Answer:
a. Proteins
Explanation:
Chromosomes are made up of DNA tightly coiled many times around proteins
Answer:
Production of ATP via oxidative phosphorylation require an intact mitochondrial membrane because of the creation of an electrical potential.
Explanation:
Oxidative phosphorylation is a method, in which energy is converted into ATP by a sequence of protein complexes located inside the mitochondrial inner membrane. Production of ATP through oxidative phosphorylation requires an intact mitochondrial membrane because a change in electrical charge between both sides of the inner mitochondrial membrane results in the creation of an electrical potential. The protons have accumulated on the exterior of the mitochondria, making it positive (H), while the protons have been lost within, making it negative. On each surface of the membrane, a differential or gradient in chemical concentration has been formed. The cell transmits the energy stored in the decreased NADH and FADH via the electrochemical gradient.
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Answer:
The oldest fossils, between 3.5 and 3.8 billion years old, are then accepted as both the first life and prokaryotic.
When antibiotics kill too many good bacteria in the digestive tract fecal transplants can help replenish bacterial balance
Complete Question:
Which of the following is a process that changes the composition of rocks from one material to another?
Group of answer choices.
A. Erosion
B. Deposition
C. Physical weathering
D. Chemical weathering
Answer:
D. Chemical weathering
Explanation:
Weathering can be defined as the physical and chemical breakdown of rock into smaller pieces called sediment. Weathering can be classified into two categories namely;
I. <u>Physical weathering</u>: it is the process of breaking rocks into pieces without affecting its chemical composition e.g temperature, abrasion and frost action.
II. <u>Chemical weathering</u>: it is the process of breaking rocks into pieces by chemical action which leads to changes in its chemical composition e.g carbonation, hydration, plant acid and oxidation.
This ultimately implies that, chemical weathering refers to a process that changes the composition of rocks from one material to another. Some of the by products of chemical weathering are clay minerals, quartz, feldspar, muscovite, etc.
