical nor chemical ● Chemical ● Mechanical ● Both mechanical and chemical CONCEPT Chewing and Swallowing 2 Which of the following describes the role of renin in maintaining homeostasis? ● Its release is prompted by a decrease in blood volume and blood pressure. ● It acts to dilute urine. ● It acts to decrease the amount of water that is reabsorbed. ● Its release is prompted by an increase in blood volum...

Which of the following statements about glycolysis is true? ● It is the last stage of cellular respiration. ● It utilizes a molecule of glucose to produce three ATP. ● It is an anaerobic process. ● Phosphorylation halts the process when ATP levels get too low. CONCEPT Glycolysis 2 How many turns of the Krebs cycle are required to break down one molecule of glucose? ● Four ● Three ● One ● Two CONCEPT Krebs Cycle 3 Which organelle is mainly responsible for synthesi...

Human biology Sophia milestone 1 final

Sophia Human Biology Milestone 5 You passed this Milestone 18 questions were answered correctly. 8 questions were answered incorrectly. 1 Which type of digestion occurs in the mouth? CONCEPT Chewing and Swallowing 2 Which of the following describes the role of renin in maintaining homeostasis? CONCEPT Fluid Balance and Blood Pressure 3 What body part develops from the mesoderm? ● Brain CONCEPT Fertilization and Early Develop...

Sophia Human Biology Milestone 5 You passed this Milestone 18 questions were answered correctly. 8 questions were answered incorrectly. 1 Which type of digestion occurs in the mouth? CONCEPT Chewing and Swallowing 2 Which of the following describes the role of renin in maintaining homeostasis? CONCEPT Fluid Balance and Blood Pressure 3 What body part develops from the mesoderm? ● Brain CONCEPT Fertilization and Early Develop...

Which of the following statements about glycolysis is true? ● It is the last stage of cellular respiration. ● It utilizes a molecule of glucose to produce three ATP. ● It is an anaerobic process. ● Phosphorylation halts the process when ATP levels get too low. CONCEPT Glycolysis 2 How many turns of the Krebs cycle are required to break down one molecule of glucose? ● Four ● Three ● One ● Two CONCEPT Krebs Cycle 3 Which organelle is mainly responsible ...