True
Explanation:
The mass of an electron is 9.11 x 10⁻³¹kg. It is the lightest subatomic particle compared the protons and neutrons.
Protons weighs 1.67 x 10⁻²⁷kg
Neutrons weighs 1.68 x 10⁻²⁷kg
- Electrons carry negative charges.
- They were first discovered by J.J Thomson where he called them cathode rays.
- They occupy the regions in space around the nucleus.
- The regions consists of orbitals and are called sublevels or subshells.
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S orbit can hold 2 electrons
Answer:
B. During the light reactions of photosynthesis, water is split, removing electrons and protons, and oxygen gas is released.
Explanation:
In Photosynthesis two phases occurs. They are grouped into light dependent and light independent phase (dark phase) reactions. In the light dependent phase, sunlight is trapped by chlorophyll and water is split into its components ( oxygen, hydrogen ions and free electrons; photolysis). Part of the electrons and the hydrogen ions are picked up by NADP (Nicotinamide adenine dinucleotide phosphate) converting it to NADPH and part of the electrons are used to replenished the photosystems trapping the sunlight.
<h3>
Answer:</h3>
1. Irreversible Inhibition-Inhibitor may permanently modify an enzyme
2. Irreversible inhibition- Tamiflu, a transition state analog, reversibly binds to neuraminindase
3. Competitive Inhibition-Inhibitor binds reversibly to an enzyme's active
4.Irreversible inhibition-Inhibitor binds to an enzyme at a site other than active site
5. Mixed inhibition-The Al3+ ion binds to acetylcholinesterase or to the acetylcholinesterase- substrate complex
6. Irreversible inhibition-DIPF permanently modifies the hydroxyl group of a Serine residue at the active site
<h3>
Explanation:</h3>
- An enzyme is a biological catalyst that catalysis chemical reactions.
- Enzyme activity is influenced by several factors which include enzyme inhibitors, temperature, and pH among others.
- Enzyme inhibitors are molecules that bind to the enzyme thus interfering with enzyme activity and preventing the binding of substrate to the enzyme.
- Inhibitors may either irreversibly or reversibly bind the enzymes.
- Competitive inhibitors compete with substrates for the active sites while non-competitive inhibitors bind irreversibly to other sites on the enzyme other than the active site.
- Tamiflu is an example of a competitive inhibitor.
- DIPF is an example of a non-competitive inhibitor as it binds the enzyme permanently.
Answer:
energy
energy is the reason why people can do things
