Biology: Kingdom Plantae Quiz
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Questions and Answers

What is the primary function of amylase?

  • Digests proteins
  • Emulsifies fats
  • Carries oxygen in the blood
  • Breaks down starch into simpler sugars (correct)

In a closed circulatory system, blood is not contained within vessels.

False (B)

What role do platelets play in the circulatory system?

Aid in blood clotting

The __________ system collects excess fluid from the capillaries and drains it.

<p>lymphatic</p> Signup and view all the answers

Match the components of blood with their functions:

<p>Plasma = Transports fatty acids and vitamins Red blood cells = Carries oxygen from lungs to tissues White blood cells = Defends against infections Platelets = Aids in blood clotting</p> Signup and view all the answers

Which type of symmetry has body parts arranged around a central axis?

<p>Radial symmetry (C)</p> Signup and view all the answers

All members of Kingdom Protista are exclusively autotrophic.

<p>False (B)</p> Signup and view all the answers

What are the main methods of movement found in protists?

<p>Flagella, cilia, pseudopodia</p> Signup and view all the answers

In binary fission, bacteria duplicate their genetic material and __________ it between two daughter cells.

<p>split</p> Signup and view all the answers

Match the following bacterial shapes with their names:

<p>Cocci = Spherical Bacilli = Rod shaped Spirillum = Spiral shaped Vibrio = Comma shaped</p> Signup and view all the answers

What is a defining characteristic of protostomes?

<p>The mouth develops from the blastopore (B)</p> Signup and view all the answers

The lysogenic cycle involves a dormant phase.

<p>True (A)</p> Signup and view all the answers

What is the significance of the endosymbiosis theory in cell evolution?

<p>It explains how eukaryotic cells evolved from prokaryotic cells through the engulfing of other prokaryotes.</p> Signup and view all the answers

Which of the following is NOT a characteristic of the Bacteria domain?

<p>Membrane bound nucleus (D)</p> Signup and view all the answers

The first generation of offspring in genetics is known as the __________ generation.

<p>F1</p> Signup and view all the answers

Mosses are vascular plants that reproduce using seeds.

<p>False (B)</p> Signup and view all the answers

What type of cell walls do fungi have?

<p>Chitin</p> Signup and view all the answers

The dominant generation in ferns is the ______.

<p>sporophyte</p> Signup and view all the answers

Match the plant types with their characteristics:

<p>Green algae = Does not undergo alternation of generations Mosses = Non-vascular, gametophyte dominant Ferns = Vascular and seedless Flowering Plants = Encloses seeds within an ovary</p> Signup and view all the answers

Which domain contains organisms that are eukaryotic and can be multicellular?

<p>Eukarya (C)</p> Signup and view all the answers

What produces gametes in the gametophyte generation?

<p>Egg and sperm</p> Signup and view all the answers

What type of selection favors one extreme phenotype over others?

<p>Directional selection (C)</p> Signup and view all the answers

The biological concept of species relies on morphological characteristics alone.

<p>False (B)</p> Signup and view all the answers

What phenomenon often follows mass extinction events?

<p>Adaptive radiation</p> Signup and view all the answers

The primary site of water absorption in the digestive system is the ______.

<p>large intestine</p> Signup and view all the answers

Match the following types of selection with their descriptions:

<p>Stabilizing selection = Average traits are favored Directional selection = One extreme phenotype is favored Disruptive selection = Both extreme phenotypes are favored</p> Signup and view all the answers

What is a key condition for Hardy-Weinberg equilibrium?

<p>Random mating (C)</p> Signup and view all the answers

Current extinction rates are lower than natural background rates.

<p>False (B)</p> Signup and view all the answers

What is peristalsis?

<p>A wave-like muscle contraction that moves food through the digestive tract.</p> Signup and view all the answers

Match the digestive system structures to their functions:

<p>Mouth = Initiates digestion through chewing Stomach = Breaks down food into chyme Small Intestine = Absorbs nutrients Rectum = Stores stool until evacuation</p> Signup and view all the answers

What is a nondisjunction disorder?

<p>An error in chromosome distribution during meiosis (A)</p> Signup and view all the answers

Genetically modified organisms (GMOs) can solely lead to ecological disruption.

<p>False (B)</p> Signup and view all the answers

Name the two pairings of nitrogen bases in DNA.

