Cells And How They Work - Human Biology | Biology+

Course

Human Biology

Study Pack

Set 1: Learning About Human Biology

Set 2: Chemistry of Life

Set 3: Cells and How They Work

Set 4: Tissues, Organs, and Organ Systems

Set 5: The Skeletal System

Set 6: The Muscular System

Set 7: Circulation: the Heart and Blood Vessels

Set 9: Immunity and Disease

Set 10: The Respiratory System

Set 11: Digestion and Nutrition

Set 12: The Urinary System

Set 13: The Nervous System

Set 14: Sensory Systems

Set 15: The Endocrine System

Set 16: Reproductive Systems

Set 17: Development and Aging

Set 18: Cell Reproduction

Set 19: Introduction to Genetics

Set 20: Chromosomes and Human Genetics

Set 21: DNA, Genes, and Biotechnology

Set 22: Genes and Disease: Cancer

Set 23: Principles of Evolution

Set 24: Principles of Ecology

Set 25: Human Impacts on the Biosphere

Set 3 Cells And How They Work

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Set 3 Cells And How They Work

(Multiple Choice)

Free

The phospholipid molecules of most membranes have

A) a hydrophobic head and a hydrophilic tail.
B) a hydrophobic head and a hydrophobic tail.
C) a hydrophobic head and two hydrophobic tails.
D) a hydrophilic head and two hydrophobic tails.
E) two hydrophobic tails.

Answer

(Multiple Choice)

Free

These contain enzymes that digest various substances.

A) mitochondria
B) Golgi bodies
C) nuclei
D) ribosomes
E) lysosomes

Answer

(Multiple Choice)

Free

Most of the molecules in cell membranes are

A) proteins.
B) carbohydrates.
C) lipids.
D) phospholipids.
E) nucleic acids.

Answer