The spleen and the thymus work together to fight infection. These organs together make up which next level of organization?

Most of the aerobic respiration of a cell takes place in which structure?

Fed [463]

I believe it’s A in the question

6 0

2 years ago

g The Electron Transport Complex (ETC) consists of four proteins. How many of these proteins directly contribute to the proton g

vladimir2022 [97]

Answer:

Three proteins directly contribute to the proton gradient by moving protons across the membrane

Explanation:

The Electron transport chain is a group of proteins and molecules incrusted in the internal mitochondrial membrane and organized into four complexes, I, II, III, and IV. These complexes contain the electron transporters and the enzymes necessary to catalyze the electron transference from one complex to the other. Complex I contains the flavine mononucleotide -FMN- that receives electrons from the NADH. The coenzyme Q, located in the lipidic interior of the membrane, conducts electrons from complex I and II to complex III. The complex III contains cytochrome b, from where electrons go to cytochrome c, which is a peripheric membrane protein. Electrons travel from cytochrome c to cytochromes a and a3, located in the complex IV. Finally, they go back to the matrix, where they combine to H+ ions and oxygen, to form the water molecule. As electrons are transported through the chain, protons are bombed through three proteinic complexes from the matrix to the intermembrane space. These are complexes I, III and IV.

6 0

2 years ago

What is the sequence of the mrna made from the gene aaacaggtccca?

olga nikolaevna [1]

The mRNA is made by using the gene AAACAGGTCCCA as a template for complementary base-pairing. The pairings are: G (Guanine) to C (Cytosine), C to G, T (Thymine) to A (Adenine), and A to U (Uracil, as Tyhmine doesn't occur in the RNA). The resulting mRNA is UUUGUCCAGGGU.

5 0

3 years ago

Use the Harris-Benedict equation to estimate your calorie needs. Show your calculations to explain how you arrived at your answe

Ratling [72]

Answer:

The Harris Benedict Equation is a formula that determines the total daily energy expenditure (calories) using BMR with some activity factors.

Basal Metabolic Rate (BMR) is defined as the amount of calories one would burn without doing anything for 24 hours. It uses variables of weight, age, height and gender to calculate BMR.

BMR calculation = 447.593 + (9.247 x weight in kg) + (3.098 x height in cm) - (4.330 x age in years)

In Harris Benedict Equation, BMR is multiplied by activity factor to determine calories need.

The activity factors in Harris Benedict Equation are:

for no exercise = 1.2

exercise for 1 to 3 days/week or light exercise = 1.375

exercise for 3-5 days/week or moderate exercise = 1.55

exercise for 6-7 days a week or hard exercise = 1.725

exercise for 2 times training = 1.9

So, calculation for my calorie needs is as following:

BMR = 447.593 + (9.247 x 50 kg) + (3.098 x 164.592 cm) - (4.330 x 23 in years) = 974.945

Calorie needs = BMR x 1.55

= 974.945 x 1.55

= 1511.16 calories

6 0

3 years ago

Read 2 more answers

What is the scientist called that studies classification of living things?

tekilochka [14]

The person who studies living things is called a biologist

6 0

2 years ago

The spleen and the thymus work together to fight infection. These organs together make up which next level of organization?​

The spleen and the thymus work together to fight infection. These organs together make up which next level of organization?