Answer:
D. J. J. Thomson
An atom of calcium
Explanation:
J.J. Thomson while carrying out his experiment on the gas discharge tube discovered electrons. He called them cathode rays.
He observed from his experiment that these rays have the following properties;
- they move in a straight line normal to the cathode
- posses kinetic energy and cause the motion of a mechanical paddle
- attract positive charges
From his experiment, he proposed the plum pudding model of the atom where an atom is made up essentially of electrons.
B. The smallest particle of calcium that has all the chemical properties of calcium is an atom of calcium.
It is upon these unit of calcium that the substance calcium is formed. An atom of calcium will show the same properties as a block of calcium.
Answer:
b. Hydrogen-carbon
Explanation:
Triglycerides, also called fats are fatty acid esters of glycerol. One molecule of triglyceride consists of three fatty acids linked to one glycerol by ester linkages. Fatty acids are hydrocarbon derivatives with a long hydrocarbon chain in which carbon atoms are bonded to hydrogen atoms by covalent bonds. The carbon-hydrogen bond is one of the bonds with high energy levels. Therefore, the energy of triglycerides is stored in carbon-hydrogen bonds of hydrocarbon chains of fatty acids.
<span>What tissue provides structure to the bladder?
</span>urerhra.
Answer:
1. Thylakoid
2. Water
3. Oxygen
4. Glucose
Explanation:
Photosynthesis is a unique process where autotrophs make their own food. It is a metabolic activity that occurs in the Chloroplast. Photosynthesis occurs in two main stages viz: light dependent stage and light-independent stage. The light dependent stage, which occurs in the thylakoid lumen of the CHLOROPLAST. It involves the capturing of light energy from the sun using the Chlorophyll pigment. The Chlorophyll molecule gets excited and the energy derived is used to split water molecule in a process called PHOTOLYSIS OF WATER.
The protons derived from this is used to build a proton pump that will facilitate the synthesis of ATP. A reduced electron carrier (NADPH) is also produced. Oxygen gas is released as a byproduct in this stage.
In the light independent stage, also known as Calvin cycle, the NADPH and ATP produced in the first stage is used to synthesize glucose molecule.
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