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3 years ago

What are catalysts? What's their function?

2 answers:

8 0

Catalysts work by providing an alternative mechanism involving a different transition state and lower activation energy. Consequently, more molecular collisions have the energy needed to reach the transition state. Hence, catalysts can enable reactions that would otherwise be blocked or slowed by a kinetic barrier.

Vika [28.1K]3 years ago

7 0

Answer:

A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.

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Calculate the net force on the Fx and Fy of 20 N 17 N 45.50 250

marysya [2.9K]

Answer:

$F_{net}$ is 26.25 N

Explanation:

Given that: $F_{x}$ = 20 N, $F_{y}$ = 17 N.

This implies that the two forces are acting at right angle to each other. Thus applying the Pythagoras theorem, we have;

$F_{net}$ = $\sqrt{F_{x} ^{2} + F_{y} ^{2} }$

= $\sqrt{(20)^{2} + (17)^{2} }$

= $\sqrt{400 + 289}$

$F_{net}$ = $\sqrt{689}$

= 26.2488

$F_{net}$ = 26.25 N

The net force is 26.25 N.

3 0

3 years ago

(multiple choice) biology, thanks!

tensa zangetsu [6.8K]

Answer:

Stablising

Explanation:

Bcoz they acquiring mean character

4 0

3 years ago

Read 2 more answers

Describe the main function of each biomolecule and then give an example for each.

Luba_88 [7]

$\huge\fbox\red{ᴀ}\huge\fbox\orange{ⁿ} \huge\fbox\pink{s}\huge\fbox\green{ʷ} \huge\fbox\blue{ᴇ}\huge\fbox\purple{ʳ}\$

The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes.

Example : Fats

functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses.

Example : Glucose

Nucleic acids function to create, encode, and store biological information in cells, and serve to transmit and express that information inside and outside the nucleus.

Example: DNA

.Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another.

Example: Keratin

Hope it helps

~ʆᵒŕ∂ཇꜱꜹⱽẻⱮë

3 0

3 years ago

Read 2 more answers

Glycogen Synthase Kinase:_______.

horrorfan [7]

Answer:

A. Will only phosphorylate glycogen synthase (GS) after GS has been phosphorylated by casein kinase.

Explanation:

Glycogen synthase kinase (GSK) is a type of enzyme capable of phosphorylating serine and threonine residues on the glycogen synthase (GS). The insulin hormone activates the synthesis of glycogen by dephosphorylating GS, but it is a mechanism that depends on the previous phosphorylation of GS by Casein Kinase (CK). GSK is also known to phosphorylate the insulin receptor (IRS), and thus controlling glucose metabolism.

4 0

3 years ago

Which statement is true A.An organism is part of a community. B.Acommunity is part of population C.An ecosystem is made up of on

NikAS [45]

<h2>(A) is the correct option </h2>

Explanation:

An organism is part of a community is correct,where species interaction occurs between different organisms
A community is part of population is the incorrect statement because a community includes group of population of two or more different species
An ecosystem is made up of only organisms is the incorrect statement because ecosystem is the community of both living and non living components of the environment and how they interact with each other
A biome is the biotic part of an ecosystem is incorrect because biome includes the community of both plants and animals occupying a large habitat

4 0

3 years ago