<p>Adenine pairs with Thymine and Guanine pairs with Cytosine.</p> Signup and view all the answers

In gel electrophoresis, DNA fragments are separated by their ______.

<p>size</p> Signup and view all the answers

Match the terms with their definitions:

<p>Homologous structures = Common ancestor but different functions Analogous structures = Similar functions but different ancestry Vestigial structures = Reduced structures with no clear function Divergent evolution = Evolution from a common ancestor to diverse species</p> Signup and view all the answers

What is a positive impact of GMOs?

<p>Increased crop yields (A)</p> Signup and view all the answers

Genetic drift is a process that always favors the higher fitness traits in a population.

<p>False (B)</p> Signup and view all the answers

What is the role of restriction enzymes in genetic engineering?

<p>Restriction enzymes cut DNA at specific sequences.</p> Signup and view all the answers

Natural selection is the process by which individuals with inherited characteristics ______ in their environment.

<p>survive</p> Signup and view all the answers

Which of the following is a characteristic of comparative embryology?

<p>It compares the stages of embryos among species. (A)</p> Signup and view all the answers

Flashcards

Peristalsis

The rhythmic contraction and relaxation of muscles in the digestive tract, propelling food forward.

Blood

A fluid that circulates throughout the body, carrying oxygen, nutrients, and waste products.

Closed circulatory system

A type of circulatory system where blood flows through vessels and is kept separate from the interstitial fluid.

Open circulatory system

A type of circulatory system where blood is not contained within vessels and mixes with interstitial fluid.

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Lymphatic system

A system of vessels that collects excess fluid from tissues and returns it to the bloodstream.

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Classification of living organisms

A system of classifying living organisms into a hierarchical structure, from the broadest category (Kingdom) to the most specific (Species).

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Bacteria

Single-celled organisms lacking a membrane-bound nucleus, with cell wall made of peptidoglycan, found in diverse environments.

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Archaea

Single-celled organisms lacking a membrane-bound nucleus, with cell wall lacking peptidoglycan, often found in extreme environments.

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Eukarya

Organisms with cells containing a membrane-bound nucleus, including plants, animals, fungi, and protists.

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Diploid Sporophyte

The generation of a plant that produces spores and is typically diploid, meaning it has two sets of chromosomes.

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Haploid Gametophyte

The generation of a plant that produces egg and sperm cells (gametes) and is typically haploid, meaning it has only one set of chromosomes.

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Fungi

A type of fungus characterized by chitinous cell walls, diverse forms, and the ability to decompose organic matter into nutrients.

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Disruptive Selection

A type of natural selection where individuals with extreme phenotypes have higher fitness than those with intermediate phenotypes, resulting in two distinct populations.

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Directional Selection

A type of natural selection where individuals with traits at the extremes of a range have higher fitness than those with average traits.

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Stabilizing Selection

A type of natural selection where individuals with average traits have higher fitness than those with extreme traits.

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Biological Species Concept

A group of organisms that can interbreed and produce fertile offspring.

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Adaptive Radiation

The process of rapid diversification of species after a mass extinction event.

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Hardy-Weinberg Equilibrium

A condition where allele frequencies in a population remain constant from generation to generation.

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Random Mating

A condition where individuals in a population have an equal chance of mating with each other.

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Gene Flow

The movement of alleles between populations.

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Mutation

A change in the DNA sequence of a gene.

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Natural Selection

The process by which organisms better adapted to their environment tend to survive and reproduce more successfully.

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Kingdom Protista

A group of organisms that are predominantly single-celled, eukaryotic and include diverse forms like algae, protozoa, and slime molds.

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Binary Fission

A type of cell division common in bacteria where the parent cell duplicates its genetic material (DNA) and divides into two identical daughter cells.

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Bacterial Conjugation

A method of genetic transfer in bacteria where DNA is transferred from one bacterium to another through direct contact, typically via a bridge-like connection.

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Bacterial Transduction

A method of genetic transfer in bacteria where DNA is transferred from one bacterium to another via bacteriophages (viruses that infect bacteria).

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Bacterial Transformation

A method of genetic transfer in bacteria where bacteria take up free-floating DNA from their environment and incorporate it into their own genome.

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Blastopore

The first opening of the digestive tract in an animal embryo that develops into the mouth in protostomes and the anus in deuterostomes.

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Radial Symmetry

A type of symmetry where an organism can be divided into two identical halves along any plane that passes through its central axis. Examples include starfish, jellyfish, and sea anemones.

