Bios 256 Exam 2 Full Solution Study Guide

BIOS 256 EXAM 2 FULL SOLUTION STUDY
GUIDE

◉ What is a micronutrient?
A) A nutrient the body produces
B) A nutrient consumed in large quantities
C) A nutrient needed in small quantities
D) A form of protein.
Answer: C) A nutrient needed in small quantities


◉ Which vitamin promotes calcium absorption?
A) Vitamin A
B) Vitamin D
C) Vitamin C
D) Vitamin K.
Answer: B) Vitamin D


◉ What is the primary function of enzymes?
A) Provide energy
B) Build new molecules
C) Speed up chemical reactions

,D) Store carbohydrates.
Answer: C) Speed up chemical reactions


◉ What is the first step of aerobic and anaerobic respiration?
A) Krebs cycle
B) Electron transport chain
C) Glycolysis
D) Fermentation.
Answer: C) Glycolysis


◉ During aerobic respiration, pyruvate is oxidized into:
A) Lactic acid
B) Glucose
C) CO2 and H2O
D) Fatty acids.
Answer: C) CO2 and H2O


◉ Which pathway involves breaking down glycogen into glucose?
A) Glycogenesis
B) Glycogenolysis
C) Gluconeogenesis
D) Lipolysis.

, Answer: B) Glycogenolysis


◉ What is the result of lipolysis?
A) Fat storage
B) Breaking down fat for fuel
C) Building proteins
D) Synthesis of glucose.
Answer: B) Breaking down fat for fuel


◉ Which hormone regulates the absorptive (fed) state?
A) Glucagon
B) Insulin
C) Cortisol
D) Growth hormone.
Answer: B) Insulin


◉ What is the key energy source during the postabsorptive (fasting)
state?
A) Glucose from food
B) Stored fats and glycogen
C) Vitamins and minerals
D) Protein from muscles.