Biology Fundamentals

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What is the primary difference between prokaryotic and eukaryotic cells?

Size of the cell

Presence or absence of a nucleus (correct)

Number of cell membranes

Type of cellular respiration

What is the function of mitochondria in eukaryotic cells?

Cell membrane formation

Cellular respiration (correct)

Cell signaling

Protein synthesis

What is the main difference between Gram-positive and Gram-negative bacteria?

Nutritional requirements

Response to Gram stain test (correct)

Cell shape

Type of metabolism

What is the role of bacteria in ecosystems?

Decomposition and nutrient cycling Signup and view all the answers

What is a characteristic of eukaryotic cells found in plants?

Presence of a cell wall Signup and view all the answers

What is the term for the process of generating energy in cells?

Cellular respiration Signup and view all the answers

What is the main focus of zoology?

The study of animals, ranging from tiny invertebrates to large mammals Signup and view all the answers

What is the function of the nucleus in a cell?

To hold genetic material and direct cell activities Signup and view all the answers

What is the primary function of the cell membrane?

To regulate the passage of substances in and out of the cell Signup and view all the answers

What is the fundamental concept in biology that states that cells are the building blocks of life?

Cell Theory Signup and view all the answers

What is the primary function of mitochondria in a cell?

To generate energy through cellular respiration Signup and view all the answers

What is the characteristic of cells that allows them to carry out all the functions necessary for an organism to survive and reproduce?

They are the smallest units of life Signup and view all the answers

What is the main function of the endoplasmic reticulum (ER) in a cell?

To transport and synthesize proteins and lipids Signup and view all the answers

What is the role of the cell membrane in a cell?

To control what enters and exits the cell Signup and view all the answers

What is the type of cell that lacks a distinct nucleus and membrane-bound organelles?

Prokaryotic cell Signup and view all the answers

What is the importance of ecosystems and human life?

They cover everything from tiny mosses to towering trees and their importance in ecosystems and human life Signup and view all the answers

What is the region where DNA is located in prokaryotic cells?

Nucleoid region Signup and view all the answers

What is the outermost layer of a prokaryotic cell?

Cell wall Signup and view all the answers