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My name is Ann [436]
3 years ago
14

Activity 8.2 how can changes in experimental conditions affect enzyme mediated reactions

Biology
2 answers:
notsponge [240]3 years ago
5 0
It is likely to be a negative feedback. D is formed from B or C. D reduces the activity of the enzyme that converts A.
zavuch27 [327]3 years ago
4 0

Answer:

The following are the modifications in experimental conditions, which influence enzyme-mediated reactions:  

1. With the increase in temperature, the kinetic energy possessed by the molecules also increases, and as enzymes catalyze the reactions by colliding randomly with the molecules of substrate, therefore, the elevation of temperature enhances the rate of reaction.  

2. Increasing the concentration of substrate enhances the rate of reaction, as more substrate molecules collide with the molecules of enzyme, thus, the formation of more products takes place.  

3. Elevating the concentration of enzyme, also enhances the rate of reaction, as more enzymes will come in contact with the molecules of the substrate.  

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Why is ∆Hf0 62.4 kJ/mol for I2(g), but 0.0 kJ/mol for I2(s)?
Aloiza [94]

Answer:

12(s) is in its standard state.

Explanation:

6 0
3 years ago
Within a gymnosperm megasporangium, which of the following developmental sequences is correct, assuming fertilization occurs? Gr
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Within a gymnosperm megasporangium, the following developmental sequences that are correct, assuming fertilization occurs is: megaspore, female gametophyte, egg cell, sporophyte embryo. The last Option (Option D) is correct.

In gymnosperm megasporangium, the meiotic division produces four haploid megaspores from a single cell, three of which generally degenerate. The female gametophyte is formed by mitosis from the surviving megaspore.

Prior to fertilization, the male mature gametophyte needs to be transferred to the female gametophyte for fertilization to take place.

When the nuclei of the sperm encounter the nucleus of the egg cell in gymnosperms, it fuses with the egg nucleus to produce a diploid zygote.

Mitosis occurs in the fertilized egg to initiate the growth of a new sporophyte generation (the multicellular embryo of the seed.)

Therefore, we can conclude that we've understood the mechanism of developmental sequence in the gymnosperm megasporangium.

Learn more about the gymnosperm here:

brainly.com/question/4526473?referrer=searchResults

3 0
2 years ago
Plant reproductive seeds are not enclosed nor found on cones or similar structures. These seeds are referred to as ___________.
Fittoniya [83]
The appropriate answer is e. gymnosperm. Gymnosperms have seeds that are not protected by an ovary or fruit. A popular example of a gymnosperm are conifers. Another characteristic of gymnosperms is that they do not have bright flowers. The Greek word for gymnosperm literally translates to naked fruit. The seeds of these plants are open to the air and as such they are directly pollinated by the wind.
8 0
4 years ago
Read 2 more answers
Determine whether each phrase describes a community, ecosystem, habitat, or population.
Yuri [45]

Answer:

A herd of bison - population

Frogs, insects, and birds living near a pond - community

The plants, animals, water, and soil of a forest - ecosystem

The kelp forest where sea otters live - habitat

All the hummingbirds that live in your state - population

Fish, eels, and lobsters living in a coral reef - community

A dying tree with holes that animals live in - habitat

Wetland plants, animals, and marshes - ecosystem

Explanation:

In ecology, the interaction of organisms are classified into categories including population, community, ecosystem etc.

A population in ecology consists of all the members of a particular species that inhabits a particular location. Based on the wide range of examples given in the question, a herd of bison and all the hummingbirds living in my state are examples of a population because they consists of organims of same species (bison and hummingbirds) living in a particular habitat.

A community, as opposed to population consists of organims of different species that share the same location as habitat. According to the question, Frogs, insects, and birds living near a pond and Fish, eels, and lobsters living in a coral reef are examples that represents a community because they contain organims of different species found living in a common habitat.

An ecosystem is the interaction between the biotic components (living) of a community with one another and also with the abiotic components (non-living). Based on the question, The plants, animals, water, and soil of a forest and Wetland plants, animals, and marshes represents an example of ecosystem because they contain living and non-living components interacting together. The living components in the first and second examples are plants, animals while abiotic components are water, soil and marsh.

Habitat refers to the physical location where the population or community of organisms lives. In this question, the kelp forest where sea otters live and a dying tree with holes that animals live in describes habitats of organisms.

5 0
3 years ago
Which will probably decrease population density?
-Dominant- [34]

The factor given in the choices that will probably decrease population density would be C. forest fire. Normal rainfall is beneficial to the ecosystem to help grow the vegetation and in result, benefits the consumers. Predators decrease the population while birth rate can also increase population. 
3 0
3 years ago
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