Biology Units 1 & 2 Quiz

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Questions and Answers

What does the prefix "auto" indicate?

Self (correct)

Two

Within, internal

Outer, external

What does the suffix "lysis" indicate?

Sugar

Love

To burst (correct)

Fear

Which prefix indicates "many"?

Mono-

Bi-

Di-

Poly- (correct)

Which of these suffixes indicates "cell"?

-cyte (A) Signup and view all the answers

Which of these prefixes indicates "good, true"?

Eu- (C) Signup and view all the answers

What is the difference between osmosis and diffusion?

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, while osmosis is the movement of water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration. (B) Signup and view all the answers

During what stage of the cell cycle does DNA replication occur?

S phase (D) Signup and view all the answers

What is the function of the sodium-potassium pump?

To transport potassium ions into the cell and sodium ions out of the cell (C) Signup and view all the answers

What distinguishes detritivores from decomposers in an ecosystem?

Detritivores consume dead organic matter, while decomposers break it down chemically. (A) Signup and view all the answers

Which of the following correctly defines a trophic level?

A position in a food web where an organism obtains its energy. (A) Signup and view all the answers

What role do lipids play in cell membranes?

They act as a barrier due to their hydrophobic properties. (B) Signup and view all the answers

How does the concept of homeostasis relate to cellular function?

It enables cells to maintain a stable internal environment despite external changes. (C) Signup and view all the answers

What is a key difference between prokaryotes and eukaryotes?

Prokaryotes lack a nucleus, whereas eukaryotes have a defined nucleus. (C) Signup and view all the answers

Which of the following cycles does not include a gaseous phase?

Phosphorus cycle (D) Signup and view all the answers

What impact do density-dependent factors have on population growth?

They limit population growth more significantly as the population density increases. (D) Signup and view all the answers

What is the primary function of the cell nucleus?

To store genetic information and control cell activities. (A) Signup and view all the answers

Study Notes

Unit 1: Ecology

Understand food webs, food chains, and trophic levels.
Know different types of organisms (detritivores, producers, consumers, decomposers).
Study the water cycle, carbon cycle, phosphorus cycle, and nitrogen cycle.
Define biotic and abiotic factors.
Learn about different types of symbiosis and predator-prey relationships.
Understand population growth curves, factors that limit growth, and factors that increase or decrease population size.
Define biomass, density-dependent factors, and density-independent factors, niche.

Unit 2: Organization, Structure, and Function

Contrast organic and inorganic compounds.
Define monomer, polymer, and macromolecule, and relate them to each other.
Identify and describe the four major biochemical compounds (carbohydrates, lipids, proteins, and nucleic acids), including their structures and characteristics in living organisms, and provide examples.
Relate the structure of lipids to their function in membranes (polarity - hydrophobic/hydrophilic).
Explain the size limitations of cells and calculate surface area to volume ratios.
Distinguish between prokaryotes and eukaryotes.
Describe cell membrane structure, composition, and function.
Understand which organelles work together for protein synthesis and excretion.
Compare and contrast plant and animal cells' structural differences.
Describe the structure and function of the nucleus.
Define homeostasis.

Unit 3: Cell Differentiation, Homeostasis, and Communication

Explain the process of substance diffusion.
Define homeostasis.
Describe hypertonic, hypotonic, and isotonic solutions.
Understand the effects of hypertonic and hypotonic solutions on plant and animal cells.
Differentiate between diffusion and osmosis.
Define and explain turgor pressure and its relation to plant function.
Explain how substances can move across the cell membrane through simple diffusion, facilitated diffusion, and active transport, giving examples.
Differentiate between active and passive transport.
Explain the sodium-potassium pump's operation.

Unit 4: Cellular Processes, Feedback, and Genetic Variation

Differentiate between sexual and asexual reproduction.
Understand the stages of meiosis.
Define gamete, zygote, diploid, haploid, homologous chromosomes.
Define nondisjunction, its relationship with crossing over, function of interphase, and differentiate autosomes from sex chromosomes.
Compare and contrast mitosis and meiosis.
Define stem cells, oogenesis, and spermatogenesis.

Biology Vocabulary Prefixes and Suffixes (Semester 1):

Provide a list of prefixes and suffixes with their meaning and example words (not covering all terms).

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Description

Test your knowledge on ecology and the organization of life in this comprehensive quiz. Covering food webs, organisms, biochemical compounds, and ecological cycles, this quiz is designed to challenge your understanding of fundamental biological concepts.