Discover the Nutritious and Diverse Seaweeds of New Zealand: A Fascinating Journey into the Depths of the Sea

“Unlocking the Wonders of New Zealand’s Seaweeds: A Comprehensive Guide to Reading Answers. Delve into the captivating world of New Zealand’s diverse seaweed species as we unravel their secrets and provide insightful reading answers. Explore their ecological importance, unique characteristics, and potential applications in various industries. Gain a deeper understanding of these fascinating marine organisms through our concise and informative guide.”

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Section A – Nutritious value of seaweeds

Heading: Nutritious value of seaweeds

This section discusses the nutritional benefits of seaweeds, highlighting their ability to absorb and concentrate various minerals and vitamins necessary for the body’s health. It also mentions the high iodine content in seaweeds, which may contribute to a low incidence of goitre in certain populations.

Section B – Various products of seaweeds

Heading: Various products of seaweeds

This section focuses on the different products that can be derived from New Zealand’s diverse range of seaweed species. It specifically mentions the commercial applications of agar, a gel-forming substance extracted from certain species of seaweed. These applications include seameal custard, cough mixture, confectionery, cosmetics, and various industries such as canning, paint, leather, and toothpaste.

Section C – Underuse of native species

Heading: Underuse of native species

In this section, it is mentioned that despite New Zealand having commercially profitable red seaweeds with agar content, there was relatively little use made of them before 1940. The country used to import Irish moss and ready-made agar from other regions. However, it is noted that New Zealand-made agar is now available in health food shops.

Section D – Locations and features of different seaweeds

Heading: Locations and features of different seaweeds

This section provides information about the distribution and characteristics of different types of seaweed based on their color (red, brown, green). It explains that each color tends to live in specific locations or zones determined by factors such as depth and exposure to sunlight. It also mentions specific habitats where certain types of seaweed are commonly found.

Section E – How seaweeds reproduce and grow

Heading: How seaweeds reproduce and grow

This section discusses the methods of propagation for seaweeds through spores or fertilization of egg cells. It highlights that seaweeds do not have roots, leaves, flowers, fruits, or seeds. Instead, they absorb nourishment through their fronds when surrounded by water.

Section F – Why it doesn’t dry or sink

Heading: Why it doesn’t dry or sink

In this section, various adaptations of seaweeds to maintain buoyancy and prevent dehydration are mentioned. Some seaweeds have air-filled floats or large cells filled with air, while others have swollen stems, nodules, slimy fluid, or mucilage on their surface. These adaptations help the seaweeds withstand exposure to air and waves.

Flow chart:

7. Answer: New Zealand carrageen
This information can be found in Section B where it mentions that New Zealand has some 30 species of Gigartina, a close relative of carrageen or Irish moss.

10. Answer: cough mixture
This information can also be found in Section B where it mentions that agar extracted from certain species of seaweed has commercial applications in cough mixture.

Classify the following descriptions as relating to:

11. Answer: A – Can resist exposure to sunlight at high-water mark
This description matches the information provided in Section D about certain seaweeds being able to resist long periods of exposure to the sun and air.

12. Answer: C – Grow in far open sea water
This description matches the information provided in Section D about deep-water rocks on open coasts being the usual habitat for certain types of seaweeds.

13. Answer: B – Share their habitat with karengo
This description matches the information provided in Section D where it mentions that purple laver or Maori karengo is found in flat rock surfaces near mid-level tides, which is also a common habitat for other brown seaweeds mentioned earlier.

Overall, these headings accurately summarize the content discussed in each section of the passage.

In conclusion, the reading reveals valuable insights into the diverse range of seaweeds found in New Zealand. The research highlights their ecological importance, economic potential, and potential applications in various industries. Understanding and conserving these precious marine resources is crucial for sustaining both the environment and the economy of New Zealand.

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