NST1501 Assignment 2 completed with a declaration
form Questions and Answers 2023
Question 1
1.1. Eukarya are eukaryotes which have a true nucleus (see Section 3). Eukarya is
divided into four kingdoms:
Protista
Fungi
Plantae
Animalia.
Kingdom Protista
Protista are eukaryotic organisms that have cells with nuclei but are not an
animal, plant, or fungus. Protista do not form a natural group, or colony They
are composed of organisms which are unicellular or unicellular-colonial, and
which form no tissues. They may reproduce through asexual or sexual
means, be autotrophs or heterotrophs. Protista is diverse. They include
organisms such as:
Seaweeds
Diatoms
Amoebas
Disease-causing organisms such as Plasmodium, which causes malaria.
Kingdom Plantae
Plants are autotrophic, multicellular, terrestrial eukaryotes that obtain
energy through photosynthesis. Over time, plants have adapted which allows
them to thrive in the terrestrial world. Plant adaptations include:
Roots
, Leaves
Vascular system
Plant reproduction occurs through alternation of generations.
The plant life cycle alternates between a haploid stage (gametophyte) and a
diploid stage (sporophyte). Haploid means the nucleus of the cells has a
single set of unpaired chromosomes. Diploid means the nucleus of the cell
has two sets of paired chromosomes. The details vary by type of plant. The
details of this life cycle vary among the three major groups of plants, i.e.:
Mosses
Ferns
Seed plants
Kingdom Fungi
Fungi are more closely related to animals than to plants. They are
heterotrophs. Fungi may be single celled or multicellular and may reproduce
sexually or asexually. They include moulds, yeasts, mildew rusts and
mushrooms. Fungi are structurally, are divided into 2 groups:
Unicellular e.g., yeast
Multicellular e.g., mushrooms
You may wonder, how are fungi important. They are important because:
Many fungi are decomposers which means they play a crucial role in
terrestrial ecosystems; they decompose dead organic matter and make
nutrients available for plant.
They convert organic compounds to obtain energy and produce
various by-products e.g., yeast cells convert sugar into CO2 and alcohol
during fermentation.
Mushrooms are food sources for many animals.
Some are used in biotechnology in the clean-up of chemicals such oil.
form Questions and Answers 2023
Question 1
1.1. Eukarya are eukaryotes which have a true nucleus (see Section 3). Eukarya is
divided into four kingdoms:
Protista
Fungi
Plantae
Animalia.
Kingdom Protista
Protista are eukaryotic organisms that have cells with nuclei but are not an
animal, plant, or fungus. Protista do not form a natural group, or colony They
are composed of organisms which are unicellular or unicellular-colonial, and
which form no tissues. They may reproduce through asexual or sexual
means, be autotrophs or heterotrophs. Protista is diverse. They include
organisms such as:
Seaweeds
Diatoms
Amoebas
Disease-causing organisms such as Plasmodium, which causes malaria.
Kingdom Plantae
Plants are autotrophic, multicellular, terrestrial eukaryotes that obtain
energy through photosynthesis. Over time, plants have adapted which allows
them to thrive in the terrestrial world. Plant adaptations include:
Roots
, Leaves
Vascular system
Plant reproduction occurs through alternation of generations.
The plant life cycle alternates between a haploid stage (gametophyte) and a
diploid stage (sporophyte). Haploid means the nucleus of the cells has a
single set of unpaired chromosomes. Diploid means the nucleus of the cell
has two sets of paired chromosomes. The details vary by type of plant. The
details of this life cycle vary among the three major groups of plants, i.e.:
Mosses
Ferns
Seed plants
Kingdom Fungi
Fungi are more closely related to animals than to plants. They are
heterotrophs. Fungi may be single celled or multicellular and may reproduce
sexually or asexually. They include moulds, yeasts, mildew rusts and
mushrooms. Fungi are structurally, are divided into 2 groups:
Unicellular e.g., yeast
Multicellular e.g., mushrooms
You may wonder, how are fungi important. They are important because:
Many fungi are decomposers which means they play a crucial role in
terrestrial ecosystems; they decompose dead organic matter and make
nutrients available for plant.
They convert organic compounds to obtain energy and produce
various by-products e.g., yeast cells convert sugar into CO2 and alcohol
during fermentation.
Mushrooms are food sources for many animals.
Some are used in biotechnology in the clean-up of chemicals such oil.