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Bilateral Symmetry

A type of symmetry where an organism can be divided into two mirror-image halves along a single plane. Examples include humans, dogs, and insects.

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Mitosis

A type of cell division common in eukaryotic organisms, where the parent cell divides into two daughter cells with the same number of chromosomes as the parent cell.

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What is a genotype?

The genetic makeup of an organism, represented by letters like 'Pp' to indicate the combination of alleles.

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What is a nondisjunction disorder?

An error in meiosis that leads to an abnormal number of chromosomes, either one extra or one fewer.

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What are the potential positives and negatives of GMOs?

Genetically modified organisms (GMOs) can increase crop yields and pest resistance but also raise concerns about environmental harm and health risks.

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What is gel electrophoresis?

A technique that separates DNA fragments based on their size using an electric field.

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What are restriction enzymes?

Proteins that cut DNA at specific sequences, enabling the analysis and manipulation of DNA.

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What are the nitrogen bases in DNA and how do they pair?

Adenine (A) always pairs with Thymine (T), and Guanine (G) always pairs with Cytosine (C) in DNA.

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What is a nucleotide?

The building blocks of DNA, consisting of a nitrogenous base (A, T, G, or C), a sugar molecule (deoxyribose), and a phosphate group.

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What is evolution?

The process by which populations evolve over time, driven by variations in traits that affect survival and reproduction.

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What is natural selection?

The process by which organisms with traits that increase their chances of survival and reproduction are more likely to pass those traits down to their offspring.

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What is a gene pool?

All the alleles (different versions of a gene) present in a population.

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Study Notes

Classification

  • Most general classification levels are Kingdom, Phylum, Class, Order, Family, Genus, and Species.
  • Know the three domains: Bacteria (prokaryotic, single-celled, cell walls with peptidoglycan, autotrophic and heterotrophic, no membrane-bound nucleus), Archaea (same as bacteria except cell walls lack peptidoglycan), and Eukarya (eukaryotic, single or multicellular, membrane-bound nucleus, divided into four kingdoms).

Kingdom Plantae

  • Green algae (found in ponds/lakes, no alternation of generations, non-vascular).
  • Mosses (no seeds, non-vascular, gametophyte is dominant).
  • Ferns (vascular, sporophyte is dominant, no seeds).
  • Seed plants (vascular, seeds, plants embryos contained inside an ovary; pollen are small male gametophytes, enclosed seeds).
  • Flowering plants (vascular, seeds inside an ovary, flowers attract animals/insects for pollination).
  • Diploid sporophyte (produces spores, tough coat enabling survival in unfavorable conditions).
  • Haploid gametophyte (produces gametes; fuse with another gamete to form a zygote).

Kingdom Fungi

  • Cell walls made of chitin.
  • Mostly multicellular, but can be unicellular.
  • Break down organic matter into nutrients.

Kingdom Protista

  • Know general characteristics of this group (often considered a "junk drawer").

Kingdom Animalia

  • Blastopore (mouth first opening of digestive tract) - Protostome vs. Deuterostome (anus first opening of digestive tract)
  • Body symmetry types: Asymmetrical (no distinct shape), Radial (body parts arranged around a central axis, no front/back), Bilateral (mirror image of right and left sides).

Bacteria

  • Know methods of reproduction: Sexual (conjugation, transduction, transformation ) , Asexual (binary fission).
  • Types and shapes (cocci, bacilli, spirillum, diplo, strepto, staphlo).

Viruses

  • Replication methods (lytic - host cell bursts; lysogenic - virus DNA/RNA integrates into host cell DNA, host cell DNA replicates incorporating viral DNA, which can later trigger lytic stage).

Genetics

  • Know punnett squares (dihybrid, incomplete dominance, co-dominance, multiple alleles (blood types) first generation/offspring, second generation/offspring).
  • Law of Independent Assortment (alleles of different genes are distributed to gametes independently).
  • Mitosis and meiosis stages (prophase, metaphase, anaphase, telophase).

