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Naddika [18.5K]
3 years ago
5

Enzymes are catalysts. This means that they are able to speed up chemical reactions. Which of the following statements is also t

rue of enzyme catalysts?
Biology
2 answers:
Gnoma [55]3 years ago
6 0
Enzymes are made up of proteins
Archy [21]3 years ago
6 0

Answer:

The question lacks options, the options are:

a. They must be continuously replaced after each catalyzed reaction

b. They increase the energy that is released by reactions

c. They are not used up by reactions

d. They increase the energy that must be absorbed by reactions

The answer is C

Explanation:

Enzymes are proteinous biomolecules produced by living organisms. They act as biological catalysts and regulate the rate of biochemical reactions in living cells by binding to the reactants/substrates involved in the reaction. Most reactions will not occur or occur slowly without certain enzymes.

Enzymes, like other catalysts share the same catalytic properties including the fact that they do not get used up or changed in any reaction they regulate, instead they are released and used again.

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Why is it important to know a persons rhesus factor before an blood transfusion
Ronch [10]
Blood transfusion procedures, it is important to know the blood type of the receiver and the giver, since in cases of incompatibility can be blood clumping of the blood, which can lead to death.

hope this helps!

7 0
3 years ago
Read 2 more answers
Which of the following is NOT a requirement for Hardy-Weinberg equilibrium?
aev [14]

Answer:

D. Small population size

Explanation:

Hardy-Weinberg equilibrium requires the presence of a large randomly mating population. Small population size makes the population more likely to deviate from the Hardy-Weinberg equilibrium due to sampling error or chance events occurring during the genetic drift. Large population size ensures that the population maintains the constant allele frequencies over generations, that is the Hardy-Weinberg equilibrium.

6 0
3 years ago
What is the allele frequency?
navik [9.2K]

Allele frequency:
Number of times an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
7 0
3 years ago
10 examples of biting and 10 example of piercing and chewing pests and how they affect crops​
VikaD [51]

Examples of biting and chewing pests are snails, slugs, caterpillar, Helicoverpa, diamond black moth, beetles , termites, leaf worms, grass hoppers etc.

Examples of piercing insects are  lace bugs, aphids, white flies, glassy winged sharp shooter, false chinch bugs, Bargrada bug, mealy bug, Eugenia psyllid,  Pittosporum psyllid,  Tipu psyllid etc.

<u>Explanation:</u>

Pests that affect crops have different feeding habits. Some pests belong to the type biting and chewing pests. These pests bite into the plant parts and chew them. This will leave circular holes in the leaves and semicircular holes in the leaf edges.

Piercing and sucking insects pierce into the plant parts and suck the sap. Removal of sap turns the plants yellow, and wilted. The growth might get stunted and in severe cases the plant may die off.

3 0
3 years ago
Mammals like caribou that live in the arctic often use different lipid types in their legs. Legs are more susceptible to heat lo
motikmotik

1. The lipid would be more saturated. FALSE

2. The lipids on the fatty acid tails would be much shorter. TRUE

3. The membranes would contain more cholesterol. TRUE

<u>Explanation:</u>

The mammal caribou lives I the extremely cold environment of the Arctic and thus has several physiological adaptations to survive the cold. They have short ears to reduce heat loss and have two layers of fur. The lipids in caribou legs have several adaptations

When compared with saturated fatty acids unsaturated fatty acids are more fluid at low temperatures. Thus the lipids in the legs of caribou are unsaturated to maintain fluid nature at low temperatures of the Arctic. Shorter lipids on fatty acid tails remain more fluid at low temperatures when compared with the longer ones.  

Thus the lipid in the fatty acid tails will be shorter. Similarly the presence of more cholesterol in the membranes would make it more fluid in the cold conditions of the external environment. Thus the membranes would have more cholesterol.

8 0
4 years ago
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