Carbon Dioxide and Organic

 Carbon Dioxide and Organic

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 Carbon Dioxide and Organic

Question Description

I need help with a Science question. All explanations and answers will be used to help me learn.

QUESTION 1

Oxygen, carbon dioxide, and other small molecules cross the plasma membrane through the process of ____.a. osmosisb. facilitated diffusionc. endocytosis and exocytosisd. active transporte. diffusion

4 points

QUESTION 2

The minimum amount of energy needed to get a chemical reaction started is called the ____ energy.a. chemicalb. activationc. enzymaticd. reactione. triggering

4 points

QUESTION 3

A series of enzyme-mediated reactions by which cells build, remodel, or break down organic molecules is known as ____.a. the induced-fit modelb. intermediary compoundsc. energy carriersd. metabolic pathwayse. activation

4 points

QUESTION 4

The sodium-potassium pump is an example of ____.a. active transportb. osmosisc. facilitated diffusiond. simple diffusione. bulk flow

4 points

QUESTION 5

What happens to a molecule when it is phosphorylated?a. It gains electrons.b. It loses electrons and protons.c. It receives a phosphate group.d. It loses energy.e. It becomes denatured.

4 points

QUESTION 6

In which cellular organelle does photosynthesis take place?a. chloroplastsb. lysosomec. rough endoplasmic reticulumd. Golgi bodiese. mitochondria

4 points

QUESTION 7

In animals, when ATP concentrations are high, glucose is converted into ____.a. glycogenb.starchc. glycerold. carbon dioxidee. pyruvate

4 points

QUESTION 8

Photosynthesis converts the energy of light into ____.a. chemical bond energyb. pigmentsc. carbohydratesd. heat energye. electrons and protons

4 points

QUESTION 9

In the light-dependent reactions of photosynthesis, how do hydrogen ions get back into the stroma?a. passive diffusion through ATP synthaseb. active transport across the thylakoid membranec. passive diffusion directly across the thylakoid membraned. active transport through ATP synthase

4 points

QUESTION 10

When glucose is used as the energy source, the largest amount of ATP is produced in ____.a. the Krebs cycleb. acetyl-CoA formationc. electron transfer phosphorylationd. fermentatione. glycolysis

QUESTION 1

The majority of DNA in a cell that has undergone differentiation is _____.a. turned offb. transcribedc. hydrolyzedd. mutated e. translated

4 points

QUESTION 2

The connection point of two sister chromatids is called the _____.a. centromereb. centrosomec. chromatind. chromatide. centriole

4 points

QUESTION 3

In the nucleotide sequence ACTGG, what does C stand for?a. cytotoxicb. cytosinec. cysteined. chargaffe. cytoplasm

4 points

QUESTION 4

In animal cells, ____ is/are usually a one-way path.a. translationb. transcriptionc. replicationd. replication and translatione. differentiation

4 points

QUESTION 5

The structure of a DNA molecule is analogous to a _____.a. coiled springb. paper clipc. forkd. laddere. rope

4 points

QUESTION 6

Transcription starts at a region of DNA called a(n) _____.a. transcriberb. terminatorc. promoterd. activatore. sequencer

4 points

QUESTION 7

What is an anticodon?a. the region of the mRNA that base pairs with the tRNAb. the region of the mRNA that codes for an amino acidc. the region of the tRNA that base pairs with the mRNAd. the region of DNA that base pairs with the codone. the region of DNA that codes for the codon

4 points

QUESTION 8

Which of the following carries amino acids to ribosomes?a. hnRNAb. all of thesec. mRNAd. rRNAe. tRNA

4 points

QUESTION 9

Which process is responsible for the conversion of DNA information into messenger RNA?a. duplicationb. transcriptionc. replicationd. translatione. synthesis

4 points

QUESTION 10

Translation stops when _____.a. one of the three stop codons is encounteredb. enzymes attach to the mRNA molecule at the end of the transcriptc. stop codon tRNAs add guanine caps to the newly formed peptided. the cell runs out of tRNAe. a certain number of codons have been read

 Carbon Dioxide and Organic

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