Meiosis

  • Meiosis I: Homologous chromosomes separate.
  • Prophase I: Crossing over occurs.
  • Metaphase I: Homologous pairs align.
  • Anaphase I: Homologous chromosomes move to opposite poles.
  • Telophase I: Two haploid cells form.
  • Meiosis II : Sister chromatids separate
  • Prophase II: Chromosomes condense again, nuclear membrane disappears, and the spindle fibers appear.
  • Metaphase II: Chromosomes align in the middle.
  • Anaphase II: Sister chromatids are pulled apart to opposite poles.
  • Telophase II: The nuclear membrane reforms around each set of chromosomes, Cytokinesis divides the cytoplasm into four genetically unique haploid cells.
  • result :Mitosis - 2 identical diploid daughter cells. Meiosis - 4 genetically unique haploid cells.

Genes

  • Gene: portion of DNA that codes
  • Allele: version of a gene
  • Heterozygous: each allele is different (Pp)
  • Homozygous: both alleles are the same (PP)
  • Phenotype: physical appearance (ex. Purple)
  • Genotype: genetic makeup (ex. Pp)

Nondisjunction disorders

  • Errors in chromosome distribution during meiosis.

GMOs

  • Genetically modified organisms.
    • Positives: Increased crop yields, pest resistance.
    • Negatives: Environmental concerns, health risks.

Evolution

  • Fossils: Evidence of extinction.
  • Geographic distribution: Closely related species often have similar habitats; distantly related species often have similar habitats globally.
  • Comparative anatomy: Homologous (common ancestor, different functions), Analogous (similar functions, different ancestor).
  • Vestigial structures: Structures with little/no function, vestiges of an ancestor's traits.
  • Comparative embryology: Embryos of closely related organisms show similar stages of development.
  • Molecular biology: Sequencing genes reveal relationships among species; evolutionary relationships.
  • Divergent evolution: Evolution from a common ancestor to diverse species.
  • Natural selection: Process by which individuals with advantageous traits survive, reproduce, and pass on their traits to offspring.
  • Gene pool: All the alleles in a population.
  • Genetic drift: Random changes in gene pool (more impactful in small populations).
  • Bottleneck effect: Population size decreases rapidly.
  • Founder effect: Small group of individuals move out and start new population.
  • Mimicry: One species evolves to resemble another.
  • Cumulative selection: Small advantageous changes accumulate over time, leading to significant evolutionary adaptations.
  • Darwin and Lyell. - Darwin: natural selection drives evolution, organisms with better traits survive, reproduce, and pass traits to offspring; Lyell: Popularized and expanded Hutton's idea of uniformitarianism, the earth took millions of years to develop
  • Reproductive barriers: hybrid infertility, hybrid inviability, reproductive/behavioral, geographic, habitat, temporal, behavioral, mechanical, and gamete isolation
  • Types of selection: Stabilizing (average trait is favored), Directional (one extreme trait is favored), Disruptive (extreme traits are favored).
  • Definitions of Mass Extinctions and what happens after.

Animal Systems (Digestive)

  • Nutrients like carbohydrates.
  • Digestive system diagrams and functions
  • Understand constipation and related factors.
  • Enzymes and their roles in digestion

Animal Systems (Circulatory)

  • Blood (parts, structure, and function); platelets, white blood cells, red blood cells, plasma.
  • Open vs Closed circulatory systems.
  • Blood flow through the heart and circulation
  • Lymphatic system and its role (fluid balance, collects fluid)

Animal Systems (Respiratory)

  • Respiratory structures (trachea, bronchi, alveoli, diaphragm, nose hair/mucus)
  • Understand functions of each part of the system.
  • Process of gas exchange in the lungs (alveoli).
  • Factors affecting respiration rates.

Plants (General)

  • Know plant structures (root, stem, leaves, flowers, seeds, etc)
  • Root structure and function (anchor, absorption, storage)
  • Stems support leaves and flower, transport water and nutrient
  • Function and structure of leaves; photosynthesis

Plants (Specialized)

  • Function and structure of Flowers (sepal, petal, stamen, pistil, ovary).
  • Seed structure
  • Function and structure of Seeds (seed coat, embryo, endosperm).
  • Dermal, vascular, and ground tissue
  • Water transport through plants
  • Tropisms (positive/negative tropism)
  • Primary and secondary succession.
  • Climax community
  • Plant hormones (auxins, cytokinins, gibberellins, ABA, ethene)

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Test your knowledge about the classification and characteristics of plants in the Kingdom Plantae. This quiz covers various groups such as green algae, mosses, ferns, and flowering plants, including their reproductive strategies and structural differences. Perfect for students studying biology!

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