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3 years ago

Identify the characteristics of protists

1 answer:

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Protist are eukaryotic organisms that cannot be classified as a plant animal fungus. They are mostly unicellular, but some like algae, are multicellular. Kelp, or “seaweed” is a large multicellular protist that provides food, shelter, and oxygen for numerous underwater ecosystems.

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What does cellular respiration have to do with homeostasis?

GREYUIT [131]

Cellular respiration is the term given to the metabolic reactions responsible for the conversion of biochemical energy in nutrients to adenosine triphosphate (ATP) with the generation of waste productions. ATP is required to provide the chemical energy to reactions in the cell that maintain homeostasis.

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3 years ago

Example 1: Two different enzymes are able to catalyze the same reaction, A → B. They both have the same Vmax, but differ their K

luda_lava [24]

Answer: (a) = 0.022mmoles/minute; (b) = 0.00022mmoles/minute; (c) = 0.022mmoles/minute

Explanation:

The Michaelis- Menten equation is used to show the relationship between substrate concentration and reaction rate.

The equation is Vo = Vmax[S]/(Km + [S]

where Vo is the initial velocity, Vmax is the maximum velocity, [S] is the substrate concentration, Km is the Michaelis constant.

(a) For enzyme 1; Vo = 0.002mmoles/minute, Vmax = ?, [S] = 0.1mM, Km =1.0mM; making Vmax subject of the formula;

Vmax = Vo * (Km + [S])/ [S]

Vmax = 0.002*(1.0 + 0.1)/ 0.1

Vmax = 0.022mmoles/minute (Vmax for Enzyme 1&2)

(b) Vo = Vmax[S]/(Km + [S]

Vo = 0.022 * 0.1/(10+0.1) = 0.00022mmoles/minute

Vo = 0.022*1000/(1.0+1000) = 0.022mmoles/minute

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3 years ago

Alicia often travels from the very hot climate of South Africa to her native North America. Which sensory receptor helps her adj

qaws [65]

The right option is; Thermoreceptors

Thermoreceptors helps her adjust to the change in the temperature of her surroundings.

Thermoreceptors are specialized nerve cells that are sensitive to detect changes in heat energy (temperature). Thermoreceptors are found in every part of the skin. They detect heat and cold, therefore, they allow sensory reception within the body. The sensitivity of the skin to temperature changes is based on the number of thermoreceptors and where they are located.

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3 years ago

Read 2 more answers

The use of DDT as a pesticide is an example of how new technology can have favorable and dangerous long-term outcomes. How does

kipiarov [429]

The right answer is Scientists should conduct long-term studies of DNA technology to determine the consequences.

DDT is a potent insecticide: it kills by opening the sodium channels of insect neurons, destroying them instantly, leading to spasms and then death. Some genetic mutations acting on the sodium channels can make some insects resistant to DDT and other insecticides working on the same principle.

The US Environmental Protection Agency has categorized DDT into the B2 class, that is, potential carcinogen for humans. This supports the fact that the insecticide acts on human DNA.

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3 years ago

Read 2 more answers

What is taxonomy and the kingdoms used in classifying living things

pishuonlain [190]

Answer:

Hello....

Explanation:

HOW R U? I AM FROM INDIA....

In biology, taxonomy is the scientific study of naming, defining and classifying groups of biological organisms based on shared characteristics.

In biology, taxonomy is the scientific study of naming, defining and classifying groups of biological organisms based on shared characteristics.The five-kingdom system of classification for living organisms, including the prokaryotic Monera and the eukaryotic Protista, Fungi, Plantae and Animalia is complicated by the discovery of archaebacteria.

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3 years ago