Lab 4 Quiz Biology 3 Guzman

Metabolism

Organisms ability to use energy.

Carbon, Hydrogen, Fats, Oxygen, Protein

5 molecules essential to animal cells

Amino Acids

Building blocks of protein.

Phospholipid

Lipid that have both hydrophobic and hydrophilic parts.

Covalent

What sort of bond holds the oxygen and hydrogen atoms together in a water molecule?

Hydrogen

What sort of bond holds two water molecules together?

Polar

Is water a polar or non-polar molecule?

Phospholipid

Forms a continuous fluid barrier of the cell.

Protein

Transport molecules through the membrane and are important in cell recognition.

Carbohydrate

Associated with proteins or lipids, act as a marker for cell to cell recognition.

Cholesterol

Fills in spaces and strengthens the membrane while maintaining the fluid nature.

Through a protein

How would a substance dissolved in water get into a cell?

Organelle

Little organ" Small structures within a cell with a specific function

Cell

The smallest unit of life. Each carries on the functions associated with life, including metabolism, homeostasis, growth and reproduction.

Cytoplasm

The fluid matrix within the cell membrane.

Cytoskeleton

A network of protein fibers that supports the cell.

Cell Membrane

The boundary of the cell, controls the flow of molecules in and out of the cell.

Cell Wall

Tough polysaccharide layer that supports plant and bacterial cells.

Nucleus

Contains the genetic material (DNA) of plant and animal cells, directing all the cells activities.

Mitochondrion

The "powerhouse" of the cell, generates ATP for all cellular activity.

Chloroplast

Converts sunlight into chemical energy (photosynthesis).

Ribosome

Synthesize proteins by assembling the chains of amino acids.

Lysosome

Contains digestive enzymes that can destroy worn out components of the cell.

Golgi Complex

Processes and packages lipids and proteins.

Rough ER

Processes and packages the raw proteins produced by ribosomes.

Smooth ER

Synthesize lipids

Vacuole

Fluid filled sac within the cytoplasm containing water, pigments, food, or toxins

Cilia and Flagella

Accomplish movement for the cell.

Ribosome and cell membrane

Organelles found in all organisms

No nuclear membrane

Why isn't the nucleoid considered a true nucleus?

Solute

A substance dissolved in a solvent

Solvent

A liquid in which the solute is dissolved

Solution

A combination of solute and solvent

Diffusion

A random movement of particles from a region of high concentration to a region of low concentration.

Osmosis

The diffusion of water through a semipermeable membrane

Hypertonic

More solute

Isotonic

Same solute

Hypotonic

Less solute

Tissue

A group of similar cells organized into a structural and functional unit.

Epithelial Tissue

Covers all exposed body surfaces, including skin and lining of digestive tract.

Muscle Tissue

Attached to bones for movement, inside the digestive tract to move food, pumps blood in the heart.

Nervous Tissue

Sensory and motor neurons are found throughout the body, neurons are also concentrated in brain and spinal column.

Connective Tissue

Binds and supports tissue within a matrix. Includes blood, tendons, and ligaments.

Lumen

The central opening of the intestines, where the food passes through

Villi

The projections of the inner lining of the intestine; greatly increase the surface area, increasing the rate of food absorption.

Absorb nutrients

What is the function of the capillaries and lacteal?

Secrete mucus

What is the function of the goblet cells?