BIOS 256 Exam 2 (Chamberlain) Verified Questions and Answers A+ Grade 2026/2027 | Complete Exam 2 Study Guide

BIOS 256 Exam 2 (Chamberlain)verified Questions and Answers Graded
A+ 2026\2027


Which of the following is a macronutrient?

A) Vitamins

B) Minerals

C) Proteins

D) Water-soluble vitamins
- correct answer C) Proteins



What is the primary function of carbohydrates?

A) Build muscle

B) Source of fuel

C) Create enzymes

D) Transport lipids
- correct answer B) Source of fuel



Which hormone is secreted when blood glucose is high?

A) Glucagon

B) Cortisol

C) Insulin

D) Thyroid hormone
- correct answer C) Insulin



What type of molecule is a triglyceride?

A) Protein

B) Carbohydrate

C) Lipid

,D) Nucleic acid
- correct answer C) Lipid



Which of the following is a component of cellular membranes?

A) Fatty acids

B) Phospholipids

C) Steroids

D) Glycoproteins
- correct answer B) Phospholipids



What is the primary role of high-density lipoproteins (HDLs)?

A) Deliver cholesterol to cells

B) Pick up cholesterol from organs for elimination

C) Transport lipids from liver to adipose tissue

D) Store triglycerides in adipose tissue
- correct answer B) Pick up cholesterol from organs for elimination



Which lipoprotein carries lipids absorbed from the small intestine?

A) HDL

B) LDL

C) VLDL

D) Chylomicrons
- correct answer D) Chylomicrons



Which nutrient must be consumed because the body cannot produce it?

A) Vitamin D

B) Essential nutrients

C) Nonessential nutrients

D) Glycoproteins
- correct answer B) Essential nutrients

, 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
- correct 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
- correct 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
- correct 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
- correct answer C) Glycolysis



During aerobic respiration, pyruvate is oxidized into: